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gene, RV Mechanic
Category: RV
Satisfied Customers: 1100
Experience:  28 yrs exp in the industry
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We have a Coleman Mach RV Comfort.20 thermostat in our 2002

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We have a Coleman Mach RV Comfort.20 thermostat in our 2002 Discovery motorhome.
It does not cycle and sometimes the screen is blank. Can this thermostat be repaired or checked out somewhere?
Hi,Is this a 4 or 5 button control thermostat,it is a comfort control correct?
Customer: replied 6 years ago.

No it does not have4 or 5 buttons. The screen has arrows that go up & down.

Cool Off Heat switch - Mode Zone switch

Part No. AK7807H

Date Code 0214


Here is a link on the Coleman t-stats,there is also a trouble shooting guide in it as well,As far as I know there is no where to get it tested,you can call Coleman and I ask,but I imagine they will tell you to replace it.The main thing to check is for 12 volts to the t-stat when the display is blank,if there is power to it then the t-stat will have to be replaced.
Customer: replied 6 years ago.
Do you have a Phone # XXXXX Coleman? Where could I find it?
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