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Maintenance
Service tech says I need a new unit …

Service tech says I need a new unit …
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SeaDoc

2:35 pm July 25, 2010
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Post edited 1:46 am – July 26, 2010 by SeaDoc

A/C not blowing cold on 1998 Cruisair FX16C, SMX II controls. Service tech came out and said the compressor was very hot. He tried to cool down the compressor and also charged the system the best he could. He was unable to get compressor to start but said I should try when I got to the boat and the compressor had completely cooled down. I'm at the boat now and hear the compressor "click" but not start. Tech said if it didn't start then I need a completely new condensing unit – just shy of $3k installed. I'm not sure if I am being "taken" or not. Is there is more checking and a possible repair before I replace the unit? Should I have another tech take a look? What specific questions should I ask before I replace the unit?

Here is what the tech wrote on the invoice:

LABOR; CHECK SALON AC UNIT FOUND UNIT RUNNING AIR WAS ROOM TEMP. COMPRESSOR VARY HOT SHUT UNIT OFF. HOOKED UP GAUGES SET UP TO CHARGE SYSTEM. COMPRESSOR WOULD NOT START. TALKED TO CUSTOMER HE WILL TRY TO RESTART COMPRESSOR AFTER UNIT COOLS DOWN.
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Steve Pooler

posts 1127

7:14 am July 26, 2010
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Sounds like your tech is being honest…And if the unit cooled overnight & won't start….I'm afraid it's not going to again…If it does start again, be sure to shut it right off & get him back out to top it off (he can't charge it fully when not running)

Low freon makes compressors run very hot & burn themselves up internally….

Steve~
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SeaDoc

9:00 am July 26, 2010
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Thanks for your quick replay and I really appreciate your input. Is replacement the only option or can a unit be repaired?
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Steve Pooler

posts 1127

12:08 pm August 3, 2010
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The compressor can be replaced but not rebuilt…it's Hermetically sealed (welded together)

A replacement compressor without labor is $660…Add labor & extra parts, and sometimes considering the shape of the whole condensing unit…It is better to just replace the whole thing…The warranty is better with a complete new unit, and you now have a new unit instead of an older repaired unit…Less chance of freon leaks because at least the new unit is tested at the factory and holding a charge when it reaches the customer….

Leaks in the rest of the system are another thing, and I strongly suggest which ever route you go…Be sure your tech tests the rest of the system for leaks…Not that he wouldn't…But as I have said many times before…Running even slightly low on freon is one of a compressors biggest enemies….

Steve~
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