Considerable A/C Repairs requiring a DIY budget
I have a Rheem split central air system. I was working downtown and my wife called complaining of a bad odor and a buzzing noise coming from the room where the inside part of the A/C system is located. When I got home I found that the blower motor in the inside unit was seized up and I assume had been that way for a while just buzzing away (I assume my electric bill will equal the national debt). I took apart the unit to investigate and was able to get the motor to run for a short period by spinning the squirrel cage. But the motor would stop and buzz shortly afterward. The evaporator coil was turning to a block of ice in 7 minutes, I assume, because the fan was not drawing enough air across the coil. It did not matter if I had the sheet metal panel reattached or not. Also, on the outside unit, a few days earlier, the thermostat would trip the blower to come on but the outside unit would not, but you could hear a clicking noise. Again, I took it apart to investigate and found that the relay was what was clicking. If I manually depressed the relay, the outside unit would turn on. Sometimes until I let go, other times it would stay running, I assume because of the thermostat setting. So, under these circumstances, can I assume that I need to replace the blower motor inside, replace the relay on the outside, and possibly replace the thermostat? If so, is this doable DIY and can you ballpark a cost associated with the repairs? Also, it appears that there is either soot from the cooked blower motor or black mold on the inside of the inside unit. What insulation need to be used to replace the stuff that's there?
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