Hello all, I don't like farming jobs out, but I had to this one. Since then I have found out my contractor isn't real knowledgable. Here is the problem:
Last spring I had my original hvac moved and changed from a gas furnace to electric and switched to a heat pump. Then a couple of cold days hit and I turned on my heat. Furnace would kick on, run the temperature in the house down 3 degrees and then the emergency heat would kick on. I called and he said it probably needed charged but it was too cold to charge it. I ran on emergency heat. It got warm and the ac worked good. It started to get cold again and I called him and he came out. We found out the top half of the A coil is hot and the bottom half was cold. One time it was like 75 degrees in the house and he turned on the heat and it was blowing 60 degree air. So he came out and replaced the flow restricting piston. It blew warmer air. He said since we changed the pressures with that piston it needed charged. He doesn't have a clue now and I suggested maybe too much fan. He went down there and said the fan was set on the slowest setting so he moved it up to medium (I think he moved it from high to med). Same problem. I have to cool the house in order to heat it.
I do know he has all banks of emergency heat wired together, so when it calls for eheat they all kick on. I was also wondering if the heat pump is supposed to run when the eheat comes on. My heat pump runs all the time the eheat is on. I also know the upstairs in my house is about 15oo sqft. he installed a 3 ton heat pump with a 4 ton air handler. i have the model #s if they would help. If anyone could give me any info I would appreciate it. Thank you in advance.
Last spring I had my original hvac moved and changed from a gas furnace to electric and switched to a heat pump. Then a couple of cold days hit and I turned on my heat. Furnace would kick on, run the temperature in the house down 3 degrees and then the emergency heat would kick on. I called and he said it probably needed charged but it was too cold to charge it. I ran on emergency heat. It got warm and the ac worked good. It started to get cold again and I called him and he came out. We found out the top half of the A coil is hot and the bottom half was cold. One time it was like 75 degrees in the house and he turned on the heat and it was blowing 60 degree air. So he came out and replaced the flow restricting piston. It blew warmer air. He said since we changed the pressures with that piston it needed charged. He doesn't have a clue now and I suggested maybe too much fan. He went down there and said the fan was set on the slowest setting so he moved it up to medium (I think he moved it from high to med). Same problem. I have to cool the house in order to heat it.
I do know he has all banks of emergency heat wired together, so when it calls for eheat they all kick on. I was also wondering if the heat pump is supposed to run when the eheat comes on. My heat pump runs all the time the eheat is on. I also know the upstairs in my house is about 15oo sqft. he installed a 3 ton heat pump with a 4 ton air handler. i have the model #s if they would help. If anyone could give me any info I would appreciate it. Thank you in advance.
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