Manuals / Vulcan-Hart / Household Appliance / Boiler

Vulcan-Hart VL3GPS, VL3GMS, VL2GMS Symptom, Possible Causes, Vl Series Steamer - Troubleshooting

Models: VL2GPS VL3GPS VL3GSS VL2GSS VL2GAS VL3GAS VL2GMS VL3GMS

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VL SERIES STEAMER - TROUBLESHOOTING


	SYMPTOM		POSSIBLE CAUSES

	Cooking timer motor does not run.	1.	Timer not getting power.
		2.	Timer motor inoperative.

	Buzzer not operating.	1.	Cooking timer malfunction.
		2.	Buzzer malfunction.

	Compartment red light and timer do not	1.	Thermal switch (load compensator) is set too high.
	come on; excessive time elapses before
	they come on; timer stops, the red light
	goes out, and the buzzer does not sound
	after compartment exhausts steam; time
	is set as usual for the product and the
	product is overcooked.

	Short a time between starting and the red	1.	Thermal switch (load compensator) is set too low.
	light coming on; red light comes on
	immediately; time is set as usual for the
	product and the product is undercooked.

	Cooking Compartment Controls	1.	Ensure that voltage is reaching control circuit through
	inoperative		compartment power switch when turned ON.
		2.	On electric heat models with a transformer, check step down
			transformer (located in the contactor box) for proper
			operation.
		3.	Check cooking timer function and contact position. See
			“SCHEMATIC AND WIRING DIAGRAMS -
			COMPARTMENT CONTROLS” under “ELECTRICAL
			OPERATION”.
		4.	Check that timer motor operates when connected to power. If
			a problem is found in timer, replace it, do not take timer
			apart.
		5.	On prevent and automatic models check the load
			compensator for malfunction.
		6.	Check wiring for damaged insulation. (no short circuit)
		7.	Check that all connections and terminals are securely
			fastened. (no open circuits)
		8.	Check that all connections are made according to
			compartment control wiring diagram.

	Cooking Compartment not venting at end	1.	Steam control arm not returning after unlatching (automatic,
	of cook cycle (Prevent models) or when		standard and manual models).
	manual steam control arm is released.		A. Broken or missing return spring.
			A. Broken or missing return spring.
			B. Packing nut on steam gate valve to tight.
			C. Steam control (trip) solenoid malfunction (prevent and
			automatic models).
		2.	Steam exhaust solenoid valve malfunctioning (prevent
			models).

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Vulcan-Hart VL3GPS, VL3GMS, VL2GMS, VL3GAS, VL2GAS, VL2GSS Symptom, Possible Causes, Vl Series Steamer - Troubleshooting

Contents

VL BOILER BASE SERIES CONVECTION STEAMERS SERVICE MANUALTABLE OF CONTENTS Schematics, Electric Steamers, Boiler Controls Schematics, Gas Steamers, Boiler ControlsWiring Diagrams, Gas Steamers, Boiler Controls Wiring Diagrams, Electric Heater CircuitsWATER CONDITIONING GENERALINTRODUCTION Standard SPECIFICATIONSTOOLS SpecialElectric Steamers VL SERIES STEAMERS - GENERALGas Steamers Page 6 ofElectrically Powered Steam Boiler STEAMER OPERATIONGas Powered Steam Boiler Regenerated Steam Powered Boiler3.Automatic blowdown Direct Steam Powered CookerBoiler Blowdown and Steamer Shut off 4.Manual blowdown2. Standard 3. Automatic4.Prevent COMPONENT FUNCTION CABINET BASE BOILER CONTROLSHandhole Cover Assembly COOKING COMPARTMENT CONTROLS REMOVAL AND REPLACEMENT OF PARTS COMPONENT LOCATIONSPage 15 of Prevent GAS AND ELECTRIC MODELS WATER LEVEL GAUGE ASSEMBLYCYCLING AND HIGH LIMIT PRESSURE SWITCHES Solid StateBOILER ASSEMBLY HIGH LIMIT THERMOSTATPILOT AND THERMOCOUPLE ASSEMBLY GAS MODELS GAS COMBINATION CONTROL VALVEDoor and Bushing GasketDoor Screw Nut HEATING ELEMENTS HEATER CONTACTORSSTEAM COIL REGENERATED STEAM MODELSSERVICE PROCEDURES AND ADJUSTMENTS BOILERDeliming Only Models with Deliming Port Assembly DescalerWATER LEVEL CONTROLS TEST Water Level Probes CYCLING AND HIGH LIMIT PRESSURE SWITCHESGAS AND ELECTRIC MODELS Disassembly COMPARTMENT PRESSURE ADJUSTMENTFILL AND COLD WATER SOLENOID VALVES HIGH LIMIT THERMOSTAT BOILER NOT FILLING WITH WATERBOILER BLOWDOWN DRAIN SOLENOID VALVE B.Older Models BOILER SLOW TO PRESSURIZEA. Newer Models 1.All Models With Boiler3.Electric Models INLET WATER STRAINERPILOT AND THERMOCOUPLE ASSEMBLY GAS MODELS 4.Direct Steam ModelsPage 30 of “PILOT AND THERMOCOUPLE ASSEMBLY GAS MODELS” inCheck the thermocouple output voltage as follows Air Shutter Adjustment GAS BURNERSAUTOMATIC IGNITION SYSTEMS GAS MODELS InspectionTerminals Spark Ignition Control TestGAS MANIFOLD PRESSURE ADJUSTMENT HEATER CONTACTORS DIRECT STEAM MODELSREGENERATED STEAM OLDER MODELS HEATING ELEMENTSNUMBER 1.Newer Models THERMAL SWITCH - PREVENT AND AUTOMATIC MODELSWATER LEVEL GAUGE ASSEMBLY 2.Older ModelsSTEAM GATE VALVES ELECTRICAL OPERATION WATER LEVEL CONTROLSSolid State - Auxiliary Low Level Cut-Off VL SERIES STEAMER - ELECTRICAL OPERATION Electro Mechanical - Auxiliary Low Level Cut-Off SEQUENCE OF OPERATION GAS MODELSVL SERIES STEAMER - ELECTRICAL OPERATION A.Power to terminal 9 on the water level controlA.Power to terminal 6 on water level control 4.Water reaches LL low level probeCook Cycle Water Refill After Initial FillINITIAL FILL AND PREHEAT ELECTRIC MODELSBoiler Blowdown/drain COOK CYCLE WATER REFILL AFTER INITIAL FILL BOILER BLOWDOWN/DRAINPage 48 of PAGE PURPOSELY LEFT BLANKVL SERIES STEAMER - ELECTRICAL OPERATION SCHEMATICS, GAS STEAMERS, BOILER CONTROLS Manual Ignition, Standard ControlsPage 50 of VL SERIES STEAMER - ELECTRICAL OPERATIONElectronic Ignition, Standard Controls Page 51 of VL SERIES STEAMER - ELECTRICAL OPERATIONManual Ignition, CSD-1Code Controls Page 52 of VL SERIES STEAMER - ELECTRICAL OPERATIONElectronic Ignition, CSD-1Code Controls VL SERIES STEAMER - ELECTRICAL OPERATION Page 53 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 54 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 55 ofPage 56 of VL SERIES STEAMER - ELECTRICAL OPERATIONElectronic Ignition, Standard Controls VL SERIES STEAMER - ELECTRICAL OPERATION Page 57 ofPage 58 of VL SERIES STEAMER - ELECTRICAL OPERATIONManual Ignition, CSD-1Code Controls VL SERIES STEAMER - ELECTRICAL OPERATION Page 59 ofPage 60 of VL SERIES STEAMER - ELECTRICAL OPERATIONElectronic Ignition, CSD-1Code Controls VL SERIES STEAMER - ELECTRICAL OPERATION Page 61 ofSCHEMATICS, ELECTRIC STEAMERS, BOILER CONTROLS Auto Blowdown, Standard ControlsPage 63 of VL SERIES STEAMER - ELECTRICAL OPERATIONAuto Blowdown, Cal-CodeControls VL SERIES STEAMER - ELECTRICAL OPERATION Page 64 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 65 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 66 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 67 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 68 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 69 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 70 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 71 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 72 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 73 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 74 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 75 ofWIRING DIAGRAMS, ELECTRIC HEATER CIRCUITS Standard and Cal-Code/CSD-1ControlsVL SERIES STEAMER - ELECTRICAL OPERATION Page 77 ofPage 78 of VL SERIES STEAMER - ELECTRICAL OPERATIONManual Blowdown Older Models Page 79 of VL SERIES STEAMER - ELECTRICAL OPERATIONAuto Blowdown Older Models Page 80 of VL SERIES STEAMER - ELECTRICAL OPERATIONPrevent Page 81 of VL SERIES STEAMER - ELECTRICAL OPERATIONAutomatic Page 82 of VL SERIES STEAMER - ELECTRICAL OPERATIONStandard Page 83 of VL SERIES STEAMER - ELECTRICAL OPERATIONManual ALL MODELS TROUBLESHOOTINGSYMPTOM POSSIBLE CAUSESPOSSIBLE CAUSES SYMPTOMVL SERIES STEAMER - TROUBLESHOOTING POSSIBLE CAUSES SYMPTOMVL SERIES STEAMER - TROUBLESHOOTING POSSIBLE CAUSES GAS MODELS ONLYSYMPTOM VL SERIES STEAMER - TROUBLESHOOTING