LILRED74

I'm sorry it has taken so long for me to answer. My son is in the Army and he has come home for a visit. Yes the filter and coils are cleaned. The guy helping us here cleaned the coils and we have tried several different filters. I forwarded your last suggestion to him and hopefully he can help. It is starting to get expensive on the service calls. I really appreciate all of your help. It would be great if we were in the same area.

Mr. Katen, Thank you for all of your help. We have called in another hvac tech and he says as far as he can tell the thermostat is connected correctly and there is no bad relay. Any other suggestions?

Our thermostat has 4wires but on the back of the pkg it is saying something about a 240v system with 3wires? When I flip the switch it will run until the thermostat is satisfied and cut off but then will not come back. No, the blower does not come and I'm not sure about the pump. Can you tell me where to look for it?

I have a question for Mr. Katen. I live in Albama and have an Apollo system. We had only owned the house 8months and don't know much about the previous owners. Our heat system does not seem to work properly. There is a switch mounted in the heater closet and everytime we want heat we have to flip the switch off and then on again. The unit will not come on by itself even if it is 30degrees in the house. Over the summer we had to put a new thermostat in and I am now curious that we might have the wrong thermostat. I cannot find enough information on the unit to find out if it is 2wire or 3wire system and these units are very uncommon in the south so no one seems to be able to help. Any ideas?