STANDARD OVEN PILOT SAFETY VALVE CHECK, REPLACEMENT

STANDARD OVEN PILOT SAFETY VALVE CHECK

NOTE: A quick check of the following conditions and symptoms will assist in verifying that the pilot safety valve is properly functioning.

TOOLS REQUIRED: Flow meter, millivolt tester.

If the unit pilot is “ON” but the unit is not heating, check the gas flow from the thermostat to the safety valve, using a flow meter (Fig. 36). (Flow meter kits are available from Vulcan-Hart Service Parts Depots under Part No. 495.)

FOR PROPER USAGE OF FLOW METER, REFER TO THE MANUFACTURER’S INSTRUCTIONS PROVIDED IN THE FLOW METER KIT.

Fig. 36

The meter should show signs of massive flow. If flow is not found, replace the thermostat and recheck gas flow.

If meter does show signs of gas flow, then perform the following checks on the safety valve. If there is an obvious problem with the pilot safety valve, the unit will not heat and pilot outage will occur.

1.Fold down lower kick panel.

2.Perform the pilot lighting procedures (see Page 13).

3.If pilot will not stay lit, check pilot for clogging.

4.If the unit still will not stay lit, using a volt meter, check the millivolt reading from the valve thermocouple connection while holding the pilot button in the “ON” position (Fig. 37).

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Vulcan-Hart ML-52950, ML-52953 Standard Oven Pilot Safety Valve CHECK, Replacement, Standard Oven Pilot Safety Valve Check

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