Service Manual

40
40
120 volt potential exposure. Isolate the
appliance and reconfirm power is
disconnected using a multi-meter.
WARNING
Service Procedure VIII:
Ignition Module/Control Board Replacement
Control Board Replacement
1. Position main power switch to OFF.
2. Disconnect (unplug) water heater from 120 volt power source.
3. Unlatch and remove top surround cover from the top of the
water heater.
4. Locate the control board.
5. Carefully disconnect all wire connections from the control board.
Note: It may be necessary to identify wires for proper re-connection.
6. Depress the plastic tabs on the bottom side of the control board first.
7. Tilt the control panel and slide control hook tabs from slots in the control panel (see image below).
8. Replace the control board and all wire connections.
9. Restore 120 volt power supply to water heater and confirm proper operation following the lighting
instructions on the lighting instruction label, or the lighting instruction located in the Installation and
Operating Instruction Manual.
10. Replace the surround cover on the top of the water heater.
Unclip here
These two connections may
not be on all controls
Control Board