Trouble-Shooting

GENERAL:

The information in this section is intended to assist both the operator and service personnel in locating the general source of problems that may occur with the cooker. Before following any of the procedures given in this section, the operator should be thor- oughly familiar with the operating instructions and the function of all controls that are described in the operating section of this manual. If the problem can- not be readily corrected, the operator should contact the nearest Market Forge service agency for assis- tance.

TROUBLE-SHOOTING GUIDES:

Refer to the trouble-shooting guide for use by ser- vice personnel given on page 12-13.

ELECTRICAL FAULT ISOLATION:

Correction of an electrical failure first requires isola- tion of the fault to a single circuit or component. In most cases, the nature of the failure and its effect upon the operation of the cooker will be sufficient to narrow it down to one or more circuit elements. Re- fer to the isolating electrical faults table on page 14.

ELECTRICALTROUBLE-SHOOTINGPROCEDURES: Before performing the trouble-shooting procedures in this section, the serviceman must be familiar with the function of all controls as described in the oper- ating section as well as with the principles of opera- tion section in this manual.

GENERAL TROUBLE-SHOOTING GUIDE

PROBABLE CAUSE	REMEDY
1. INDICATOR LIGHT FAILS TO LIGHT WITH TIMER SET.
A. Power to Cooker Off.	Located external circuit breaker for incoming power and place in ON position.
B. Door interlock switch contact not closed.	Shut cooker door to close switch contacts. Check alignment of door with switch.
C. Door interlock switch faulty.	Replace switch. (Refer to door interlock switch section on page 15)
D. Indicator light burned out.	Replace light.
E. Faulty timer contacts.	Replace timer. (Refer to 60 minute timer section on page 13)
F. Faulty wiring.	Inspect condition of wire and tightness of all connections. Correct as needed.
2. STEAM FAILS TO ENTER COMPARTMENT WITH INDICATOR LIGHT ON.
A. Faulty steam solenoid valve.	Replace valve. (Refer to steam solenoid valve section on page 15)
B. Faulty wiring.	Inspect condition of wire and tightness of all connections. Correct as needed.
3. STEAM ENTERS COMPARTMENT CONTINUOUSLY. TIMER DIAL NOT TURNING.
A. Constant steam position.	Move knob to timing location.
B. Faulty thermostatic switch.	Replace switch. (Refer to cooking compartment thermostatic switch section on page 15)
C. Faulty timer motor.	Replace switch. (Refer to 60 minute timer section on page 13)
D. Faulty steam solenoid valve.	Replace switch. (Refer to steam solenoid valve section on page 15)
E. Faulty wiring.	Inspect condition of wire and tightness of all connections. Correct as needed.
4. STEAM CONTINUES TO FLOW INTO COMPARTMENT AND/OR BUZZER FAILS TO SOUND AT END OF
TIMER SETTING.
A. Timer contacts faulty.	Replace timer. (Refer to 60 minute timer section on page 13)
B. Buzzer faulty.	Replace buzzer. (Refer to cooking compartment thermostatic switch section on page 15)
C. Faulty wiring.	Inspect condition of wire and tightness of all connections. Correct as needed.
5. STEAM FLOWS CONTINUOUSLY FROM BOILER (OR DIRECT CONNECTED STEAM CONTROL) DRAIN
LINE WITH COOKER IN OPERATION.
A. Cold water not connected.	Turn on external shut-off valve.
B. Faulty thermostat.	Replace thermostat. (Refer to cooking compartment thermostatic switch section on
	page 15)
C. Faulty cold water solenoid.	Replace valve.
D. Faulty wiring.	Inspect condition of wire and tightness of all connections. Correct as needed.