SECTION FOUR – Routine Maintenance and Professional Servicing
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The T ransformer is located on the back of the Control
Box.
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The T ransformer provides low-voltage (24VAC) power
to the Heater Control Board, Ignition Module, and Gas
Valve.
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1. Turn off all power to the heater.
2. Unbolt and remove the Upper Left and Upper Right
Jackets.
3. Disconnect the electrical connection to the
Transformer .
4. Remove Transformer and replace with a new one.
5. Reverse steps 1 through 4 above to complete
installation.
4-3
Transformer
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::
::
Hazardous Voltage. Can shock, burn, or
kill. Disconnect all power to the heater before attempt-
ing to service or remove the Operating Control
Assembly.
P/N 42001-0057S
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