Honeywell PDX265T*F(BN,SX,CX), PDX450S*F(BN,SX) Gas Control Removal From Thermal Well, PDX Series

PDX Series

PDX SERVICE PROCEDURE VI

Gas Control & Thermal Well Testing

and Replacement

Gas Control & Thermal Well Removal From Water Heater

		Gas Control
Step 1.	Position gas valve power switch to the “OFF”	Thermal
	position and Unplug Heater from power supply.	Well

Step 2. Drain heater to a point below the gas control level.

Step 3. Turn off gas supply to water heater and disconnect gas piping from gas control.

Step 4. Disconnect wire harnesses and burner assembly from gas control.

Step 5. Remove gas control & thermal well by rotating flats of Thermal Well counter clockwise (1-5/16"wrench).

Gas Control Removal From Thermal Well

Follow the steps below allows removal gas control from thermal well without removing thermal well from tank.

Step 1. Position gas control power switch to the “OFF” position and unplug water heater from power supply. Step 2. Turn off gas supply to water heater and disconnect gas piping from gas control.

Step 3. Disconnect wire harnesses & burner assembly from gas control.

Step 4. Using gas control service tool (239-45991-00) available from your BWC parts supplier, Insert tool into back of gas control (see photos below)

View from back of

control for clarity

Insert tool from

back of control Service tool shown

inserted in to back

of control

Step 5. Pivot tool towards heater as far as possible (see photo below). Lift straight up on gas control. The control should move about 1/8". Hold control in position and remove tool. Lift straight up on control to remove completely from Thermal Well.

With service tool inserted, pivot tool back towards water heater as far as possible. Lift straight up on control, control will move 1/8". Remove tool and continue to lift straight up on control to remove from Thermal Well.

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