Vulcan-Hart ML-126857, ML-126853, VHX24E5, MHB24E, ML-126852 manual Cooking Compartment Controls

Page 45

VHX SERIES STEAMER - TROUBLESHOOTING

COOKING COMPARTMENT CONTROLS

SYMPTOM		POSSIBLE CAUSES

Cooking compartments do not operate.	1.	No power to cooking compartment controls.
	2.	Pressure in boiler is below compartment pressure switch
		setting.
	3.	Manual intake shutoff valve in the off position.
	4.	Door switch malfunction.
	5.	Timer malfunction.
	6.	Malfunctioning pressure switch in compartment.
	7.	Interconnecting wiring malfunction.

Steam generated inside compartment	1.	Steam supply solenoid not fully closing (clogged or dirty).
when timer is off.	2.	Timer contacts 1 & 3 closed.

Timer motor does not run.	1.	Door open or door switch malfunction.
	2.	Timer not receiving power or malfunction.

Door not closing properly.	1.	Door latch assembly malfunction or out of adjustment.
	2.	Striker adjustment.

Door won’t open.	1.	Latch won’t release.

Buzzer not operating.	1.	Timer malfunction.
	2.	Buzzer malfunction.

Compartment leaks water around door or	1.	Compartment drain screen clogged.
water accumulating in compartment .	2.	Door out of adjustment.
	3.	Drain line obstructed or not to an open air gap drain.
	4.	Worn or damaged door gasket.
	5.	Steamer not level.

Steam leaks around door.	1.	Door out of adjustment.
	2.	Worn or damaged door gasket.
	3.	Drain line obstructed or not to an open drain.

Page 45 of 48		F25154 (February 2004)

Image 45

Contents VHX24E Shown VHX Boiler Base Series High Efficiency Electric SteamerTable of Contents VHX Series Steamers INSTALLATION, Operation Cleaning Introduction GeneralModel Number of Pans PAN Depth PER Compartment Inches Water Conditioning SpecificationsBoiler Code Descriptions Boiler PressureElectrical ToolsStandard SpecialPressure Switch Control BOX Components Removal and Replacement of PartsMain Control BOX Components Left Side View Shown Water Level Gauge AssemblyHeating Elements Heating Elements Heating Element Mounting PlateRight Side View Shown Boiler AssemblyDescaler Cathodic Protector Removal Cooking Compartment DoorsGasket HandleLatch Assembly Boiler Service Procedures and AdjustmentsWater Level Probe Housing Blowdown Water Level Controls TestMain Water Level Control Auxiliary Low level Cut-Off Control Cycling Pressure Switch Adjustment Boiler Fill and Cold Water Condenser Solenoid Valves High Limit Pressure Switch AdjustmentCold Water Condenser Thermostat Adjustment Intake Shut-Off Valve Adjustment Steam Flow Heating Element TestCooking Compartment Door Latch Adjustment Door Sealing AdjustmentElectrical Operation Reset Switch ManualComponent Function Cold Water CondenserCompartment Pressure Switch Blowdown/DrainSteam Solenoid Valve Boiler Base Controls Component LocationsBoiler Base Controls Cooking Compartment Controls Low Level Cut-Off & Differential Control Water Level ControlsAuxiliary Low Level Cut-Off Relay Board Layout, Legend & Diagnostic Test PointsSchematic Initial Fill and Preheat Sequence of OperationBoiler Blowdown/drain Water Refill After Initial FillVHX Series Steamer Electrical Operation Schematics Cooking Compartment Controls Wiring Diagrams VHX Series Steamer Electrical Operation Heating Element Circuits Cooking Compartment Controls Troubleshooting Symptom Possible CausesBoiler Base Controls Symptom Possible Causes Symptom Possible Causes Cooking Compartment Controls VHX Series Steamer VHX Series Steamer Condensed Spare Parts List VHX24E, VHX24E5, MHB24EPart Number Description