Roof top ac in tooter home iceing over.

robertglines1 · July 29, 2011, 08:07:26 AM

Fan on high. Very humid. filter clean. coil clean.

?? Bob tried search engine $:-\$

TomC · July 29, 2011, 08:09:42 AM

Could be a bit low on freon. Try to set the thermostat higher-then gradually lower the temp down to what you want. Good Luck, TomC

robertglines1 · July 29, 2011, 08:18:21 AM

Will ck when we get it home. Now Andy will just have to move in bus with us.Will try thermostat remedy. thanks

papatony · July 29, 2011, 11:13:08 AM

Robert you are low on freon, you will have to let it thaw out before you can recharge it . uses R-22 same As house freon.

larryh · July 29, 2011, 11:54:41 AM

How can you add freon mine has no connections for hoses to attach

robertglines1 · July 29, 2011, 12:01:47 PM

In this case it has a service valve (schrader) soldered into line. Has been serviced before we got it; will look for leak and ck from there. to install you drill 1/8 inch hole in side line and silver solder assembly in place. This gives you future access to system to pump down etc.

Zeroclearance · July 29, 2011, 01:14:26 PM

Robert from what I have read, icing can be from restricted airflow or dirty core. The last thing to check is the freon charge.

demodriver · July 29, 2011, 03:48:19 PM

Some regular degreaser solevant works good to clean them if that is the case. I would bet that the coolant level is low like others have said.

Make sneak into a car wash with the unit and give her a good bath.

Where abouts are you Bob?

robertglines1 · July 29, 2011, 06:11:29 PM

Vandburg co Fair---where I met you Eric

demodriver · July 29, 2011, 06:35:24 PM

Ya I thought about that after I looked on the derby forum and they was talking about the fair derby there.

Eric

Barn Owl · July 29, 2011, 09:26:37 PM

Quote from: larryh on July 29, 2011, 11:54:41 AM
How can you add freon mine has no connections for hoses to attach

When I took possession of my bus one A/C was too low to even start. I added a refrigerant line tap valve, and using the manufacture's recommended pressure I recharged it. The tap valve was supposed to be a quick and temporary fix just to see if the A/C would work, but five years later it is still working great. For less than $20 it sure beats having to solder in a valve and pulling a vacuum etc.

Linky: Refrigerant Line Tap Valve

JohnEd · July 30, 2011, 12:47:40 AM

OOOOOWWWWW! Thank you Barn Owl. No telling how many tens of thousands of repair money you saved the board with that one. Really.....great!

Thanks,

John

luvrbus · July 30, 2011, 10:46:26 AM

If your thermostat sensor has been relocated on the unit they will freeze because they lose their cycling feature first thing I check

good luck