Re: Aft Climma unit trips fuse even when switch turned off at the unit
Judy and Bill aboard SV BeBe <yahoogroups@...>
Mark,toggle quoted messageShow quoted text
Do you know if yo have a ground fault or a short? You said "It immediately trips the shore fuse and/or the boats main AC fuse (in compartment behind the panel)." If it is not tripping the breaker for "Clim Ar," I would assume that you are looking for a ground fault. If I had this problem, I would try to figure out a systematic routine to find the problem. First thing I would do is disconnect all power leads at the A/C unit. If the same breakers trip with the unit disconnected, your unit is fine and there is a wiring problem between it and the breaker panel.
However, those fan capacitors will need to be replaced because they control the fan speed. As they get weak, the fan will slow...you probably will not notice it, but there is a thermo-switch on the heating coil unit that will notice the decreased air flow and cut the heaters off...first chance you get, you need to replace them. Two of the capacitors are are 2μF and the one marked C1 is 3.15μF. I have hull 387 and recently replaced all of the fan capacitors on the 3 a/c units...total 9 capacitors. They are not easy to find unless you want to pay 10 times the price by buying them from a Climma dealer. I bought mine at an electronics supply store which had to special order them for me. Remove one and take it with you.
Hope this helps.
BeBe, Sm2k, #387
Currently at anchor, Gokkaya, Turkey
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