Keating Of Chicago MIRACLEAN, Service & Preventative Maintenance Training

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Lighting Problems Trouble Shooting
• #4 - Defective gas valve
– With a quality multi-meter, there are 3 sets of ohm
checks to determine if there is high resistance in the
gas valve.
PROBLEM: Pilot lights, burner does not
Note: when checking the
ohm readings, the
thermopile wire must be
disconnected from the TP
terminal on the valve and
the switch and/or
thermostat needs to be in
the “OFF” position.
Check 1: Place one point of the multi-meter on the TH
terminal on the valve and the other point on a bare metal
surface on the griddle. This resistance reading should be
1.6 ohms ± 0.2 ohms.