General Boards > Technical Support

No A/C Thermostats

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Bobby Kirk:
front is 5 button  unit in bed room has been replaced couple years ago.  It has new style stat..

Fred Brooks:
   Bobby,
  As I recall to the best of my knowledge, the front T-stat is the source of power that feeds the other t-stat. The 5 button t-stat is obsolete. If you replace it with the newer 10 button comfort control the issue that you will run into is if the front air conditioner is the original Dometic model, the PC board will not respond to the t-stat. Remove the 5-button t-stat cover and check the 2amp fuse first. If that is good, check the 5amp fuse mounted on the PC board located inside the front air conditioner by removing the A/C shroud and accessing the PC controls. While you are up there get the model number of the air conditioner. Please advise. Fred

Bobby Kirk:
Thanks for info. the rear air has new stat as i had that unit replaced couple yrs ago.Will take me few days to check out
everything. i will let u know the results. Thanks again


BK

Bobby Kirk:
Hello Fred  finally traced down problem with stats   The 5 button was blowing 10A fuse  I had a spare stat. That solved problem 
the fuse was on wire marked CKT-4 PNC OR L.  The model #630516.321  Ser #50135588.
Do u know if this unit is compatible with 10 button stat   if not will try to find 5 button for spare.  thanks so much for your help


BK

Bobby Kirk:
Fred any idea where to get 5 button stat 

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