Blog :: May 2017 :: Be Good to Your A/C and It Will Be Good to You!

Be Good to Your A/C and It Will Be Good to You!

As you are getting your RV ready for the season, don't forget to check your A/C!

Outside Inspection:

Make sure the plastic cover (shroud) over the A/C unit on the roof is in good shape (no cracks or splits in the plastic).  It can get damaged by the harmful chemical interactions of the sun's U/V rays or from low hanging branches.  As a matter of fact, the sun's rays can weaken the plastic over time to the point that it can actually fall apart. 

And while you are up on the roof, make sure the A/C is securely mounted. There is a foam rubber gasket between the A/C unit and the roof and if the mounting is loose, water will find it's way in!  When water enters your camper, it will more than likely follow the roof rafters and wall framing ending up in a place you would least expect it. If left undetected for awhile, you may end up needing to replace flooring as well!

You will also want to check the cooling fins.  If they become bent over, the air flow will be restricted and greatly reduce the A/C's cooling ability.  You can usually use a comb or dull knife to straighten them out, being very careful not to puncture the condenser tubes.

Did you know that RV air conditioning units are SINGLE USE?  Eventually, they get to the point that they don't cool any longer, and you will need to purchase a new one.  RV A/Cs are not designed to be recharged and about the only part you can replace would be the starting capacitor for the compressor motor.  

The following events can cause a capacitor to fail...

If you try to run the A/C on an electrical circuit rated for less than 30 amps,  this restricts the current necessary to run it and you will get a low voltage condition or a "brown out."  When the unit can't get the amperage it needs, it will heat up and eventually destroy itself.

NOTE:  Some of the larger motorhomes and trailers have two A/Cs powered through one 30 amp power cord.  This type of setup will cycle one A/C on, and when it comes off, the cooling cycle will switch the compressor on for the other A/C.  This alleviates the need for a heavier 50 amp power cord.

Always be sure and run both A/Cs to verify that proper load sharing is occuring! 

Inside Inspection:

Beneath the plastic shroud on the ceiling of your RV, you should find one or two foam filter elements.  These can be washed with warm soapy water and reused!  And while the shroud is off, be sure and clean as far into the ductwork as possible.  

Portable Generators:

Just a quick note - if you are using a portable generator, be sure that it is rated for a minimum of 3,000 watts!

Just remember, most RV air conditioners are not rechargeable so when they fail - they are pretty much junk!  The best thing to do is maintain them properly!

A special "thank you" to  Curtis Carpenter with doityourselfrv.com for his helpful advice.









Posted: 5/3/2017 8:59:16 AM by Linda Casey | with 0 comments

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