well..this is da first time i heard about this, the first thing i would check is da contactor IT migth be not doing contact properlly thecompressor is going on and off
why does ac blow warm air? why does ac blow warm air?
Air in the water system.
Your furnace may be blowing cold air and then hot air intermittently due to a malfunctioning thermostat, a clogged air filter, or issues with the furnace's ignition system. It is recommended to have a professional HVAC technician inspect and repair the furnace to resolve the issue.
you should probably check your water in your radiatior and if it is full you might need to replace the cap. If neither of thise are the problem it may be your heater core which sucks or something electrical.
good question
When you blow, you are exhaling air from your lungs, which is warm because it comes from your body. When you huff, you are exhaling air from your mouth or throat, which has had a chance to cool down slightly before exiting. This difference in temperature between the air from your lungs and the air in your mouth/throat causes the sensation of cold or warm breath.
Compressor not operating.
if the heater does not blow out warm air change the setting.
The furnace may blow cold air instead of warm air due to issues such as a malfunctioning thermostat, a clogged air filter, a problem with the pilot light or ignition system, or low fuel supply. It is important to troubleshoot and address these issues promptly to restore the proper functioning of the furnace and ensure it blows warm air.
because you need to keep warm when it is winter and other times when it it cold
Temp blend door malfunction.
Temp blend door actuator is bad on the passenger side assuming you want both sides to blow cold air.