Garland ST286-E - Fryers Troubleshooting

Part # 138683 (01/08) Page 27
TROUBLESHOOTING Continued
Fryers
Problem Possible Cause Solution
Low millivolt output Low pilot ame Adjust pilot ame height
Clogged pilot orice Clean pilot orice
Low gas pressure Increase gas pressure at regulator
Manual shut o partially closed Open valve fully
Flame blowing away from pile Adjust ame properly
Pilot ame adjusted too high Adjust pilot ame height
Power pile not fully inserted Insert until ame contacts 1/2-3/8”
Defective generator or
thermocouple
Replace
Good output, but low reading at valve Loose, dirty or corroded terminals Clean and/or tighten as required
Broken or disconnected lead wire Reconnect or replace lead wire
Output high with main burner o – low
when on
Main burner over-gassed Adjust gas pressure
Draft pulling ame o thermocouple Eliminate draft
Output good, but pilot safety magnet
will not hold
Loose, dirty or corroded terminals Clean and/or tighten as required
Grease under control on automatic
gas valve, preventing knob from
being pushed fully down
Remove knob and clean
Defective pilot magnet Replace automatic gas valve
Defective high-limit Replace high-limit
Pilot is lit, but main burner will not ignite Loose, dirty or corroded terminals Clean and/or tighten as required
Manual shut o partially closed Open valve fully
Defective automatic gas valve Replace
Thermostat out of calibration Calibrate thermostat
Defective thermostat Replace and calibrate
Vent line, (if used), clogged Remove and clean
Burner does not ignite all the way
around, (delayed ignition)
Deector bracket out of alignment Realign bracket
Ceramic target broken or missing Replace
One or more orices clogged Clean as necessary
Draft around fryer Eliminate draft
Flue connected directly to stack Remove stack and allow 18” space
between ue and grease lters