Bradford-White Corp D)W275T*(BN, C(S, CX service manual Honeywell GAS Control & Thermowell Removal

SERVICE PROCEDURE AG-III

Honeywell Gas Control and Thermowell

Replacement

HONEYWELL GAS CONTROL & THERMOWELL REMOVAL

Step 1. Turn the gas control knob to the “OFF” position.

Step 2. Turn off water supply and drain water heater completely.

Step 3. Turn off and disconnect gas supply to control

Step 4. Disconnect wire harness and burner assembly from the gas control.

Gas Control

Thermowell

Figure 31

Step 5. Remove gas control and thermowell by rotating flats of the thermowell counter clockwise.

HONEYWELL GAS CONTROL REMOVAL FROM THERMOWELL

NOTE; Following the instructions below allows the removal of the gas control from the thermowell without removing the thermowell from the tank.

Step 1. Turn the gas control knob to the “OFF” position.

Step 2. Turn off and disconnect gas supply piping to the gas control.

Step 3. Disconnect wire harnesses and burner assembly from the gas control.

Step 4. Using the gas control service tool (part number 239-45991-00) available from your Bradford White parts supplier, insert tool into the back of the gas control (see Figure 32 & 33).

View from back of

Insert tool intogas control for clarity back of gas

control

Figure 32 Figure 33

Step 5. Pivot service tool towards water heater as far as possible (see Figure 34). Lift up straight on gas control. The gas control should move about 1/8”. Hold gas control in position and remove tool. Lift straight up on the gas control to remove completely from the thermowell.

Figure 34

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