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Technical Support: +1 (724) 628 3050
SERVICE
TROUBLESHOOTING
BASIC FUNCTIONALITY CHECKS
G2 DIAGNOSTICS LAMP
The G2 Diagnostics Lamp, is located on the right-front side of the control cabinet. The ‘DIAGNOSTIC’ lamp
communicates the INTERMITTENT PILOT IGNITION MODULE (IP-IM) status. This lamp can be helpful when
determining the cause of an “Ignite” alarm. The lamp states are listed on the following page.
SPARK
FLAME SENSE
24VAC
NO CONNECTION
PILOT VALVE (PV)
NO CONNECTION
MAIN VALVE (MV)
GROUND
FIGURE 4-45
IGNITION MODULE CONNECTION DIAGRAM
SYMPTOM POSSIBLE CAUSE POSSIBLE CORRECTION
Oven Does Not
Heat (Continued)
2 Protection “High Limit”
Thermostat has Tripped
(Continued)
b Verify oven temperature during operation.
If temperature is more than 25°F out of sync with
the set temperature replace oven thermocouple
(TC).
3 Fas supply pressure too
high.
a Gas pressure exceeds 13.8 inW.C. Excessive
pressure may allow the oven pilot to ignite (green
diagnostic light ON SOLID). However, the main
valve (high re) will remain closed as a result of
the excessive pressure.
Install or adjust gas supply pressure regulator.
3 Various b See G2 Diagnostics Lamp table below.
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