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Randall
Randall, RVIA Certification
Category: RV
Satisfied Customers: 10568
Experience:  RVDA/RVIA Master Certified Technician with many years experience.
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Dometic thermostat has e1 on it, 2015 Sanibel 42ft. 3901, I

Customer Question

dometic thermostat has e1 on it
JA: What's the make/model/year of your RV?
Customer: 2015 Sanibel 42ft.
JA: What is the model of your '15 RV?
Customer: 3901
JA: Are you fixing your RV yourself? What have you tried so far?
Customer: I reset the thermostat and it has zone 1 and 4. I use 1 and 2 only
JA: Anything else you want the mechanic to know before I connect you?
Customer: how do I get zone 1 & 2 working
Submitted: 6 months ago.
Category: RV
Expert:  Randall replied 6 months ago.

Hi! My name is ***** ***** I can assist you with this. I may need some additional information from you first in order to give a complete answer.

Expert:  Randall replied 6 months ago.

Is this a Dometic Comfort Control II thermostat? If so, this is a communication fault. Try unplugging the cable from the thermostat and check it for moisture and then if dry, plug it back in again and try to reset it. If you don't have that instructions please let me know. All follow ups are included in our fee.

Customer: replied 6 months ago.
I did that I can try it again
Expert:  Randall replied 6 months ago.

Do it on the A/C side as well.

Customer: replied 6 months ago.
it has a front AC and rear AC
Expert:  Randall replied 6 months ago.

Do the cables on those as well.

Customer: replied 6 months ago.
Can't get to those cables
Expert:  Randall replied 6 months ago.

You may have to call in a mobile tech for some assistance then. He can run some tests for you and see if it is the control box or cable that is the problem.