Originally Posted by gunny2007
Purchased a 77 AS and used it for the first time this weekend. Found the fan not turning after a day of AC use. Water started to seep through the internal shroud and follow the trim piece inside the trailer. I pulled the shroud off/cracked it due to rusted bolts with nothing to grab on to.
and found the compressor to be iced up. AC seems to be original and need to get item number/model/etc..
After researching this site... I know to try and clear the drain line near the tires that may eliminate the leaking problem inside. I will check the level of the AS to insure proper alignment.. I know it is a little off at the moment and may be leaning away from the drain hole or its plugged.
In my limited ac experience.. freezing may be caused by low freon, dirty fins/coils, or blocked air vents on the inside. Is there anything else I should be aware of or check while I have the AC accessible?
The fan motor also would not start spinning when I turned the unit on. Gently taped the blades.. to give it a little help and kicked butt turning after that.. A little oil near the motor shaft and I hope all is well with the fan motor. I have also read about capacitors? Can this potentially be a problem/cause for the fan motor not initiating?
Lastly, I plan on putting freon R-22 into the unit to help eliviate the icing.
Can anyone give me detailed steps on how this is done. Compressor running /not running. Is there more than one port that can be attatched to the freon. I read something about a vaccum line seen from the rear of the ac unit. (is this where I should connect?)
Thanks to all in advance and will post photos of the renovations recently made. (Antique heart pine floors throughout, lots of cleaning...) frame repair.
Eternal thanks to all veterans out there..
Instructions to recharge the AC, are easy.
But, for what brand AC and model #.
Assuming that's it's the original, is not wise.
Recharging will require a set oif AC gauges, and knowledge of the ambient temperature when refilling is an absolute must.
How much pressure depends on the ambient temperature at the time of refilling.
If it's the original AC, there is a port for the low side.
Caution. If the unit needs freon, then it has a leak.
Locating and correcting the leak, must be done prior to recharging.
If the leak is in the tubing, you will have to drain the freon before you can fix the leak.
Then once you drain the freon, you may have to pull a vacuum on the system, down to at least 29 inches, so that you will remove any moisture
that may have entered the system. Moisture can enter the system very fast.