Service Manual

91
Service Procedure X
Transformer Replacement
Transformer Replacement Procedure
1. Position main power switch to OFF.
2. Disconnect (unplug) water heater from
120 volt power source.
3. Unlatch and remove the surround cover from the top of the water heater.
4. Disconnect primary leads (black & white) and
secondary leads (blue & yellow) from the
control board (connectors are different sizes to
prevent interchanging).
5. Remove the 2 screws (short Phillips
screwdriver) holding the transformer in place
and remove transformer from control panel
(see image at right).
6. Install new transformer and secure in place
with screws from Step 5.
7. Reconnect primary and secondary wires to the
board (controls are different sizes to prevent
interchanging).
8. Restore 120 volt power supply to the water
heater and confirm proper operation following
the lighting instructions on the lighting
instruction label or the lighting instructions
located in the Installation and Operating
Manual.
9. Replace the surround cover on the top of the
water heater.
WARNING
120 volt potential exposure. Isolate the
appliance and reconfirm power is
disconnected using a multimeter.
Secondary Lead Wires
and connector
Primary Lead Wires
and connector
Remove Screws
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