Vulcan-Hart VCE20F 126173, VCE20H 126172, VCE10H 126178 Electric Combi Ovens Troubleshooting

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ELECTRIC COMBI OVENS - TROUBLESHOOTING

TROUBLESHOOTING

WARNING: CERTAIN PROCEDURES IN THIS SECTION REQUIRE ELECTRICAL TEST OR MEASUREMENTS WHILE POWER IS APPLIED TO THE MACHINE. EXERCISE EXTREME CAUTION AT ALL TIMES. IF TEST POINTS ARE NOT EASILY ACCESSIBLE, DISCONNECT POWER, ATTACH TEST EQUIPMENT AND REAPPLY POWER TO TEST.

Before performing any of the troubleshooting checks listed below, run the oven control in “DIAGNOSTIC TEST MODE” for the oven control in use, as outlined under “SERVICE PROCEDURES AND ADJUSTMENTS”. By utilizing the oven controls “diagnostic test mode” the Service Technician can quickly and easily determine if a component is functioning properly or in need of repair. The “diagnostic test mode” can be entered only when the machine is OFF. If the oven is inoperative, then refer to the troubleshooting guide under SYMPTOM - “Oven inoperative and displays are blank” and/or SYMPTOM - “Button(s) on keypad inoperative”. Also, check the Technical Service Bulletins for changes to the oven and for software revisions to the oven control.

NOTE: An accumulation of lime scale on the water level sensors may cause false water level readings to the oven control. Lime scale that is dry can prevent the sensor from detecting the water level until the lime becomes moist enough to conduct the electrical signal. This condition can cause water errors and/or overfilling of the steam generator. In reverse, lime scale that retains water may already be moist enough to conduct the electrical signal. This condition can cause water errors, prevent the steam generator from filling and cause dry firing of the heating elements. Subsequently, the steam generators thermal fuse(s) would open to protect the oven. See “CLEAN CYCLE MODE - STEAM GENERATOR DELIMING” under “SERVICE PROCEDURES AND ADJUSTMENTS”.

SYMPTOM

 

POSSIBLE CAUSES

 

 

 

Water error light on, buzzer sounds for one

1.

Time to fill steam generator has exceeded 4 minutes 20

minute and steam generator light comes on

 

seconds.

in a cooking mode.

 

A. Ensure water supply is on.

 

 

B. Check water fill line for clogs.

 

2.

Water too soft for water level sensors to conduct

 

 

electricity.

 

3.

Lime scale build up (dry) on water level sensors giving a

 

 

false reading to the oven control. See note at the

 

 

beginning of troubleshooting section.

 

 

 

Water error light on and buzzer sounds after

1.

Water still in steam generator - check for clogged steam

steam generator drains.

 

generator drain line or drain pump malfunction.

 

2.

Lime scale build up (moist) on water level sensors giving

 

 

false reading. See note at the beginning of

 

 

troubleshooting section.

 

 

 

Water error light on and buzzer sounds

1.

Water still in steam generator - check for clogged steam

when oven is turned on.

 

generator drain line or drain pump malfunction.

 

2.

Lime scale build up (moist) on water level sensors giving

 

 

false reading. See note at the beginning of

 

 

troubleshooting section.

 

 

 

Steam generation stops, water error light

1.

Oven control board has not seen a call for water request

and steam generator light on in steam

 

within 5 minutes powering on. A boil down situation is

mode.

 

assumed.

 

 

A. Lime scale build up on water level sensors giving

 

 

false reading. See note at the beginning of

 

 

troubleshooting section.

 

 

B. Oven control board malfunction.

 

 

 

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Contents VCE10F Shown on Stand ModelmlTable of Contents Electric Combi Ovens Operation Cleaning Stacking KIT Instructions SpecificationsIntroduction 208V 240V 480V ElectricalOven Controls Water Conditioning LubricationTools 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 FusesKM5 5CON KM6 6CONKM7 7CON Component Location Electric Combi Oven Electrical Operation Heating Mode and Cavity Fan Speeds Sequence of OperationHeating 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 Configuration Mode Programable AdjustmentsProcedures 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.