30
9.0 FAULT FINDING
FAULT
POSSIBLE CAUSES
REMEDY
Slow/Poor/No heating
Valve pressure wrong
Check pressure
Burner ports blocked
Check burner and clean
Low mains gas pressure
Check with gas supplier
Gas supply isolated/off
Restore supply
Check with gas supplier
Piezo oven igniter not
working
Check for short in high
tension lead
Replace lead
Check for electrode fracture
Replace electrode
Burner will not light/stay lit
No gas at burner
Check injector for blockages
Loose thermocouple
Clean and tighten
connections
Damaged thermocouple
Replace thermocouple
Damaged valve
Replace valve
Oven not reaching
temperature
Faulty thermostat
Replace valve
Flame has yellow/orange
tips
Not enough primary air
Check aeration setting
Contamination in burner
Clean burner and retry
Weak flame
Incorrect valve pressure
Check valve pressure
Blocked injector
Clean injector and retry
Incorrect line pressure
Check with gas supplier
Flame ‘lifts’ off burner
Incorrect primary air
Check aeration setting
Incorrect line pressure
Check with gas supplier
