Part # GCTRM Rev 3 (12/10/09)
Page 60
Gas Equipment Field Service Troubleshooting Guide
A professional as listed in your maintenance and repair center guide should perform service.
PROBLEM
POSSIBLE CAUSE
SOLUTION
Burner flame soft-lazy tip yellow.
Not enough air mixing with gas.
Open air shutter.
Flame lifts off burner ports. Flashes
back in Burner. Pops excessively when
turned off.
To much air mixing with gas.
Close air shutter.
Delayed ignition.
Unit over gassed or orificed incorrectly
Check gas pressure and orifice size.
Pilot burner will not ignite.
Burner adjusted improperly. Burner
Adjust gas and air mixture.
Burner ports plugged.
Clean burner ports.
Pilot flame too small.
Adjust pilot valve.
Draft in kitchen
Determine cause.
Flame lifts off pilot orifice.
Pilot over gassed.
Adjust pilot valve.
Oven pilot keeps going out.
Faulty thermocouple or safety valve.
Check safety system.
Pilot flame too small.
Adjust pilot valve.
Loose connection on safety valve
Tighten connection.
Main burner blowing pilot out
Adjust gas and air mixture.
Millivolt output low on open circuit
test.
Pilot flame too small.
Adjust pilot flame.
Flame yellow-pilot dirty.
Clean and adjust pilot.
Thermocouple faulty.
Replace.
Millivolt output high on open circuit
test but low on closed circuit test.
Short in magnet.
Replace safety valve.
Millivolt output high on open closed
circuit test but safety valve will not
open.
High millivolt reading on drop out test.
Replace safety valve.
SIT Control
Oven too hot or not hot enough
Control out of calibration
Compensate with a small adjustment
on knob. If not helpful, replace the
control.
Oven too hot or not hot enough
Control out of calibration or bypass
improperly set.
Check calibration and set bypass.
SIT Control
Burner flame shuts off when oven gets
up to temperature.
Non adjustable bypass feature
inoperable
Replace control
Burner flame shuts off when oven gets
up to temperature.
By-pass set too low.
Adjust by-pass.
By-pass set to high causing control to
go into snap action.
Adjust by-pass.
Door will not stay closed.
Not enough tension on springs.
Adjust tension nut clockwise.
Springs broken, hinge link broken
Replace faulty parts.
Door will not stay open.
Too much tension on springs.
Adjust tension nut counter-clockwise.
Door not closing on one side.
Door warped.
Re-stress door.
Doors not level or low in center of unit. Trunion support loose.
Level and tighten support.
Trunion support worn.
Replace.
Summary of Contents for G Series
Page 2: ...Part GCTRM Rev 3 12 10 09 Page 2...
Page 4: ...Part GCTRM Rev 3 12 10 09 Page 4...
Page 5: ...Part GCTRM Rev 3 12 10 09 Page 5 Section 1 Model Number Identification...
Page 17: ...Part GCTRM Rev 3 12 10 09 Page 17 Section 2 Serial Number Identification...
Page 20: ...Part GCTRM Rev 3 12 10 09 Page 20...
Page 21: ...Part GCTRM Rev 3 12 10 09 Page 21 Section 3 Certification Markings...
Page 24: ...Part GCTRM Rev 3 12 10 09 Page 24...
Page 25: ...Part GCTRM Rev 3 12 10 09 Page 25 Section 4 Properties And Characteristics of Fuel Gases...
Page 27: ...Part GCTRM Rev 3 12 10 09 Page 27 Section 5 Operation Of Controls...
Page 31: ...Part GCTRM Rev 3 12 10 09 Page 31 Section 6 Gas Valves And Adjustments...
Page 36: ...Part GCTRM Rev 3 12 10 09 Page 36...
Page 48: ...Part GCTRM Rev 3 12 10 09 Page 48...
Page 49: ...Part GCTRM Rev 3 12 10 09 Page 49 Section 8 Gas Pressure Regulators...
Page 52: ...Part GCTRM Rev 3 12 10 09 Page 52...
Page 53: ...Part GCTRM Rev 3 12 10 09 Page 53 Section 9 Thermocouples And How They Work...
Page 55: ...Part GCTRM Rev 3 12 10 09 Page 55 Section 10 Trouble Shooting The Oven Pilot Safety System...
Page 65: ...Part GCTRM Rev 3 12 10 09 Page 65 Section 13 Gas Technician s Glossary...
Page 70: ...Part GCTRM Rev 3 12 10 09 Page 70...
Page 71: ...Part GCTRM Rev 3 12 10 09 Page 71 Section 14 Range Wiring Diagrams...
Page 75: ...Part GCTRM Rev 3 12 10 09 Page 75 3056100 US Range C836C Cuisine Series...
Page 76: ...Part GCTRM Rev 3 12 10 09 Page 76 229064 US Range 836C Cuisine Series...
Page 77: ...Part GCTRM Rev 3 12 10 09 Page 77 2706601 US Range Px S Series Left Single RC Oven...
Page 78: ...Part GCTRM Rev 3 12 10 09 Page 78 2706602 US Range Px S Series Right Single RC Oven...
Page 79: ...Part GCTRM Rev 3 12 10 09 Page 79 2706603 US Range Px S Series 2 RC Ovens...
Page 80: ...Part GCTRM Rev 3 12 10 09 Page 80 4514771 US Range Px SX Series Left Single RC Oven...
Page 81: ...Part GCTRM Rev 3 12 10 09 Page 81 4514772 US Range Px SX Series Right Single RC Oven...
Page 82: ...Part GCTRM Rev 3 12 10 09 Page 82 4514774 US Range Px SX SeriesTwo RC Ovens...
Page 83: ...Part GCTRM Rev 3 12 10 09 Page 83 2529700 ME MSTE 40RC Electric Spark...
Page 84: ...Part GCTRM Rev 3 12 10 09 Page 84 2529701 M MS 40RC...
Page 85: ...Part GCTRM Rev 3 12 10 09 Page 85 2529600 M MS 40 Electric Spark...
Page 86: ...Part GCTRM Rev 3 12 10 09 Page 86 2444200 Sentry Electric Spark...
Page 87: ...Part GCTRM Rev 3 12 10 09 Page 87 2444300 STE286RC STE284RC Left ST283RCE...
Page 97: ...Part GCTRM Rev 3 12 10 09 Page 97 Section 15 Service Bulletins...
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