20 Most Recent Heat Controller PE121A Air Conditioner Questions & Answers

pilot generator may be bad if you have propane heat.In some cases that can indicate a low voltage short ,or could have a bad transformer on unit

First of all, Is it collecting water?. If not then it most probably has a leak in its refrigerant system. If that is the case then you need to contact your local repair person/shop.

Assuming this is a dual unit heats and cools. You may have a sticking transfer valve or a defective compressor. The trf valve simply switches the cool to the heat. Suggest you contact a qualified ac technican.

This is normally due to the drain hosing being blocked. Find where the hose drains the water to, which is likely to be outside the house or into the drains, and check that the end is not blocked. If this is OK you will need to follow the hose back to the unit and find where the blockage is.

replace the pressure switch

Assuming you paid the gas bill the burner is not igniting. Best to contact your local service people.

on the remote control it is mode button.pres him untill show heat on display