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Old 10-03-2010, 12:40   #16
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Quote:
Originally Posted by Sailmonkey View Post
While heating you get to keep the heat generated by the compressor, that while cooling is dumped overboard as lost energy
Yes, heating is more efficient (an electric heat element is 100% efficient). But A/C in reverse cycle does also produce more BTU's output because the medium is more efficient at higher temperatures.

cheers,
Nick.
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Old 10-03-2010, 12:51   #17
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I would suspect a cooling water issue. Could be a clogged intake or a clog anywhere in the system. When it's next turned on look for a good strong stream of cooling water at the outlet. If the flow is weak or just dribbles you have found the problem. The newer units with the "smart" contollerswill tell you that you have a high pressure situation and it will not try to start the compressor. The older units don't have this feature.
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Old 10-03-2010, 13:05   #18
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My Cruisair system was doing the same thing. The problem with mine was that the blower fan was pretty much siezed up, which required a lot of extra amps trying to turn it. I could plug it in and turn it on, and it would run for 15 minutes or so, but when the compressor cycled off and tried to kick back on, it would throw the breaker.

I sprayed down inside the fan motor with contact cleaner and then WD-40, spun it by hand about 1000 times each way, then tried it again. That was apparently enough to free it up and lower the amp draw to an acceptable level.
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Old 10-03-2010, 13:39   #19
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Well, I certainly have quite a few things to look at now, thanks for all the help.
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