Accu-Steam™ G2 Gas Service Manual
PAGE 12
SP8042-1609
Troubleshooting Guide
G
Fault light on If burners did not ignite, replace fault timer.
If burners did ignite and unit heating, check for short to ground in the white wire
connected to the fault indicator lamp.
H
Heat light not
on
If griddle is warming up or regulating at a set point, replace indicator lamp.
If griddle is not warming up or regulating at a set point, check to see if temp demand ice
cube (24VDC) relay is engaged.
If ice cube relay is not engaged, check for 24VDC at terminals 7 & 8 from temperature
controller.
If voltage is at relay coil, replace relay.
If voltage is not at relay coil, replace temperature controller.
If ice cube relay is engaged, check for poor connections or broken wires. Blue wires com-
ing from ignition module or brown wire coming from OT thermostat.
If connections are good, replace relay.
I
Unit not heat-
ing up
Check for 24 VAC to the gas valve.
If no voltage to the gas valve check for poor or loose connections or broken red wire
between the “heat” lamp and the gas valve.
If there is voltage to the red wire of the gas valve, check for voltage at the brown wire of
the gas valve.
If there is 24VAC to the brown wire at the gas valve and the valve has not turned on,
replace the gas valve.
If there is 24VAC to the brown wire at the gas valve and the valve has turned on, check for
proper gas supply and pressures.
If there is no 24VAC on the brown wire at the gas valve, check for poor or loose
connections or broken brown wire at the gas valve, the “OT” indicator lamp and the OT
thermostat and the demand relay. Repair as necessary.
J
Inaccurate
Temperature
If display temperature is greater than 50 degrees different than measurement device, verify
measurement device. If measurement device appears to be accurate, measure RTD.
If RTD measures normally, replace temperature controller.
If RTD measures out of specifications (temp/resistance), replace RTD.
