Solved! Carrier A/C is not heating

Heating with an air conditioner plays a great role during the off-season, when it is getting colder outside, and a cap of hot tea is unable to warm you up. Sure, it is necessary to make sure that your Carrier air conditioner has a heating function as the "winter" mode is not available in all HVAC appliances. Absence of the hot air from the unit is not equal to panic and alarm. There are some simple and typical issues worth checking out before requiring professional assistance. First, almost all air conditioners are equipped with a display (on the control panel or on the indoor unit). Check this board for error codes. If no alarming messages are found, then you just have to wait a bit. After switching to the "winter" mode, it takes some time to adapt to air heating. This usually does not exceed 15 minutes. Nevertheless, when after some time there is no hot air, then it is possible to check the air conditioner for malfunctions. There are a number of the most common causes of improper heating, but a faulty thermostat is the most typical. If the system is on, but set for heating instead of cooling, the system likely won’t operate. Switch it back to either cooling or auto mode (automatically switches between heating and cooling), and check that an appropriate cooling temperature is selected. As a rule,  78⁰F is a good setting for both comfort and energy efficiency when you are home. If you have a programmable thermostat, check to be sure your comfort schedule is properly set for cooling at the time you are having the issue, and make adjustments if necessary. Many of the malfunctions already discussed can ultimately damage the compressor. Your AC system’s compressor is mounted inside the outdoor unit and is responsible for circulating refrigerant through the system’s copper tubing and coils. If the power to your AC unit is on, and the thermostat is set properly, yet there is no noise coming from the unit, the problem may be a damaged or malfunctioning compressor. Replacing a compressor is a major operation, which should be performed by a licensed and experienced HVAC technician. This will likely also raise the question of whether it is time to replace the entire unit or do the repair. We strongly recommend stop DIY and arrange a professional HVAC repair assistant. Your conditioner is an expensive appliance that requires professional cleaning and maintenance at least twice a year.