In Store Troubleshooting Guide - Garland MWEFH-9501 Operation Manual

CONTROLLER DISPLAYS EEPROM
CORRUPT
PLATEN WILL NOT COME DOWN
CONTROLLER DISPLAYS
"TOO HOT"
CONTROLLER DISPLAYS "MOTOR
OVERCURRENT"
CONTROLLER DISPLAYS "FAULT
ELEMENT / SHORTED PROBE"
CONTROLLER DISPLAYS "OPEN
PROBE"
TROUBLESHOOTING

In Store Troubleshooting Guide

1. NEW VERSION EPROM CHIP?
2. FAULTY EPROM CHIP OR
FAULTY CONTROLLER.
1. GRILL HAS NOT REACHED
SET TEMPERATURE YET.
2. UPPER PLATEN LOCKING PIN
IS ENGAGED
3. PRESS THE GREEN
PUSHBUTTON, AND THEN THE
BLACK PUSHBUTTON. DO
THEY BEEP SEPARATELY?
1. CURRENT SELECTED MENU
ITEM REQUIRES A LOWER
SET POINT TEMPERATURE
THEN THE ONE PREVIOUSLY
SELECTED.
2. ONE OR MORE HEAT ZONES
HAVE EXCEEDED THE SET
POINT TEMPERATURES BY
79°F (27°C).
3. TEMPERATURE IS CONTINU-
ING TO RISE?
1. TURN MAIN POWER SWITCH
OFF, WAIT 5 SECONDS, AND
TURN BACK ON TO REINITIAL-
IZE CONTROLLERS.
2. PROBLEM HAPPENS ONLY IN
THE MORNING?
1. ARE ALL LED LIGHTS FLASH-
ING RED, BOTH SIDES OR
EITHER SIDES?
2. 1 – 3 ZONES FLASHING RED?
1. DURING INITIALIZATION?
2. DURING COOKING
36
1. RE-INITIALIZE UNIT
2. CALL FOR SERVICE
1. ALLOW GRILL TO REACH SET
TEMPERATURE.
2. PULL OUT UPPER PLATEN
LOCKING PIN.
3. EITHER YES OR NO, CALL
FOR SERVICE
1. ALLOW GRILL TO COOL
DOWN TO CURRENT MENU
ITEMS SET POINT TEMPERA-
TURE.
2. NOTE HEAT ZONE (RED
LED LIGHT) AND CALL FOR
SERVICE.
3. CALL FOR SERVICE
1. POSSIBLE FREQUENCY
INTERRUPTION. MONITOR
FOR REPETITIVE ERROR.
2. POSSIBLE PREVENTATIVE
MAINTENANCE NEEDED.
3. CALL FOR SERVICE
1. CHECK TO MAKE SURE THAT
ALL POWER CORDS ARE
PLUGGED IN PROPERLY.
ELECTRIC GRILLS HAVE 3
CORDS.
CHECK CIRCUIT BREAKERS.
2. NOTE ZONE AND CALL FOR
SERVICE.
3. CALL FOR SERVICE
1. NOTE ZONE AND CALL
FOR SERVICE – POSSIBLE
THERMOCOUPLE, INTERFACE
BOARD OR CONTROLLER.
2. ZONE(S) BECAME TOO
HOT. NOTE ZONE AND
CALL FOR SERVICE.
POSSIBLE SOLID STATE
RELAY, THERMOCOUPLE,
THERMOCOUPLE INTERFACE
BOARDS, OR CONTROLLER.