AC Blows Hot Air On Passenger Side: Why?. · #4 · Sep 7, 2014 Try taking out the fuse for the HVAC module. Kia Optima. 3 fairly significant Typical Repair Cost: No data Average Mileage: 34,000 miles. Thr relay pins will be numbered jump 30 to 87 Reggie Whiddon, Expert If it comes on and starts cooling were gonna need a scantool. 4 Symptoms Of A Bad AC Pressure Switch – High or Low. 2014 Kia optima, takes a good 5 to 10 minutes for AC to start cooling, once engine is hot and AC is cooling it continues Ask an Expert Car Questions Kia Troubleshooting Verified Daniel Chaidez 11,837 Satisfied Customers Technician at Global Auto Repair Daniel Chaidez is online now Continue Related Kia Questions. However, this problem is also caused by low refrigerant levels, which should be checked regularly. TOP 5 WHY AC DOES NOT WORK ON KIA OPTIMA, AC BLOWS HOT FIX. A worn out or weakened blower motor can also produce abnormal sounds when in operation. How to Add Refrigerant to a 2011 Kia Optima EX 2. The pollen filter, also known as the cabin filter or microfilter, is a central component of the ventilation system in your Kia Optima. Connect the actuator wiring harness. Remove that relay and using a jumper wire bypass the relay sending 12 volts down to thr compressor this will force it to come on. Optima EX 2. As for the condenser fan, it costs between $300 – $425 for most cars. Feel free to contact us to make an appointment, 951 360-8518 Thank You Sign in to reply Get it fixed today at a shop near you. when leave the car to cool down and try the ac it is working again. AC BLOWS HOT, HOW TO TEST AC PRESSURE SWITCH ON KIA FORTE. AC Pressure Switch – High or Low>4 Symptoms Of A Bad AC Pressure Switch – High or Low. The most common causes for AC not cooling properly in Kia Optima are low or overcharged refrigerant, compressor malfunction, clogged cabin air filter, dirty condenser or evaporator coils, dirty or sluggish blower motor, and bad fuse or relay. Heater only blowing out front vents, no heat to feet or >Heater only blowing out front vents, no heat to feet or. My mechanic was stupped so he called the Kia technical support line. 6 Common Causes Of Air Conditioner Blowing Hot Air. Less frequently the cause may be electronic in nature (thermostat issues, power issued). The most common causes for AC fan blower motor not working in Kia Optima are blown fuse, bad relay, resistor or control module malfunction and faulty blower motor. To start this process, a technician will flush out the old refrigerant from your vehicles A/C system. The air that comes out of AC or indoor air handler. Once I start moving it starts to cool down. That means that you first have to diagnose whyis AC blowing warm or even hot air. When the air conditioner in your 2013 Kia Optima starts blowing hot air, you likely have a freon leak. Shop added 22 ounces of R-134A. Essentially, the air conditioner should be blowing cold air. ·Aug 10, 2014 Only show this user Its your cooling fan. checked freon it is at 30psi when compressor is on. When a/c is on, there is no cold air only hot. TOP 1 WHY KIA OPTIMA AC COMPRESSOR NOT WORKING, AC BLOWS …. Low coolant or air in the cooling system. com : Car complaints, car problems and defect information. After this, turn the key on and do not touch any of the HVAC controls. While your 2015 Kia Optimas air conditioner is being serviced, well also do an A/C evacuation and recharge. Essentially, the air conditioner should be blowing cold air. Kia Hyundai A/C Blowing Hot Air Repaired bad expansion valve txv tsv 2012 Kia Optima. low pressure lines do not get cold. Ecm fuse blows as soon as key is turned on. AC taking long time to cool. Typical A/C problems also include weak airflow, which could mean you have a compromised seal, mildew or. The most common causes for AC blowing hot air in Kia Optima are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. Then, theyll perform an evacuation (also known as a discharge) on the entire system per Kia guidelines. Remove it, wait a few minutes, then put the fuse back in. You can reset the HVAC or recalibrate it by disconnecting the negative terminal of the battery for about 5 minutes. I just looked at mine and there is only one fan for the condenser and radiator. A dirty filter causes the overall ventilation of the interior. Been 3 weeks and the AC has been working great. the group of 3 say start, ac high, and ac low. Optima A/C Recharge. Kia Master 2,417 Answers If your vehicle has dual-range selection for heating/cooling (you can select temperature range for driver separately from passenger), your drivers side blend door or actuator is not working properly. 2004 Kia Spectra a/c blows hot air. Hope this helps! Sign in to reply Classic Toyota of Henderson. Before replacing Heater Control Unit, it would only blow hot air from front vents- With this replacement it will now change from cold to hot and the air flow pressure does change from the front vents when changing the setting dial but there is still no air at all to feet and defrost. It should turn on when the ac is turned on. However, a bad electrical connector or broken wire, or a defect in the climate control unit can also cause the blower motor to stop working. Low Refrigerant And Leaks Repair Cost. The heater may stop working in Kia Optima due to low coolant level or air in the cooling system, clogged heater core, bad thermostat, faulty blend door actuator, bad water pump, dirty cabin air filter, bad blower motor, or HVAC control unit malfunction. 33K views 1 year ago TOP 5 WHY AC DOES NOT WORK ON KIA OPTIMA, AC BLOWS HOT FIX If you have Kia Optima and your car AC A/C is not working and the ac blows hot air and you want to. Install the Temperature Door Actuator. Air conditioner blowing hot air, Not yet, 2013, Had it. My wifes 09 Optima blows unbearable hot air from a/c. 2004 Kia Spectra a/c blows hot air. Warm air isnt the only Kia Optima A/C problem you may encounter. Locate the ac compressor relay in thr underhood fuse box it will be labeled. Too much high side pressure in the a/c system. Kia Optima AC not working. 33K views 1 year ago TOP 5 WHY AC DOES NOT WORK ON KIA OPTIMA, AC BLOWS HOT FIX If you have Kia Optima and your car AC A/C is not working and the ac blows hot air and you want to. At this point, the blower motor blows air across the it and the newly heated air blows on to the driver and passengers. The ones for the AC are closest to the front of the car. The pollen filter, also known as the cabin filter or microfilter, is a central component of the ventilation system in your Kia Optima. If the car is not moving both sides are fine, but once a start driving the driver side always start blowing warmer air than the passenger side, the 2015 Kia Optima - Why does my ac blow hot air on the driver side a nd cold air on passenger side when both settings are the same?. The most common causes for blower motor not working in Kia Optima are blown fuse, bad relay, resistor or control module malfunction, and faulty blower motor. Loss of compression by of AC compressor. The 2012 Kia Optima has 2 problems reported for a/c blows hot air. Thought it might be the evaporator or sensor. Recharging the freon in your AC system is an inexpensive and easy first step. Kia Master 2,417 Answers If your vehicle has dual-range selection for heating/cooling (you can select temperature range for driver separately from passenger), your drivers side blend door or actuator is not working properly. Anyone else with this problem? Judy 2,835 11 people found this helpful. Also check that if theres a pollen filter to the cabin air inlet that this is clean and free flowing Next you can test components simply by checking the temperatures by. The valve is really an inexpensive item maybe $50, but to change, the system needs to be discharged, remove wiring harness, undo snap-ring, pull out valve, install new unit, evacuate, charge. Too much high side pressure in the a/c system. Pull off the actuator. 7K views 1 year ago TOP 1 WHY KIA OPTIMA AC COMPRESSOR NOT WORKING, AC BLOWS WARM. If you notice that your A/C system’s air is cold at first, then quickly goes warm, this may be due to a clogged expansion valve, faulty compressor clutch, blown fuse, or leak. AC HEATER BLOWS HOT ON DRIVER SIDE COLD ON PASSENGER SIDE If the ac or heater is blowing hot on the driver side and cold on passenger side or blows Show more. Worked fine, nice cold air until about a month ago, then, only hot air when turned on. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system. Also check that if theres a pollen filter to the cabin air inlet that this is clean and free flowing Next you can test components simply by checking the temperatures by touching them with the system running. Lets say we repair your 2020 Kia Optima A/C system. Kia Optima A/C Blows Hot Air: 2 Complaints>2012 Kia Optima A/C Blows Hot Air: 2 Complaints. However, sometimes I can be moving and it will all of a sudden start blowing cabin temperature air for a few minutes. KIA OPTIMA AC BLOWS COLD AT FIRST THEN …. Insert the two 7/32 inch bolts into the actuator. The 2012 Kia Optima has 2 problems reported for a/c blows hot air. TOP 1 WHY KIA OPTIMA AC COMPRESSOR NOT WORKING, AC BLOWS WARM World Mechanics 258K subscribers Subscribe 8. 2011 kia sportage base model 2. AC BLOWS HOT, HOW TO TEST AC PRESSURE SWITCH ON KIA FORTE SPORTAGE SORENTO SOUL RIO OPTIMA Electrical Car Repair LIVE 210K subscribers Subscribe 25K views 1 year ago AC BLOWS HOT,. Since the AC compressor is driven by the engine, it doesn’t pump as much refrigerant when you’re at a stop or driving slowly. Here is a full list of the most common causes of why AC is blowing warm air: Low refrigerant levels (most common cause). 2012 Kia Optima A/C Blows Hot Air: 2 Complaints. If there is no air flow or reduced air flow from the vents on your Kia Optima, bad blower motor could be the culprit. When the air conditioner in your 2011 Kia Optima starts blowing hot air, you likely have a freon leak. All the motors for the AC mode and heater doors will recalibrate. A/C Not Blowing Cold Air 2015 Kia Cadenza This problem may be covered under warranty. Kia Optima AC not cooling – causes and diagnosis>Kia Optima AC not cooling – causes and diagnosis. Here is a full list of the most common causes of why AC is blowing warm air: Low refrigerant levels (most common cause). At the simplest level possible, the heater works by passing hot coolant from the engine into a tiny radiator called the heater core. Lets say we repair your 2020 Kia Optima A/C system. KIA OPTIMA AC BLOWS COLD AT FIRST THEN BLOWS WARM AIR, AC WORKS THEN QUITS If you have Kia Optima and the ac blows cold. When still it blows not even cool, but more cabin/room temperature. Kia Optima heater not working. Clogged expansion valve (insufficient refrigerant expansion). If your car is sitting in the sun with no shade, it will take a while to cool down because the dash components are going to warm the air as the cold air passes through the ducts. Kia Hyundai A/C Blowing Hot Air Repaired bad expansion valve txv tsv 2012 Kia Optima 33,140 views Jul 18, 2019 299 Dislike Share Save Benjamin T. They told him to completely bleed the freon out and slowly refill it. Disconnect the temperature door actuator wiring harness Remove the two 7/32 inch bolts from the actuator Pull off the actuator Install the Temperature Door Actuator Line up the shaft with the new actuator Push the actuator into place Insert the two 7/32 inch bolts into the actuator Connect the actuator wiring harness. with the engine at operating temperature and the AC turned on it should be as follows: A hot compressor / pump A hot high pressure. The most common causes for AC fan blower motor not working in Kia Optima are blown fuse, bad relay, resistor or control module malfunction and faulty blower motor. The 2012 Kia Optima has 2 problems reported for a/c blows hot air. kia dealership told me today t …. AC Blowing Hot/Warm Air: Whats Wrong? (6 …. 2014 Kia Optima LX 74k Miles Just had new belts put on around 73k as well as the other regular maintenance Drives great and I have no other problems. Average failure mileage is 68,850 miles. He thinks there is a glitch in the computer. Unlike most fairly innocent issues, AC blowing hot air is quite alarming. Is this an intermittent problem? Lately we have had customers complaining of AC blowing warm at times and cutting in and out. Kia Optima AC Is Not Working. If your car is sitting in the sun with no shade, it will take a while to cool down because the dash components are going to warm the air as the cold air passes through the ducts. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system. The most common causes for AC not cooling properly in Kia Optima are low or overcharged refrigerant, compressor malfunction, clogged cabin air filter, dirty condenser or evaporator coils, dirty or sluggish blower motor, and bad fuse or relay. The valve is really an inexpensive item maybe $50, but to change, the system needs to be discharged, remove wiring harness, undo snap-ring, pull out valve, install new unit, evacuate, charge. The most common causes for AC fan blower motor not working in Kia Optima are blown fuse, bad relay, resistor or control module malfunction and faulty blower motor. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system. The low relay is most likely bad. the group of 3 say start, ac high, and ac low. The valve is really an inexpensive item maybe $50, but to change, the system needs to be discharged, remove wiring harness, undo snap-ring, pull out valve, install new unit, evacuate, charge. Posted on Aug 08, 2018 1 Related Answer Randy Ohler 14585 Answers. ·Aug 10, 2014 Only show this user Its your cooling fan. When the air conditioner in your 2011 Kia Optima starts blowing hot air, you likely have a freon leak. If the heater has stopped working in your Optima, this process has failed in one way or another. The ones for the AC are closest to the front of the car. If the heater has stopped working in your Optima, this process has failed in one way or another. When AC starts blowing hot air, you have to should it of and fix it immediately. Air conditioner blowing warm air is not all that uncommon AC problem. Locate the ac compressor relay in thr underhood fuse box it will be labeled. If I turn the car off for about 5 minutes, then it works again. The valve is really an inexpensive item maybe $50, but to change, the system needs to be discharged, remove wiring harness, undo snap-ring, pull out valve, install new unit, evacuate, charge. At the simplest level possible, the heater works by passing hot coolant from the engine into a tiny radiator called the heater core. 2020 Kia Optima A/C Repair & Recharge. To do this, one of our technicians will remove the refrigerant in your A/C system (if there is even any left to remove). 12 Kia Optima SX - Turbo GDI 2. Replacing a blown fuse or relay usually costs no more than $15. To do this, one of our technicians will remove the refrigerant in your A/C system (if there is even any left to remove). 0, 274 hp 6 speed all areas of the cabin were blowing hot air when AC was on. See more Reply Save Like DABIGEASY Discussion Starter · #10 · Jul 27, 2012. Documented my repair of a 2012. 7K views 1 year ago TOP 1 WHY KIA OPTIMA AC. We here at Ultimate Performance would be more than happy to look at it for you. They say your mom was the best trick in all of Kabukicho back in the day SaveShare ReplyQuote. Start the car, but DO NOT TOUCH the AC controls. Air conditioner blowing warm air is not all that uncommon AC problem. Any ideas? Reply Save Like 1 - 5 of 5 Posts KingFatty · #2 · Aug 5, 2019 The compressor is not being driven, or the compressor is. Its like the compressor is shutting off. A/C blows hot all the time. The ones for the AC are closest to the front of the car. The most common reasons a Kia Optima ac isnt working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. I have a 2015 kia optima that is not blowing cold and upon…. 2014 Kia optima, takes a good 5 to 10 minutes for AC to>2014 Kia optima, takes a good 5 to 10 minutes for AC to. 2004 Kia Spectra a/c blows hot air. This part is about $8 delivered on ebay. AC BLOWS HOT, HOW TO TEST AC PRESSURE SWITCH ON KIA FORTE >AC BLOWS HOT, HOW TO TEST AC PRESSURE SWITCH ON KIA FORTE. Air conditioner blowing warm air. Any ideas? Click to expand I have a 2012 Optima as well and it too was fully charged and compressor worked fine. Kia suggests replacing the AC compressor even if we cannot confirm the problem and the receiver drier filter in the condenser with an updated part(s). If the car is not moving both sides are fine, but once a start driving the driver side always start blowing warmer air than the passenger side, the 2015 Kia Optima - Why does my ac blow hot air on the driver side a nd cold air on passenger side when both settings are the same?. com/kia-optima-ac-blowing-hot-air-causes-and-how-to-fix-it/#SnippetTab h=ID=SERP,5681. 4L Automatic transmission 49,000 miles My wife has complained of AC suddenly shut down the cold air when the outside temperatures get above 95 degrees, blowing only hot and. Most refrigerants include a leak sealer that will seal small leaks in addition to filling the R134a freon. AC BLOWS HOT, HOW TO TEST AC PRESSURE SWITCH ON KIA FORTE SPORTAGE SORENTO SOUL RIO OPTIMA Electrical Car Repair LIVE 210K subscribers Subscribe 25K views 1 year ago AC BLOWS HOT,. You cannot repair a broken blower motor, the part must be replaced with a new one. TOP 1 WHY KIA OPTIMA AC COMPRESSOR NOT WORKING, AC BLOWS WARM. The most common causes for AC blowing hot air in Kia Optima are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. And an engine thermostat replacement usually costs between $150 – $230. My wifes 09 Optima blows unbearable hot air from a/c. Also check that if theres a pollen filter to the cabin air inlet that this is clean and free flowing Next you can test components simply by checking the temperatures by touching them with the system running. We will also perform an A/C evacuation and recharge. Meanwhile, if your problem lies with the temperature sensor, it’ll cost. Air conditioner blowing hot air, Not yet, 2013, Had it>Air conditioner blowing hot air, Not yet, 2013, Had it. See less See more Frank McG 2013 Optima SXL - Titanium Showroom (List of Mods) Optima Forums is the community to discuss the Kia Optima as well as custom Kias and. 2015 Kia Cadenza A/C Not Blowing Cold Air: 3 Complaints. Hi there: It sounds like you make have a AC controller problem which controls the actuator doors for the vents. Hi there: It sounds like you make have a AC controller problem which controls the actuator doors for the vents. Optima A/C Recharge. AC HEATER BLOWS HOT ON DRIVER SIDE COLD ON. KIA OPTIMA AC BLOWS COLD AT FIRST THEN BLOWS WARM AIR, AC WORKS THEN QUITSIf you have Kia Optima and the ac blows cold at first and a few seconds later the a. 2012 Kia Sportage is blowing warm air on. Ecm fuse blows as soon as key is 2004 Kia optima 2. The most common causes for blower motor not working in Kia Optima are blown fuse, bad relay, resistor or control module malfunction, and faulty blower motor. At this point, the blower motor. If going that route, one must be extremely careful to make certain the pins in the new unit are not bent but straight. the group of 3 say start, ac high, and ac low. Compressor runs 10 to 14 sec then turns off. AC Blowing Hot/Warm Air: Whats Wrong? (6 Common Causes)>AC Blowing Hot/Warm Air: Whats Wrong? (6 Common Causes). Replacing a blown fuse or relay usually costs no more than $15. A typical air management system has three primary types of doors: an inlet door, a mode door, and one or more blend doors. Is this an intermittent problem? Lately we have had customers complaining of AC blowing warm at times and cutting in and out. 2014 Kia optima, takes a good 5 to 10 minutes for AC to start cooling, once engine is hot and AC is cooling it continues Ask an Expert Car Questions Kia Troubleshooting Verified Daniel Chaidez 11,007 Satisfied Customers Technician at Global Auto Repair Daniel Chaidez is online now Continue Related Kia Questions. a/c Can anyone give me a clue or solution to my a/c problem. Kia Optima AC blower motor not working. blowing warm when idle, cold when driving. The first symptom each time was hot air blowing when stopped but not when moving. 10-15 minutes does seem a little excessive for this time of year, but even when it is only 80 degrees outside the inside of the car can be well over 100 if it is in the …. Unlike most fairly innocent issues, AC blowing hot air is quite alarming. When a/c is on, there is no cold air only hot. The most common causes for AC blowing hot air in Kia Optima are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced cooling, heating and air flow. The inlet door determines whether fresh air or recirculated air travels through the system. A typical air management system has three primary types of doors: an inlet door, a mode door, and one or more blend doors. Yours is not, that is why your ac is warm when not moving but once you are going air begins to travel across the condenser removing the heat. 33K views 1 year ago TOP 5 WHY AC DOES NOT WORK ON KIA OPTIMA, AC BLOWS HOT FIX If you have Kia Optima and your car AC A/C is not working and the ac blows hot air and you want to. 2014 Kia Optima Ac Blowing Hot AirMeanwhile, if your problem lies with the temperature sensor, it’ll cost about $150 to replace it. #2 cause of AC blows warm at idle Your AC system is low on refrigerant. My mechanic has replaced a valve, put coolant in it, and checked the pressure. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system. They will bull out like a plug, straight up. Thats pretty much its main job. 33K views 1 year ago TOP 5 WHY AC DOES NOT WORK ON KIA OPTIMA, AC BLOWS HOT FIX If you have Kia Optima and your car AC A/C is not working and. Line up the shaft with the new actuator. Kia Troubleshooting Air conditioner blowing hot air, Not yet, 2013, Had it 1st thing to check is that the AC rad / condenser is clear of any debris and theres nothing in front of the air flow to it, next ensure that the AC pump drive belt isnt slipping and if any doubt replace it. We will also perform an A/C evacuation and recharge. Meanwhile, the mode door controls the air discharge location (i. Heater only blowing out front vents, no heat to feet or. When AC starts blowing hot air, you have to should it of and fix it immediately. AC blows hot when in traffic and not moving much. · #4 · Sep 7, 2014 Try taking out the fuse for the HVAC module. Kia Hyundai A/C Blowing Hot Air Repaired bad expansion valve. However, when the AC pressure switch goes bad, warm air might be all you get. Warm Air is Blowing When you turn on the air conditioning, you expect to feel cold air pour out. The AC blows warmer air when I am sitting still or I am in stop and go traffic. Question type: Maintenance & Repair Then it blows neutral air ( not hot, not cold). The most common causes for AC not cooling properly in Kia Optima are low or overcharged refrigerant, compressor malfunction, clogged cabin air filter, dirty condenser or evaporator coils, dirty or sluggish blower motor, and bad fuse or relay. When the air conditioner in your 2011 Kia Optima starts blowing hot air, you likely have a freon leak. ac started blowing hot air time to time. Before replacing Heater Control Unit, it would only blow hot air from front vents- With this replacement it will now change from cold to hot and the air flow pressure does change from the front vents when changing the setting dial but there is still no air at all to feet and defrost. The 2012 Kia Optima has 2 problems reported for a/c blows hot air. Top 5 Why Ac Does Not Work on Kia Optima, Ac Blows Hot Fix. Thought it might be the evaporator or sensor. TOP 1 WHY KIA OPTIMA AC COMPRESSOR NOT WORKING, AC BLOWS WARM World Mechanics 258K subscribers Subscribe 8. When the air conditioner in your 2011 Kia Optima starts blowing hot air, you likely have a freon leak. Interestingly, the sensor inputs still show a difference between #5 and #6 sensor 5 at C8 and sensor 6 at 03. Air >Air conditioner blowing warm air. Its in the fuse panel above the glove box. Cost me $110 for labor and he resued the freon he evacuated out. The single fan cant pull enough air and causing the high side pressure switch to shut off the compressor so it doesnt get overworked and fail. This will hopefully reset the module and the condition, ac blows hot air on passenger side. Clogged air filters (lowered airflow). Took my 2014 Kia Optima to dealership for repairs on Alternator bearing, ECU grade, replacement of serpentine belt, replacement of lights and … read more AutoDoc1 High School Diploma 14,725 satisfied customers 2004 Kia optima 2. They will bull out like a plug, straight. When still it blows not even cool, but more cabin/room temperature. 2014 Kia Optima LX 74k Miles Just had new belts put on around 73k as well as the other regular maintenance Drives great and I have no other problems. There are many reasons why your home AC is blowing warm air. 6 Common Causes Of Air Conditioner Blowing Hot Air. The valve is really an inexpensive item maybe $50, but to change, the system needs to be discharged, remove wiring harness, undo snap-ring, pull out valve, install. #2 cause of AC blows warm at idle Your AC system is low on refrigerant. SOLVED: My 2012 Kia Sportage is blowing warm air on. Kia Troubleshooting Air conditioner blowing hot air, Not yet, 2013, Had it 1st thing to check is that the AC rad / condenser is clear of any debris and theres nothing in front of the air flow to it, next ensure that the AC pump drive belt isnt slipping and if any doubt replace it. Kia Optima AC blowing hot air. Heat exchange is impossible without freon; you might have a leak in refrigerant lines. I dont know how long this has been an issue since I live 15 minutes from work I never drive more than 30 minutes really at any given time. Low coolant level or air in the cooling system. Dirty cabin air filter. The most common causes for AC blowing hot air in Kia Optima are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. If the system is low on refrigerant, it will show up as AC blows warm at idle and blows colder when the engine is running at higher RPMs. Warm Air is Blowing When you turn on the air conditioning, you expect to feel cold air pour out. Then, theyll perform an evacuation (also known as a discharge) on the entire system per Kia. Kia Optima: Heater Not Working Diagnosis. TOP 1 WHY KIA OPTIMA AC COMPRESSOR NOT WORKING, AC BLOWS WARM World Mechanics 258K subscribers Subscribe 8. Worked fine, nice cold air until about a month ago, then, only hot air when turned on. 2004 Kia Spectra a/c blows hot air. Then, they’ll perform an evacuation (also known as a discharge) on the entire system per Kia. Kia Optima AC not cooling. Disconnect the temperature door actuator wiring harness Remove the two 7/32 inch bolts from the actuator Pull off the actuator Install the Temperature Door Actuator Line up the shaft with the new actuator Push the actuator into place Insert the two 7/32 inch bolts into the actuator Connect the actuator wiring harness. Strange Air Conditioning System Noises. Took my 2014 Kia Optima to dealership for repairs on Alternator bearing, ECU grade, replacement of serpentine belt, replacement of lights and … read more AutoDoc1 High School Diploma 14,725 satisfied customers 2004 Kia optima 2. When the air conditioner in your 2013 Kia Optima starts blowing hot air, you likely have a freon leak. Door Actuator: Symptoms, Location, & Replacement FAQ>Bad Blend Door Actuator: Symptoms, Location, & Replacement FAQ. com : Car complaints, car problems and defect. Most commonly the cooling coils are hot due to an issue in the refrigerant cycle (low freon, compressor issue, valve issue). Test the actuator by moving the temperature control and watching the actuator. 2014 Kia optima, takes a good 5 to 10 minutes for AC to start cooling, once engine is hot and AC is cooling it continues Ask an Expert Car Questions Kia Troubleshooting Verified Daniel Chaidez 11,007 Satisfied Customers Technician at Global Auto Repair Daniel Chaidez is online now Continue Related Kia Questions. My wifes 09 Optima blows unbearable hot air from a/c. The ones for the AC are closest to the front of the car.