Atwood water heater

[magaliasram]

I have a 00/01 LaKota with a 10 gallon Atwood/Dometic gas only water heater. There is no spark at the igniter and the gas valve does not open. Checked and replaced Thermal fuse, 12 volts is present at the thermostst and at the brown wire input to the control board. There is no voltage from the control board on the red wire from the control board to the gas valve. Replaced the control board new board has same issue. Did I get a DOA board from Amazon?

[Old-Biscuit]

That 10 gal gas only should be a G10-3E version

Brown wire is 12VDC POS from battery to the on/off switch
From switch to/thru Thermal Fuse -- to/thru T-stat and then to Circuit Board (top pin on the 6 pin connector)

When T-stat closes ,,,12VDC POS goes from Circuit Board via RED wire (4th pin) to/thru ECO --- to Gas Valve solenoids to Ground

12VDC NEG ...Bottom pin to battery Neg and chassis ground
****Check that you have GOOD Grounds

TO TEST POWER TRACK:
Place negative lead of the multi-meter to ground (green wire) track of edge connection and positive lead of the multi-meter to top power (brown wire) track of edge connection.
*If no continuity, board is defective

TO TEST VALVE TRACK:
Place negative lead of the multi-meter to ground (green wire) track of edge connection and positive lead of the multi-meter to valve (red wire) track of edge connection.
*If no continuity, this indicates a blown valve track.


GAS Wiring is top diagram

[Rockinfigs]

Hi old biscuit im out camping n having issues with my water heater ..I've checked the brown wire n I have continuity. I checked the red wire n nothing. You mentioned that was the valve track...what exactly is that..is that on the board?

[Old-Biscuit]

Originally Posted by Rockinfigs

Hi old biscuit im out camping n having issues with my water heater ..I've checked the brown wire n I have continuity. I checked the red wire n nothing. You mentioned that was the valve track...what exactly is that..is that on the board?

Both tests are for the circuit board