74
Troubleshooting
McDonald's Intelligap Grills
160125
General Troubleshooting Guide
All Models
PROBLEM PROBABLE CAUSE REMEDY
One side of the clamshell grill will
not heat. The control displays the
message, “UPPER HEATER
FAILURE” or “LOWER HEATER
FAILURE”.
One power connection is not
connected.
Check the power connection.
The restaurant circuit breaker has
tripped.
Reset the restaurant circuit
breaker.
The contactor is faulty. Replace the contactor.
The heater is faulty. Replace the heater.
The high limit switch is faulty. Replace the high limit switch.
The solid state relay is faulty. Replace the solid state relay.
One side of the clamshell grill will
not heat.
One power connection is not
connected.
Check the power connection.
The restaurant circuit breaker has
tripped.
Reset the restaurant circuit
breaker.
The contactor is faulty. Replace the contactor.
The heater is faulty. Replace the heater.
The high limit switch is faulty. Replace the high limit switch.
The solid state relay is faulty. Replace the solid state relay.
One heat zone will not heat. Heater is not turning on or is
heating too slowly. The power cord
may have come loose or partially
unplugged at wall receptacle.
Check the plug receptacle and
re-seat the connection.
The interface board is faulty. Replace the interface board.
The solid state relay is faulty. Replace the solid state relay.
The control harness is faulty. Replace the control harness.
One of the heat zones is
overheating. (The display reads
“TOO HOT”.)
The interface board is faulty. Replace the interface board.
The solid state relay is faulty. Replace the solid state relay.