Wolf DF304, Technical & Service Manual

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D Du ua all F Fu ue ell R Ra an ng ge e
Troubleshooting Guide
5-4
PROBLEM POSSIBLE CAUSE TEST / ACTION
A. CONSTANT SPARKING AT
SURFACE BURNER
B. INTERMITTENT SPARKING
AT SURFACE BURNER
C. POOR IGNITION AT
SURFACE BURNER
D. NO IGNITION AT SURFACE
BURNER
E. POPPING NOISE AT
SURFACE BURNER DURING
SIMMER MODE
F. FLAME APPEARANCE ON
SURFACE BURNER(S)
1. Tall flame
2. Yellow flame
3. Pulsing flames
Ground wire disconnected at outlet or
inside unit
Spark module wired incorrectly or
defective
Electrode not positioned properly
Burner head not properly positioned on
inner distribution ring
Defective micro switch at burner valve
Cut or splice in electrode wire
Dirty electrode
Cracked or damaged electrode
Cut or splice in electrode wire
Loose wire connection at spark module
Defective spark module
Burner head not properly seated on inner
distribution ring
Electrode not positioned properly
Partially plugged ports in burner head
O-rings not properly installed
Debris on inner distribution ring
Inner distribution ring has burr or crack
Improper Gas orifice
Gas pressure
Improper gas type
Defective micro-switch at burner valve
Defective/dirty electrode
Defective or loose wiring
Defective spark module
No Power
No gas to unit
Burner head not seated properly
O-rings damaged or not seated properly
Burr on bottom of burner head
Burner head damaged or dirty with food
debris
Inner distribution ring cracked or warped
Burner head not positioned properly
Burners not getting enough primary or sec-
ondary air
Port holes in burner head not to specifica-
tion or damaged/dirty
Incorrect gas orifices
Gas pressure
May have to call an electrician. Check internal
connections, may have to wire correctly
Rewire spark module(s) or replace
Reposition electrode. Electrode should be seat-
ed down to cooktop pan.
Rotate to correct position and advise owner
Replace micro switch
Replace electrode wire
Clean with wire brush
Replace electrode
Replace electrode wire
Repair wire connection
Replace spark module
Rotate to correct position and advise owner
Reposition electrode. Electrode should be seat-
ed down to cooktop pan.
Clear/clean as necessary
Install properly or replace if defective
Clean/remove debris
Replace inner distribution ring
Check orifice stamp number
Check gas pressure with a manometer
Check for gas type and advise owner if improp-
er. May have to convert unit to LP/Natural gas
Replace micro switch
Replace/clean electrode
Replace/repair wiring
Replace spark module(s)
Check outlet and circuit breaker
Check gas pressure with a manometer
Reposition burner head and advise owner
Replace/reposition o-ring
Replace burner head
Replace/clean burner head
Replace inner distribution ring
Make sure burner head is locked in properly
Make sure air vents at front of burner box are
not blocked
Replace/clean burner head
Check stamp number on orifices
Check gas pressure using a manometer
Problems Associated with the Surface Burners