ac froze up when fan on low speed.
Exactly twice my a/c has frozen up.Once last year and just this weekend. Both times it was very hot and humid and the unit ran all day trying to keep up and at some point the fan speed was set to low...
Forum Discussion
MrWizard wrote:Very few RV AC units have roof mounted controls. IF you have roof mounted controls, you MUST leave it on Hi Cool in high ambient and hi humidity conditions to prevent freeze up. MOST RV units have a wall tstat and IF they have a wall tstat, they have a freeze sensor mounted in the evap coil. If installed correctly and functioning, the AC can NEVER freeze up from any parameter. So, if the OP has a wall tstat, he needs to check and verify the freeze sensor is indeed in the evap coil. Doug
i would say the Majority of Rv's ever MGF and on the road have the controls on the A/C units
yes most new middle and high end RV's of "CURRENT" mfg have t-stats on the wall for a/c and heat
don't know when the change over to wall mount t-stat became predominate in sales of new rv's, but, i don't think the are predominate in totality
only in new mfg for the past few years, maybe the past ten, maybe less
Well, lets look at EXPERIANCE. I have 35 years as an RV Tech, we sell Pop-ups to 500K motorhomes. We service ALL kinds. My statement is dead on. Pop ups will have roof mounted controls. Bare Bones small Trailers will have roof mounted controls. These 2 are in the extreme minority of sales. So, as I stated, the majority of RV's will have wall mounted tstats. Doug
