Hot Water Heater Just stopped working
Ok, so I am not what you would consider a newbie as I have been RVing in one form or another for about 40 years. I often do my own troubleshooting and repair for all things mechanical. I have even cha...
Forum Discussion
Got to have 12V DC going to the ON/OFF switches (electric & propane)
Then that 12V DC goes to the circuit board....White wire/electric and Orange wire/propane
Then 12V DC comes out of circuit board (Brown wire) ...goes thru a thermal Fuse then to t-stat
From t-stat back to circuit board (Brown wire) then out of circuit board to ECO and gas valve (RED wire)........ECO circuit has voltage on electric or propane.
Electric is just milivolt and propane is full 12V
BUT that 'thermal fuse' (inside the clear tubing...connected between circuit board and t-stat) is a ONE time fuse..it blows and shuts off ALL DC to rest of circuit so NO electric or propane function
Thermal fuse blows at 190*F ....due to blow back of propane flame out of combustion chamber
I doubt your issue is the t-stat........bet it is a blown thermal fuse
Just unplug it and plug brown wire into t-stat and try water heater.
Could be obstructed combustion chamber....spider webs, nesting OR thermal fuse just too close to flame.
If WH runs W/O thermal fuse.......you can operate it that way until you get a new thermal fuse.
If not thermal fuse..bypass the t-stat and check operation..then replace t-stat (t-stat/eco come as a set with a new insulating pad)
But I will be surprised if its the t-stat :B
On Edit:
Here is a colored version of the wiring diagram for your Atwood
Then that 12V DC goes to the circuit board....White wire/electric and Orange wire/propane
Then 12V DC comes out of circuit board (Brown wire) ...goes thru a thermal Fuse then to t-stat
From t-stat back to circuit board (Brown wire) then out of circuit board to ECO and gas valve (RED wire)........ECO circuit has voltage on electric or propane.
Electric is just milivolt and propane is full 12V
BUT that 'thermal fuse' (inside the clear tubing...connected between circuit board and t-stat) is a ONE time fuse..it blows and shuts off ALL DC to rest of circuit so NO electric or propane function
Thermal fuse blows at 190*F ....due to blow back of propane flame out of combustion chamber
I doubt your issue is the t-stat........bet it is a blown thermal fuse
Just unplug it and plug brown wire into t-stat and try water heater.
Could be obstructed combustion chamber....spider webs, nesting OR thermal fuse just too close to flame.
If WH runs W/O thermal fuse.......you can operate it that way until you get a new thermal fuse.
If not thermal fuse..bypass the t-stat and check operation..then replace t-stat (t-stat/eco come as a set with a new insulating pad)
But I will be surprised if its the t-stat :B
On Edit:
Here is a colored version of the wiring diagram for your Atwood
