This morning my heat quit, 30(+) year old Coleman Evcon. I noticed things were not right when it got chilly in the house. The thermostat was on, calling for aux heat but the outside unit was not working and the blower inside the air handler was not blowing. I checked all the breakers and looked for anything obvious. It appeared the blower relay was not closing.
I called my serviceman and explained all of this. He sent someone to the house at about 11:00 am. I explained what I had done and what I thought the problem might be. The guy did a little checking with an analog multi-meter, my digital multi-meter and a spare capacitor and informed me my capacitor was bad. He drove back to his shop about 7 miles away and came with another capacitor (actually two 5s in place of my 10) he hooked it up and that didn't do it. He then determined that my fan motor was bad. He showed me that it was still very warm and there was some slop in the shaft. He took the fan out and carried it back to his shop about 7 miles away. He returned a few hours later with a new fan motor and capacitor. He installed it and it still did not work. I asked again about the relay and offered my digital multimeter again. He determined that the relay must be faulty. Another trip to the shop. He returned with a new blower relay installed it and still no success. I helped him check a few more things and pointed out that, as before, that there was only 21 or 22 volts coming off the transformer. (I now think this is the problem) So, I sent him home puzzled and he said to call him when I got home from Church tomorrow and he and the boss would come out. That was at about 7:00 pm. I think the guys is a parts changer and I don't think I should have to pay for his lack of experience or numerous trips to the shop. I fear a gigantic labor bill.
Opinions on how I should handle this?