Air Condition Unit

dougrainer wrote:

vjstangelo wrote:

10forty2 wrote:

Effy wrote:
Is it low on Freon? Why did you set to 64? Did you really want the temp to reach 64? Because turning it down further than the desired temp does not make it work any harder or faster. A thermostat is not an accelerator. If you want 72, setting it to 64 won't make it cool to 72 any faster than actually setting it to 72. It does not run cooler the lower you set it. If it froze up then it's low on Freon (or whatever they put in them these days). Were you plugged in shore power and getting the right power to it? Is the unit clean? If it can't breathe right it can't cool efficiently.

I set it to 64 because I like it cold in my RV and I wanted icicles hanging when I came back in from the hot concert....:B

I do know that it doesn't cool faster set that low, but it never seems to be cool enough inside until I get the temp (according to the thermostat) down into the 60s. All window shades closed and a floor fan running. I keep my house at 68 and ceiling fans running all the time..... I haven't had a problem in the past three years with the A/C units, but this time it just wasn't moving the air.

When I was up on the roof cleaning it, although I didn't remove the cover, I did visually look for tree debris and anything else I could see through the gills. All appeard to be good from the outside.

Effy is absolutely right. I can speak from experience as my DW once did the same on our 13.5 BTU unit. It was going to be over 100F one day in Denver and she set the tstat to very low temp. Since the compressor was not able to cycle off and defrost, the evaporator iced up even though the temp was hot outside with almost no cooling airflow coming out of the duct

I raised the temp so that the compressor cycled off and the evaporator ice melted. Told her not to lower less than 70F and no more problems.

Absolute rubbish. From your sig, you have a Winne. Wall Tstat RV AC Units have a FREEZE THERMISTER, which will NOT allow the evap to freeze regardless of anything else. IF your evap indeed iced up, you have a operational problem with the Freeze Thermister. FIX your problems. Don't post that some things are normal because YOU experienced a similar result. Doug