IS744 ECN 4665
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FAULT FINDING
Burner/s will not light or stay lit
Oven fails to heat
Is there gas at the burner?
Yes
No
Are thermocouple connections loose?
Is the thermocouple voltage less than 15mV?
Is the valve damaged?
Check injector for blockages
Tighten connections
Replace valve
Yes
Yes
Yes
No
No
No
Replace thermocouple
Recheck system
Is the green neon lit
Yes
No
Oven thermostat
turned to on
position?
Yes
No
Check power supply
Fans rotate but
amber neon not lit
Yes
Check safety
thermostat
Oven still fails to
heat
Contact Service
Desk
Rotate thermostat