Bradford White D-4-504S6FSX - Manual (Page 21)

Page 21
Damper Removal & Installation (cont’d)
Step 13.
Reconnect the cord sets from Step 5.
Step 14. Plug the water heater into the wall outlet.
Step 15. Move the gas control power switch to the “ON” position.
Step 16. Verify proper damper operation.
Thermal Well Testing
Follow the procedure, below, if the water heater gas control has gone into a ECO
lockout (4 flash, 3 second pause). Reset the gas control by rotating the setpoint knob
to the minimum setting for at least 6 seconds before returning to the desired water
temperature setting.
Step 1. Unplug the thermal well connector from the gas
control.
Step 2. With a multi-meter set to the ohms setting,
measure the resistance between the middle and right side wires.
Step 3. With a multi-meter set to the ohms setting,
measure the resistance between the middle and left side wires.
Thermal Well Testing
CAUTION
Do not use standard multi-meter probes for this testing. Doing so will damage the con-
nector. Use special pin type electronic probes or small diameter wire pins inserted into
connector.
Thermal well connector
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