Hot water heater too hot
I was getting too much hot water in comparison to last season. I’ve changed the thermostats, and made sure the air pocket was replaced. Still heating too hot. I used to shower with only the hot wat...
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Here is the test procedures for circuit board PER ATWOOD
Atwood potted circuit boards can be tested using a multi-meter.
This test must be performed with the circuit board removed, and the meter set to the ohms scale.
This will check the continuity of all tracks on the harness connection of the board.
The following steps should be used to test each track.
A. Cross leads of meter to ensure it is registering continuity.
B.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.
C. TO TEST LAMP TRACK:
Place negative lead of the multi-meter to ground (green wire) track of edge connection and positive lead of the multi-meter to lamp (blue wire) track of edge connection.
If no continuity, this indicates blown lamp track.
Circuit board will still fire unit but lamp light will not come on. This is caused by a short in the blue wire between the unit and the switch.
Wiring must be corrected before the board is replaced.
D.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.
Simple...quick tests
So before doing anything else.....test the board
Atwood potted circuit boards can be tested using a multi-meter.
This test must be performed with the circuit board removed, and the meter set to the ohms scale.
This will check the continuity of all tracks on the harness connection of the board.
The following steps should be used to test each track.
A. Cross leads of meter to ensure it is registering continuity.
B.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.
C. TO TEST LAMP TRACK:
Place negative lead of the multi-meter to ground (green wire) track of edge connection and positive lead of the multi-meter to lamp (blue wire) track of edge connection.
If no continuity, this indicates blown lamp track.
Circuit board will still fire unit but lamp light will not come on. This is caused by a short in the blue wire between the unit and the switch.
Wiring must be corrected before the board is replaced.
D.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.
Simple...quick tests
So before doing anything else.....test the board
