Lang 36S-20M-U Installation, Operation, Maintenance, & Troubleshooting - Maintenance & Cleaning
15
MAINTENANCE & CLEANING
RANGE
FRENCH PLATE
FRENCH PLATE WILL NOT HEAT
PROBABLE CAUSE
CORRECTIVE ACTION
Incorrect wiring
Confirm the French Plate is wired correctly.
Confirm that range is phased correctly.
Defective 6-Heat switch
Confirm that switch is wired correctly.
Confirm that switch is operating correctly.
Defective French Plate
Confirm that French Plate is getting correct voltage.
Confirm that French Plate is operating correctly. (5.5 amps)
CALIBRATION
Calibration Check
Place thermometer or thermocouple in the center of oven cavity.
Set thermostat to 350
°F and the top 3-heat switch to the high position and the bottom to the low
position.
Allow the oven to preheat for at least half an hour.
Note cycle on temperatures and cycle off temperatures for 3 cycles. (Red indicator light indicates
when oven is calling for heat)
After 3 cycles average the temperature, (Add all six temperatures and divide by 6) the temperature
should be +/- 15
°F.
Calibration Adjustment
A 1/16” flat blade screwdriver with a 2” shaft is required to make adjustments on the thermostat.
Maintain the oven temperature at 350
°F.
Without turning the thermostat, remove the knob.
Locate the adjustment screw at the base of the shaft and insert the screwdriver.
Grasp the shaft and turn the screw. Counter clockwise to increase and clockwise to decrease (1/8
of a turn will move the temperature 5-7
°F in either direction).
Reinstall the oven knob and recheck the oven temperature.