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Old 07-16-2015, 03:08 PM   #1
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WOW blew out aircond.

both the air conditioners were kinda lacking in performance for cool air. now mine is old being 1997 yr. and don't know if anybody has actually took covers off and blew the coils out with air. lots of cotton and actual dirt.. I mean a lot of dirt..I am excited as now I really think they will blow colder again...just posting as a reminder for those of you with older units. Its real easy just like 8-10 5/16 bolts held my covers down. And with 3' long nozzle with bent end don't even have to bend over...now if my fridge would just come back...still want to know if I could use torch on the tubes to see if that would recrystallize the fluid....jefff
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Old 07-16-2015, 07:38 PM   #2
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The fluid over-heating causes a problem, like when you park severely off-level for extended periods, the "fluid" overheats (ammonia overheats creating flakes) and one section of the tubing by solidifying.This is corrected by re-leveling the RV by checking in the frig freezer for level. Shut off frig for a few hours, then re-light.This should correct this problem.
Units built in the 1980's and prior were turned upside down overnight to un-block the stoppage, this is not necessary for newer RV refrigerators, nor will it work.Gas Electric Refrigerators
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Old 07-17-2015, 08:19 AM   #3
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One of mine started tripping the 20 amp breaker after a few minutes of running.... Not really something a 13.5 amp unit should do.

Clamped on the wire and verified 21 amps at trip (not a bad breaker)

Went topside and did what you did

Clamped on wire andm 13.5 amps constant

Yup, that was it.
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Old 07-17-2015, 08:59 AM   #4
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Part of my annual maintenance when I take the MH out of winter storage is to check everything, which includes blowing out the coils of the AC units, heaters, frig and hot water heater. One never knows what/who wintered over in these areas. These are simple thing that can be done to make travels easier.
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Old 07-17-2015, 02:48 PM   #5
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There are two sets of coils/radiators. I had to clean the condenser coils due to freeze up and it was a lot harder to get to. The sheet metal shroud had to be removed and there were a lot of screws. I did get a lot of pet hair and compacted dust out of it. Worked great after that.

I might have been able to get a lot of out from inside using a compressor air nozzle but I am sure that I could not have done as good a job that way.
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