| Original DuoTherm hot wire procedure [message #259645] |
Thu, 21 August 2014 18:12  |
Tilerpep
Messages: 404
Registered: June 2013
Location: Raleigh, NC
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I posted in another thread I started my beach vacation with two original roof airs working well. Day 6 saw the 13.5 unit fan stop running, and Day 8 the 11K unit fan would run, but when it tried to start the compressor, just a stuck electric sound. Climbed up today. Good news on the bigger unit - a big, old, wasp nest had broken loose and jammed the outside fan against the housing. Rear air had no obvious issues like that. I pulled the electrical box covers to see if anything corroded and it looked pretty good actually.
Page 28-6 of the parts book showed me what was what, and I found the diagnosis run through on 24E-6 in maintenance book. So some clarification would help from you all...
The first remedy for a non-starting compressor is "add an extra start capacitor" momentarily. Since my front unit seems to use the same guts, can I wire the front into the rear? Am I putting this in series or parallel (I am thinking like wiring in car speakers, where ohms half and stay the same type thing here) to test this? Series seems easy with push on connectors. [Should I just swap from the other unit, rather than the hot wire combo deal as a first step?]
More info that might help: I turn fan on, fan runs fine. I turn it to "cool" and fan turns fine, two or so delay minutes pass and the big click of the relay is heard, but compressor does not get rolling.
The big unit compressor has wiring connections on top, easy to get to. The 11K compressor connections look down low, inside.
Extra thoughts are always welcome.
1975 Glenbrook, 1978 Royale rear bath
Raleigh, NC
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