LG Reverse Cycle Air Conditioner Not Heating
A lot of LG units do not have the same heating and cooling capacity. There are also models where the heater can be used only as supplemental heat, but not as a primary heat source.
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This means that the air conditioner might be heating, but the output is not as big as you thought it would be.
To check, if your unit is actually heating, you should:
- Place a piece of paper right in front of the air intake (the system should be running in heat mode).
- Once the paper gets pulled up to the intake grille, place your hand over it. If the paper begins heating up, then the heat mode is working.
- If the air coming from the intake is not warm at all, then your LG reverse-cycle air conditioner would require service.
Samsung Air Conditioner Heat Mode Not Working
Once you switch your Samsung air con to heat mode, give the unit at least 3-5 minutes to warm up. During this time, the fan won’t be working as the system is waiting for the air inside to become warmer.
Also, do bear in mind that the lower the outside temperature, the more difficult it would be for your air conditioner to heat up your house. You might have to use an additional heating source together with your air con.
Panasonic Inverter Air Conditioner Heat Mode Not Working
Panasonic air conditioners have a self-protection waiting period. That means that when you switch the unit between cooling and heating, the system is going to need about 3 minutes to warm up.
During this time, do not switch the air conditioner on and off and don’t send any other commands to the unit. Bear in mind that the fan won’t be working until the 3 minutes are up.
By the way, if your unit is set to ‘auto’, it will stop and initiate the heating cycle according to the default setting (68 F). In such a case, you would have to set the fan speed to ‘high’.
How to Fix Air Conditioner Not Heating?
Here are a few simple things that you can do:
- Check the thermostat. Make sure that it’s set to ‘heat’ and that the temperature setting is higher than the room’s temperature.
- Replace the air filter, if there is such a need. Usually, you’ll find the filter on the air return side of the unit.
- Make sure that no furniture or drapes are blocking the air vents. Don’t forget to check the outside rear grille.
- If you have air directional louvres, adjust them upward to improve the airflow.
- Close the doors and windows. Seal the gaps through which the heat might be escaping your house.
Why Is Cold Air Coming Out When the Heat Is On?
Your air conditioner might be blowing cold air, if the reversing valve is faulty, or if there’s a refrigerant leak. In such a case, it is always better to invite an expert over who is going to take care of the problem.
However, sometimes, there might be no problem at all.
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Your air conditioner is in defrost mode
If it is very cold outside, the unit can go into defrost mode every 40 minutes. The actual cycle can last for 10-45 minutes which means that during this time, your house might be receiving unheated air.
Your air con is going through a defrost cycle if the fans have paused, but the compressor keeps running, there are pools of water forming right under your outdoor unit or you have noticed steam coming from your outdoor unit.
The heated air coming from the air conditioner might seem cool, but in reality – it’s not
Unlike furnaces that deliver very hot air, air conditioners in heating mode aren’t able to produce air that is as hot simply because there is no fuel burning.
The temperature of the air coming from your air con would be around 85-90 degrees. That is enough to make your house warm, but a lot cooler than your body temperature, so you might perceive such air as ‘cold’.