> In the small space of an RV the water vapor from humans, pets, cooking,
> bathing and going in and out a lot and losing your cool air can cause a new
> unit in perfect condition to
> freeze up once temperatures get high enough it no longer cycles on the
> thermostat which allows the condensate to drain off.
Actually, the unit does not need to cycle to remove the evaporator coil
condensate. This is an ongoing thing because of the temperature of the
evaporator coil. The humidity will condense on the coil and drain
continuously. Of course if it has frozen, switching to fan only for a
while is the only way to melt off all of the ice.
One thing I forgot to mention is that a dirty coil will freeze up easily
too. When was the last time that evaporator coil was cleaned? The make
special spray cleaner for just that job.
And another cause of freezing is having the fan on low. You want a lot
of air moving through the unit, so keep the fan on high. Get all of the
cool from the evaporator coil as fast as you can.
Also, take a good look and make sure that the unit is not sucking it's
own just-cooled air back in. Make sure the input and output louvers are
not sucking the cold air right back in. If they are rig something to
stop that.
Rick Kunath
WBCCI #3060
This site is not sponsored by or affiliated in any way with Airstream Inc, Thor Inc, or the WBCCI.
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