TRANSFORMER REMOVAL / REPLACEMENT
Important: Use only factory authorized replacement parts. If you lack the necessary skills to properly perform the installation, you should not proceed, but get help from a qualified service technician.
Tools required: Ratchet with 5/16” Socket or 5/16” Nut Driver, Phillips Head Screwdriver.
Removing the Transformer:
1.Set the gas control valve/thermostat to its lowest setting by pressing the “COOLER” and “HOTTER” buttons together at the same time holding for 1 second. Then press the “COOLER” button to the lowest setting (Figure 40).
2.Turn gas control switch to the “OFF” position (located right side of the gas control valve/ thermostat) and turn off the gas supply to the unit (Figure 41).
3.Disconnect the electric connection by unplugging the transformer from the wall outlet (Figure 41).
4.Remove the manifold cover outer door from the heater by depressing on the lower portion and pulling outward.
5.Unplug the power supply transformer connector from the bottom of the gas control valve by pressing the snap connector and pulling downward (Figure 42). (NOTE: The transformer is located inside the transformer box adjacent to the gas control/thermostat valve).
6.Using a phillips head screwdriver, remove the transformer box from the side of the water heater by removing the single screw securing it to the water heater’s side (Note: keep screw in a safe place for reinstalling later).
7.Using a phillips head screwdriver remove the ground screw from the inside of the transformer box (Note: save the screw for reinstallation later) (see Figure 43).
8.Take note of the position of the transformer, use a 5/16” nut driver or a ratchet with a 5/16” socket to remove the 2 hex head screws on the front of the transformer box (Note: save the screws for reinstallation later) (see Figure 43).
9.Unplug the two flag terminal electrical connections on the transformer and pull the wiring and connector through the wire protector (Figure 43).
Figure 42.
GAS CONTROLGas Control
VALVE/THERMOSTATValve/Thermostat
POWERGasSUPPLYValve
TRANSFORMERWire Connector
CONNECTOR
Figure 40.
HOTTER 
COOLER
Electronic Control Display
Figure 41.
ON
OFF
ON/OFF
SWITCH
|
| UNPLUGGED | |
Figure 43. |
|
| |
| ELECTRICAL | GROUND | |
| FLAG TERMINALS | SCREW | |
TRANSFORMER |
|
| |
BOX |
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| |
|
| TRANSFORMER | |
HEX HEAD |
| POWER SUPPLY | |
| TRANSFORMER | ||
SCREWS | WIRE | ||
CONNECTOR | |||
| PROTECTOR | ||
|
| ||
POWER SUPPLY |
|
| |
TRANSFORMER |
|
| |
CONNECTOR |
| ELECTRICAL | |
|
| ||
|
| FLAG | |
GROUND |
| TERMINALS | |
SCREW |
|
| |
WIRE |
|
| |
PROTECTOR |
| TRANSFORMER | |
|
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