10
TROUBLE SHOOTING GUIDE
SYMPTOM PROBLEM REMEDY
Not heating
Loose Terminal Connections
Tighten Terminals
Improper
Voltage
Change
Voltage to match Range
Defective Elements
Replace Elements
Thermostat Inoperative
Broken Capillary Tube
Replace Thermostat
Loose Connections
Tighten Terminals
Improper
Voltage
Change
Voltage to match Range
Temperature Fluctuation
Out of Calibration
Recalibrate Thermostat
Pilot Light Out
Defective
Replace
Power Supply Circuit Breakers
Trip
Supply Breakers insufficient size
Install proper size breakers
Supply voltage & range voltage
do not match
Change voltage to match range
Internal Circuit Breakers Trip
Supply voltage & range voltage
do not match
Change voltage to match range
Too long to heat
Improperly Phased
Phase range to match power
supply per wiring diagram
PERFORMANCE AND INSPECTION
A periodic check of thermostat calibration should be performed.
Calibration Check:
Put a surface type thermometer or thermocouple in the center of each top section.
Set thermostat knobs to 350
°
F and allow the plate to cycle for 30 minutes.
Then take 10 readings each 3 minutes apart and calculate the average temperature.
After calculating the average temperature check the reading when the pilot light goes “ON” and again
when the pilot light goes “OFF” three consecutive times. It the “ON” and “OFF” temperature reading
drift in either direction, the plate has not yet reached stabilization temperature.
When stabilized, the “ON” and “OFF” temperature should fall within a plus or minus 25
°
F of the
temperature set on the dial.
NOTE:
If these requirements are met., the thermostats do not need calibration adjustment.
MAJOR COMPONENT DISASSEMBLY, REPAIR, REPLACEMENT AND REASSEMBLE:
Refer to Figure #3
WARNING:
Disconnect Range from power before attempting any repair.
