Fig. 32
1.
2.
Verify gas orifice is threaded into the fitting
properly, and is centered and mounted
perpendicular to the burner venturi opening.
Adjust alignment as necessary.
3.
Check gas orifice for blockage or damage. If dirty,
clean with air or water only.
4.
Verify gas orifice is correct for the altitude.
Contact the appropriate service support
department for gas orifice information. Please
have the machine model, serial number and gas
type ready.
THERMOCOUPLE TEST
1.
Cycle the power switch and set temperature knob
to call for heat. Observe thermostat cycle light on
front panel.
A.
If blinking, there may be a problem with
thermocouple or temperature controller. To
identify error code, refer to TEMPERATURE
CONTROLLER - LED DIAGNOSTICS AND
OPERATING STATUS .
2.
Access TEMPERATURE CONTROLLER.
3.
Remove thermocouple connections from
temperature controller.
Fig. 33
4.
Check the thermocouple for resistance.
A.
If meter reads an overload (OL) condition
(open), or zero ohms (short) replace the
thermocouple and check temperature
controller for proper operation.
5.
If resistance is measured, thermocouple is good.
TEMPERATURE CONTROLLER
TEST
1.
Cycle the power switch and set temperature knob
to call for heat. Observe thermostat cycle light on
front panel.
A.
If blinking, there may be a problem with
thermocouple or temperature controller. To
identify error code, refer to TEMPERATURE
CONTROLLER - LED DIAGNOSTICS AND
OPERATING STATUS .
B.
Turn temperature knob to off.
2.
Access the TEMPERATURE CONTROLLER.
3.
Connect power to the machine.
4.
Turn power switch on.
5.
Verify temperature controller is receiving
120VAC at pins 1 & 2 on connector, polarity is
correct and machine is properly grounded.
VCCG Series Heavy Duty Gas Griddle - SERVICE PROCEDURES AND ADJUSTMENTS
Page 17 of 26
F45533 (1014)
