Frymaster SCFD 1.9Troubleshooting Guides cont, Decathlon Series Gas Fryers, Service Procedures

DECATHLON SERIES GAS FRYERS

CHAPTER 1: SERVICE PROCEDURES

1.9Troubleshooting Guides (cont.)

	A.	Pilot does not stay lit (fryer is on and	A.	Check high-limit switch.	Switch
		thermopile output is approximately		continuity should be "0."	If not, high-
		400 millivolts and/or thermocouple is		limit switch is defective. Replace
		approximately 25 millivolts.		high-limit switch.
	B.	Pilot does not stay lit (fryer is on and	B.	Inspect thermocouple (units without
		thermopile output is not		interface board) or thermopile (units
		approximately 400 millivolts or		with interface board) and replace if
		thermocouple output is not 25		defective.
		millivolts.
	C.	Pilot stays lit, and the high-limit and	C.	Inspect gas valve and replace if
		thermopile/thermocouple are known		defective.
		working, but burners fail to light.
No burner flame.	D.	Gas valve is known to be good, but	D.	Inspect electronic/operating
		there is not 24 VAC (120VAC on		thermostat sensor (while still in
		systems so equipped) at the gas valve		frypot) for damage. Replace if bent,
		terminals.		dented, or cracked. Inspect leads for
				fraying, burning, breaks, and/or kinks.
				If found, remove and replace
				thermostat(s). Remove leads from
				terminal block, allow oil to cool 15°F
				(8°C) below thermostat setting, and
				check continuity. If continuity is not
				"0,” then thermostat has failed.
				Replace thermostat(s).
	E.	Continuity from terminal block to gas	E.	Inspect wiring for breaks or shorts and
		valve electronic/operating thermostat		repair if necessary.
		wire is not "0."
	A.	Incoming gas supply pressures are not	A.	Inspect gas supply to fryer. Repair
		within range [Natural- 6-14" W.C.		and/or replace faulty components
		(1.49-3.49 kPa); Propane- 11-14"		(defective supply shut-off valves,
Fluctuating or erratic		W.C. (2.74-3.49 kPa)]		incorrect piping size, etc.)
	B.	Air in gas supply lines (new	B.	Allow unit to cycle on and off for
lighting of burner flame.
		installation).		approximately 30 minutes to force air
				from gas manifold and lines.
Electronic/operating	A.	Electronic/operating thermostat is out	A.	Calibrate electronic/operating
thermostat will not adjust		of calibration.		thermostat. Replace if calibration is
to correct temperature.				not possible.

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