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gene, RV Mechanic
Category: RV
Satisfied Customers: 1100
Experience:  28 yrs exp in the industry
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1997 Duo Therm does not come on, same with heat. New

Customer Question

1997 Duo Therm does not come on, same with heat. New thermastat and new control board in the AC unit
JA: Have you checked the coolant level? Has there been any leaking from the hoses?
Customer: There are no hoses, this is the roof unit on a 5th wheel
JA: What is the model of your '97 RV?
Customer: King of the Road MArquis
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: Yes, and I changed the StairMaster and the circuit board as mentioned above
JA: Anything else you think the mechanic should know?
Customer: No, not at the moment
Submitted: 1 year ago.
Category: RV
Expert:  Randall replied 1 year ago.

What is the model number off your A/C and what are the part numbers you just installed or was this a kit? If so, that part number. Get back to me with this and I can help you sort this out.

Customer: replied 1 year ago.
The circuit board is(###) ###-####
The unit is the 57915 is the unit
Expert:  Randall replied 1 year ago.

What was the part number of the new thermostat? And was that the same board as you had before?

Customer: replied 1 year ago.
Same part number and same OEM thermostat.
Expert:  Randall replied 1 year ago.

Let me check when I get to the shop and get back to you shortly.........

Customer: replied 1 year ago.
I now have the compressor coming on but no fan on auto or on, nothing on the heat side either.
Expert:  Randall replied 1 year ago.

I see I missed their call back yesterday.........let me check first thing when I get into the shop in about an hour. I will get back to you this morning.

Expert:  Randall replied 1 year ago.

Is this being used with a 4 button Comfort Control thermostat? If not, which model thermostat did you buy?

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