Vulcan-Hart VCE6H 126177, VCE20H 126172, VCE10H 126178, VCE20F 126173 Symptom Possible Causes

Page 67

ELECTRIC COMBI OVENS - TROUBLESHOOTING

SYMPTOM

 

POSSIBLE CAUSES

 

 

 

Heating mode selector switch, adjustment

1.

Display/Keypad/CPU board malfunction. Verify keypad is

knob or keypad button(s) inoperative

 

functioning properly. See “DIAGNOSTIC TEST MODE -

(manual control).

 

MANUAL CONTROLS” under “SERVICE PROCEDURES

 

 

AND ADJUSTMENTS”.

 

2.

If keypad test is inaccessible, the oven control board may

 

 

not be properly mounted to the front panel. If the

 

 

mounting washers are stacked too high or the weld studs

 

 

have excessive flash, the oven control board will be

 

 

positioned to far from the keypad to actuate the buttons

 

 

when pressed.

 

 

 

Door will not lock.

1.

Door handle magnet not positioned over door reed switch.

 

2.

Door reed switch open. (Check switch operation with an

 

 

alternate magnet)

 

3.

Fuse F3 open.

 

4.

Relay board malfunction (K1 relay).

 

5.

Door motor & switch mechanism inoperative.

 

6.

Motor stop mechanism remains in the open position.

 

 

 

“HHH” in the time display and “025” in the

1.

Low or no voltage on battery backup to maintain the oven

temperature display. (Programable control

 

control’s setup and program information in the event of a

only)

 

power loss. See “BATTERY BACKUP - PROGRAMABLE

 

 

CONTROL” under “SERVICE PROCEDURES AND

 

 

ADJUSTMENTS”.

 

 

 

Water in component area.

1.

Cavity drain “gasket” not sealing properly.

 

2.

Heating element(s) “o-ring” not sealing properly.

 

 

 

Water in bottom of cavity.

1.

Water too soft for water level sensors to conduct

 

 

electricity.

 

2.

Water level sensor leads loose or disconnected.

 

3.

Lime scale build up on water level sensors giving false

 

 

reading. See note at the beginning of troubleshooting

 

 

section.

 

4.

Excessive lime descale solution added to steam

 

 

generator for clean cycle deliming. The increased

 

 

concentration interferes with water level sensing and

 

 

causes the steam generator to overfill.

 

5.

Drain line clogged causing backup.

 

6.

Water solenoid valve remains open.

 

7.

Relay board malfunction (K3, K5 relay).

 

8.

Water level sensor(s) malfunction.

 

9.

Oven control board malfunction.

 

 

 

Cavity vent not operating.

1.

Vent motor not receiving voltage.

 

 

A. Motor leads loose or disconnected.

 

 

B. Relay board malfunction (K2 relay).

 

2.

Vent motor/micro switch assembly (4SW) malfunction.

 

3.

Mechanical binds on shaft extension rod or obstructions in

 

 

vent housing.

 

4.

Shaft extension rod not turning with motor. Mounting

 

 

screw missing in rod.

 

5.

Oven control board malfunction.

 

 

 

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Contents VCE10F Shown on Stand ModelmlTable of Contents Electric Combi Ovens Specifications Operation Cleaning Stacking KIT InstructionsIntroduction 208V 240V 480V ElectricalOven Controls Lubrication Water ConditioningTools Side Panels Rack GUIDE/FILTER/EXHAUST AssemblyElectric Combi Oven Removal and Replacement of Parts Covers and PanelsCovers and Panels Oven Temperature ProbeRear Panel Control PanelProgramable Oven Control Relay Board Manual Oven ControlsRemoval Blower and MotorBlower Motor Shaft Seal InstallationBlower Motor Shaft Seal Heating ElementsSteam Generator Thermal FusesVent Motor Steam Generator Drain Vent Damper Assembly PumpShaft Extension Sealing WasherLevel Shown Steam Generator TankOven Door DisassemblyDoor Lamp Oven Door Hinges Door Locking Mechanism Door Magnetic Reed SwitchReplacement Door SealOven Cavity Seal Service Procedures and AdjustmentsContactors Power Supply Board TransformerOven Cavity Drain To Perform Electric Combi Ovens Service Procedures and AdjustmentsDiagnostic Test Mode Programable Control Code Relay Component Configuration Mode Manual ControlsElectric Combi Ovens Service Procedures and Adjustments OFF Diagnostic Test Mode Manual ControlsCode Relay Component Test Condition Service Error LightsOven Door Adjustment Electric Combi Ovens Service Procedures and Adjustments Programable Control Configuration Mode Buzzer Adjustment Programable ControlBuzzer Adjustment Manual Controls Configuration ModeClean Cycle Mode Steam Generator Deliming Tank Amount Model Volume Scalekleen Added To Feeder Bowl Battery Test Battery Backup Programable ControlTWO Piece Configuration Shown Battery ReplacementElectric Combi Oven Electrical Operation Component Function3TF Thermal Fuse 1T Power Supply Board TransformerHigh Limit Thermostats 1TF & 2TF Thermal FusesKM6 6CON KM5 5CONKM7 7CON Component Location Electric Combi Oven Electrical Operation Sequence of Operation Heating Mode and Cavity Fan SpeedsHeating Regulation Steam Regulation Steam Pre-HeatWater Injection Humidifier Cool Down Mode Manual ControlsConvection Mode Powering ControlSequence of Operation Steam ModeTime Method Combi ModeDelta T Method Temperature Probe MethodManual Oven Controls Programed Cooking Operation Powering DownConvection Mode Steam Regulation Temperature Probe Method Deluxe Manual Control only Powering Down Wiring Diagrams Electric Combi Oven Electrical Operation Level Electric Combi Oven Electrical Operation Level Electric Combi Oven Electrical Operation Electric Heater Circuits Electric Combi Oven Electrical Operation Electric Combi Oven Electrical Operation Electric Combi Ovens Troubleshooting TroubleshootingOperation Proceduresand AdjustmentsIncorrect temperature probe in use. Ensure Adjustments Configuration Mode ProgramableProcedures and Adjustments Symptom Possible Causes Replacement of Parts

VCE10F 126179, VCE20F 126173, VCE6H 126177, VCE10H 126178, VCE20H 126172 specifications

The Vulcan-Hart VCE series consists of several efficient and powerful cooking equipment models, including the VCE20H 126172, VCE10H 126178, VCE6H 126177, VCE20F 126173, and VCE10F 126179. These models are designed to meet the rigorous demands of commercial kitchens and food service operations.

The VCE20H 126172 is a versatile convection oven that offers a spacious cooking capacity, making it ideal for establishments with high-volume cooking needs. Its dual fan system ensures even heat distribution, which results in perfectly cooked dishes every time. This model features a digital control panel that allows for precise temperature adjustments and programmable cooking settings, enhancing overall operational efficiency.

Similarly, the VCE10H 126178 is a compact yet powerful option that accommodates smaller kitchens while still delivering outstanding performance. Its energy-efficient design minimizes power consumption without sacrificing output. The stainless steel construction ensures durability and easy maintenance, making it a reliable choice for busy culinary environments.

The VCE6H 126177 model is another compact oven designed for limited spaces while providing exceptional cooking capabilities. With its robust heating elements and efficient airflow system, it excels in baking and roasting tasks. Additionally, it features a user-friendly interface that simplifies the cooking process, enabling staff to focus on food quality and service speed.

The VCE20F 126173 stands out with its innovative technology, integrating a focused heating system that enhances cooking consistency and reduces cooking times. Ideal for frying, roasting, and baking, this model incorporates advanced safety features like automatic shut-off and temperature monitoring, ensuring a safe cooking environment.

Lastly, the VCE10F 126179 is perfect for establishments seeking a combination of performance and versatility. This model offers various cooking modes, allowing chefs to experiment with different techniques seamlessly. Its compact size makes it a great fit in kitchens with limited space, while the commercial-grade specifications guarantee long-lasting operation.

In conclusion, the Vulcan-Hart VCE series, featuring models like the VCE20H, VCE10H, VCE6H, VCE20F, and VCE10F, encompasses a range of options suitable for diverse commercial cooking needs. Each model is built with advanced technologies, emphasizing efficiency, safety, and durability, making them ideal choices for any professional kitchen. The carefully designed features of these ovens not only enhance cooking quality but also improve workflow, making them essential kitchen tools for culinary excellence.
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