Frymaster JCFX, MJCFEC, FMCFEC, KJ3FC, J65X SERVICE PROCEDURES 1.9.1 Pilot/Ignition Failures cont

MASTER JET CF SERIES ATMOSPHERIC GAS FRYERS

CHAPTER 1: SERVICE PROCEDURES

1.9.1 Pilot/Ignition Failures (cont.)

Ignition failures occur when the 24VAC power supply to the gas valve is interrupted, when the gas supply is interrupted, or when the pilot flame is extinguished.

There are three primary reasons for ignition failure, listed in order of probability:

1.Problems related to the gas and/or electrical power supplies.

2.Problems related to the electronic circuits.

3.Problems related to the gas valve.

PROBLEMS RELATED TO THE GAS AND/OR ELECTRICAL POWER SUPPLIES

The main indicators of this are that an entire battery of fryers fails to light and/or there are no indicator lights illuminated on the fryer experiencing ignition failure. Verify that the quick disconnect hose is properly connected, the fryer is plugged in, the main gas supply valve is open,

and the circuit breaker for the fryer electrical supply is not tripped.

PROBLEMS RELATED TO THE ELECTRONIC CIRCUITS

If gas and electrical power are being supplied to the fryer, the next most likely cause of ignition failure is a problem in the 24 VAC circuit of the pilot system. If the fryer is equipped with a Filter Magic II filtration system, first verify that the drain valve is fully closed. (The valve is attached to a microswitch that must be closed for power to reach the gas valve. Often, although the valve handle appears to be in the closed position, the microswitch is still open.) If the valve is fully closed, or the fryer does not have a filtration system, refer to the troubleshooting tables in this chapter.

PROBLEMS RELATED TO THE GAS VALVE

If the problem is not in the 24 VAC circuit of the pilot system, it is most likely in the gas valve itself, but before replacing the gas valve refer to the troubleshooting tables in this chapter.

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