Guardian PowerVent Training Manual SVC900; Rev 1
Page 52
RESET PROCEDURES FOR WHITE RODGERS CONTROL
1. Inspect the installation/location for the presence of materials that could produce
flammable vapors (ex: gasoline, cleaning compounds, paints/solvents) or the presence of
bleach or ammonia. Remove any of these materials and thoroughly ventilate the area
where water heater is located.
2. Interpret error code. The White Rodgers control is able to tell the difference between a
disconnected sensor and a Flammable Vapor incident. The only time you need to apply
the reset procedure is with Error 15.
3. Turn off blower power switch on water heater and unplug power cord.
4. Disconnect flammable vapor sensor wire connector from control valve and measure
electrical resistance between connector test points #2 and #3 (black wires).
5. Sensor resistance should be above 9k ohms and below 45k ohms. If the sensor is within
this range, proceed to Step 7.
6. If the sensor resistance is less than 9k ohms or greater than 45k ohms, replace the sensor
assembly. Call technical service for the sensor kit.
7. Re-install the sensor wire Molex connector to the control valve and follow the reset
instructions on the next page.
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