Honeywell WV4262B Installation Instructions Manual page 11

SLIDE SWITCH TO THE ON POSITION,
TURN THE SET KNOB TO HOT;
DAMPER SHOULD OPEN
YES
DAMPER END SWITCH SHOULD
CLOSE
YES
PILOT VALVE SHOULD OPEN AND
IGNITION SOURCE SHOULD START
SPARKING UNTIL PILOT FLAME IS LIT
YES
MAIN VALVE SHOULD OPEN AND
MAIN FLAME SHOULD BE LIT BY
PILOT FLAME
YES
SYSTEM OK
Fig. 8. Troubleshooting without status LED.
WV4262B POWERED DAMPER WATER HEATER CONTROLS
CHECK:
NO
TANK TEMPERATURE IS AT OR CLOSE TO HOT SET POINT
WIRING OF LINE VOLTAGE SUPPLY
TEMPERATURE SENSOR AND FLAMMABLE VAPOR
SENSOR AND THEIR CONNECTIONS
WIRING FOR DAMPER AND DAMPER END SWITCH
CHECK:
NO
DAMPER END SWITCH INCLUDING WIRING
CHECK:
INLET PRESSURE
NO
MAKE SURE AIR IS BLED OUT OF SYSTEM
CLOGGED PILOT ORIFICE
GAS LEAK IN PILOT TUBING CONNECTIONS
WIRING TO THE FLAME/SPARK ELECTRODE
FLAME/SPARK ELECTRODE IS IN THE CORRECT
POSITION RELATIVE TO THE PILOT BURNER
CHECK:
NO
INLET PRESSURE
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