12
TrOubLE SHOOTInG GuIDE FOr Suburban ranGES
- OVEn -
PrObLEM
POSSIbLE CauSE
COrrECTIVE aCTIOn
PIlot Won’t lIGHt
A. Insufficient Gas Supply
A. Inspect Gas Supply
B. Insufficient Gas Pressure
B. Check for gas leaks and correct gas pressure (11
W.C. - 14 W. C.
C. Restriction in pilot orifice or tubing
C. Inspect and clean pilot orifice, inspect tubing for
kinks or leaks around fittings.
PIlot Won’t stAy lIt WHEn knoB
RELEASED
A. Defective Thermocouple
A. Inspect thermocouple connection, Inspect for
proper flame impingement at thermocouple tip.
Inspect mV output from thermocouple when heated
(18 mV on screw in thermocouple) (4 mV. on plug in
thermocouple)
B. Pilot plunger inside gas control not fully engaged
with magnet when knob is depressed
B. Inspect that knob is not coming in contact with
range front when knob is depressed. This could keep
pilot plunger inside gas valve from coming in contact
with the electromagnet in valve. Inspect that plunger
on valve is engaging when knob is depressed.
C. Defective magnet in control thermostat
C. Replace control valve/manifold assembly
D. Micro-switch not engaged (plug in thermocouple
models only)
D. Inspect micro-switch, adjust as required.
MAIn BurnEr Won’t lIGHt
A. No gas flowing to main burner
A. Inspect burner orifice for obstruction. Inspect
gas pressure to main burner, replace oven control if
defective. Ensure pilot is lit.
MAIn BurnEr FluttErs WHEn lIt
A. Air Shutter incorrectly set
A. Adjust air shutter on burner
B. Low gas pressure/restriction in orifice
B. Inspect gas pressure and orifice. Adjust as
required
PILOT GOES OUT (STARTS POPPING) DURING
BAkInG cyclE
A. Pilot burner defective
A. Replace pilot burner
B. Gas control thermostat defective
B. Inspect gas pressure from gas control to pilot
burner, replace gas control if found defective
C. Pilot tubing restricted
C. Inspect pilot tubing for kinks or leaks at
connections
Poor BAkInG rEsults
- Food too light or too dark
- Food cooks unevenly
A. Oven not preheated
A. Preheat oven a minimum of 10 minutes
B. Poor oven air circulation
B. Inspect to ensure that oven vent is not blocked or
that oven is too full for proper air circulation
C. Oven temperature sensing bulb not installed
correctly
C. Inspect that bulb is installed into clip located at the
top of cooking compartment
D. Thermostat out of calibration
D. Have range inspected by qualified service
technician. Replace thermostat manifold assembly
if found to be defective.
