A/C not as cold....what to do/look for?

[Richard Cheese]

what can I do, besides take it to a shop and get bent over, about the A/C not blowing as cold as it used to?

besides the filters being cleaned, is there anything else? can refrigerant be added to the system, like in a car?

thanks

[dman74]

what can I do, besides take it to a shop and get bent over, about the A/C not blowing as cold as it used to?

besides the filters being cleaned, is there anything else? can refrigerant be added to the system, like in a car?

thanks

you need to keep in mind the ambient air temp it will affect the units ability to cool

[420 RIDER]

Put a guage in the duct and see what temp it is really blowing. and do note what the ambient temp is at that time.

[barefoot bob]

theres also whats called the heat exchange rate on motorhomes and haulers theres so much glass and poor isulation they usualy dont do to well in extreme heat

[Richard Cheese]

define "extreme" heat Bob.....100 degrees? 90 degrees?

[JoeDuner]

Check the return air temp and the supply air temp, there should be a 18-22 degree split(difference), so if the trailer is 100 degrees inside, the best air you will get is 78 degrees. If this is not the case, look at the condensor coil(outdoor coil) and hose it off. If you still have troulbles, you will have to take it in to a service place.

Just realize that the heat load will overcome the units ability to cool if it is undersized and you live in the desert.

Edited July 25, 2007 by JoeDuner

[Richard Cheese]

outside temp @ 102

temp inside the vent of the toyhauler A/C @ 76....so it's within spec

thanks for the help people..

[Duneraider]

FYI for anyone for in the future:

The RV a/c's don't have service valves (schraders) on them from the factory to check gas pressure.

If the compressor should ever burn out, replacement compressors are so expensive it's best to just replace the complete A/C unit.

I pull compressors out of some old boneyard low hour window units that are the same - for cheap change-out for tightwad friends with shoebox style cheap-o-winobeggos.

The bearings usually go out on the RV compressors, or low voltage conditions at most RV parks in the summer burns the windings out deluxe. Black Meadow at Havasu typically runs at about 90 to 98 volts on a hot summer day. Just murders the compressor.

Best to junk the unit when they burn out.

Best replacement prices are at Camping world.

If your RV parks voltage drops no less than 104 volts, these correctors will boost it back up to 120+ and you'll get cooler air.

Edited August 4, 2007 by Duneraider