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Car Forum / Driving, Maintenance, Tuning / RVs / June 2006A/C clitch in RV
This past weekend while dry camping in my class B/C Concorde by Coachman, my A/C wouldn't work (I ran the generator to power the roof A/C). The TV had power, the microwave had power and the compressor on the A/C unit would run but the fan wouldn't. I checked out everything I could. The thermostat seemed to be working properly, the circuit breakers were all set, the fuses (even the little 3 amp on the A/C control board) were good. Wiring seemed good. It was too hot to get on the roof and expose the fan motor so I waited until I got home. When I got home I plugged the RV into shore power and everything worked fine. Then I disconnected the shore power and started the generator and the A/C worked! Anybody else have this problem? Was it a stuck/faulty relay somewhere? Loose wire? Thanks in advance. Hank <~~~can't fix it if it isn't broke > This past weekend while dry camping in my class B/C Concorde by > Coachman, my A/C wouldn't work (I ran the generator to power the roof [quoted text clipped - 17 lines] > > Hank <~~~can't fix it if it isn't broke That's typical of a stuck fan shaft. The bearings at each end of the motor are typically "lifetime lubricated" porous bronze sleeves wrapped in felt wicking saturated with oil. When the wicking runs dry, the shaft sticks in the bore. Some sleeve-bearing motors have removable plastic plugs that can be removed and 10 drops of 20-weight oil added. If there are no plugs, a good method is to gently drill a 5/64" hole through the bearing housing at the center of the bearing until felt fibers appear in the shavings. Typically, these holes can be drilled under the clamps that hold the end bells to the motor mount. Oiling the shaft and hoping oil seeps into the bearing surfaces is a very short-term solution. Rick > This past weekend while dry camping in my class B/C Concorde by > Coachman, my A/C wouldn't work (I ran the generator to power the roof [quoted text clipped - 17 lines] > > Hank <~~~can't fix it if it isn't broke Only one common denominator that I can think of is the hi/lo fan speed switch. Could have been stuck in the center position. With that said, I am unable to duplicate that problem with the thermostat on my Duo-Therm.  SignatureBILL P. Just Me & DOG Sometimes the fan will stick and all it needs is a spin (help to get it started) it would be nice if there were some easy way to grease or oil the fan motor, but on mine there is no zerk and its a sealed bearing. > This past weekend while dry camping in my class B/C Concorde by > Coachman, my A/C wouldn't work (I ran the generator to power the roof [quoted text clipped - 17 lines] > > Hank <~~~can't fix it if it isn't broke |
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