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gene, RV Mechanic
Category: RV
Satisfied Customers: 1100
Experience:  28 yrs exp in the industry
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Ac fan keeps running when thermostat swith is in cool off

Customer Question

ac fan keeps running when thermostat swith is in cool off posisition. This is a Dometic thermostat
JA: Have you checked the Freon level? Have you checked the hoses?
Customer: yes to both
JA: What is the model/year of your RV?
Customer: the RV is a 2011 Four winds Citation 24S
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: I am trying to determine if its the thermostat and yes I can fix that
JA: Anything else you think the mechanic should know?
Customer: thermostat in off posisition the compresser does not run just the fan
Submitted: 1 year ago.
Category: RV
Expert:  Michael Reush replied 1 year ago.

Hi, if the fan continues to run with the thermostat off, this leans towards a relay on the control board of the airconditioner sticking closed. When you run the ac with the thermostat on, does it cool properly, and does the compressor cycle? thanks