Garland M/MST35 Installation, Operation And Maintenance Manual

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Garland M/MST35 Installation, Operation And Maintenance Manual Manual pdf 15 page image

Part # 1382677 - 2/15 Page 15TROUBLE SHOOTING AND ADJUSTMENTSAdjustmentsThe burner used on your GARLAND Fryer is a patenteddesign which does not require primary air, so no primary airadjustment is possible. When the proper gas is being used,at the proper pressure, and the ceramic targets are adjustedproperly, combustion will begin about even with the bottomof the ceramic. The sound that is characteristic is a low roar,similar to a blowtorch.The correct type of gas and BTU content for which the fryerwas equipped at the factory is noted on the nameplate, andthis gas must be used.NEVER THROTTLE DOWN THE INCOMING GAS IN AN EFFORTTO MAKE THE FLAME BURN DIRECTLY ON THE ORIFICE.Trouble ShootingPossible Causes Remedy1 Thermostat does not call for heat(does not open gas valve at all). 1 See Below:a. Lead wires damaged. a. Repair or replace wires on thermostat.b. Set too low. b. Raise setting.c. Out of calibration c. Re-calibrated. Thermostat defective d. Replace2. Thermostat does not control set point 2 See Below:a. Out of calibration. a. Re-calibrateb. Contaminated or burned contacts b. Replace thermostatc. Knob of thermostat loose on shaft c. Calibrate thermostat and tighten set screws.A piece of mechanical equipment which is used as hard asa deep fat fryer is going to require service as the fryer getsolder; therefore, the following chart outlines problems thatare most likely to occur and what to do to correct them.There are several possible sources of trouble in connectionwith the operating thermostat. Usually the trouble will benoticed by either the thermostat not causing the gas valve toopen, or by causing it to open at the wrong temperature. Ifit opens the gas valve at the wrong temperature, it is said tobe out of calibration. If all the other parts of the appliance areoperation as they should, the following chart will help locatethe source of trouble and correct it.