Vulcan-Hart VC4ED, VCIEC Error Codes, Computer Control, Code & Problem Probable Cause Solution

Page 58

FULL SIZE ELECTRIC CONVECTION OVENS - TROUBLESHOOTING

Error Codes

In the display window, the error code will alternate between the code and the oven cavity temperature or dashes if the oven is calling for heat (heat light on). The exact error code displayed will depend on the priority assigned to the problem in the EPROM’S software. The lower the error code number, the higher the priority. If more than one problem occurs at the same time, the error code assigned to the higher priority problem will be displayed.

Refer to the error code table below to solve the problem. If the lower priority problem still exists, the next error code will be displayed. When the condition causing the error is resolved, normal oven operation can resume.

NOTE: To check a "Setup Parameter" and its corresponding "Data Value", see "SETUP MODE" under

"COMPUTER CONTROL".

NOTE: If the cause of the error is not apparent, check for these conditions as they may also cause errors to

occur: Electrical noise or a noise event, excess environmental moisture or temperature, or vibration.

CODE & PROBLEM

PROBABLE CAUSE

SOLUTION

 

 

 

Er01 - ROM checksum error

Internal ROM malfunction

Cycle power

 

 

 

Er02 - RAM checksum error

Internal RAM malfunction

Cycle power

 

 

 

Er03 - Ambient sensor error

Ambient temperature is below 32￿F

Check ambient temperature at the

 

 

control.

 

 

 

Er04 - Configuration error

Microprocessor malfunction

Cycle power

 

 

 

Er05 - EPROM error 1

Power loss while storing data

Cycle power

 

 

 

Er06 - Zone 1 A/D underflow error

• Incorrect sensor type

• Check the InP1 setup parameter.

 

• Measuring temperature outside

Verify it matches your sensor.

 

the sensor range

• Check sensor and connections

 

 

for a reversed or open sensor. If

 

 

the condition causing the error is

 

 

resolved, the error will clear.

 

 

 

Er07 - Zone 1 A/D overflow error

Open sensor

• Check the InP1 setup parameter.

 

 

Verify it matches your sensor.

 

 

• Check sensor and connections

 

 

for a reversed or open sensor. If

 

 

the condition causing the error is

 

 

resolved, the error will clear.

 

 

 

Er10 - Stack overflow error

Microprocessor malfunction

• Cycle power

 

 

• Check sensor and connections

 

 

for a reversed or open sensor

 

 

 

Er11 - Open sensor error

Open sensor

• Check the InP1 setup parameter.

 

 

Verify it matches your sensor.

 

 

• Check sensor and connections

 

 

for a reversed or open sensor

 

 

 

Er12 - Shorted sensor

• Incorrect sensor type

• Check the InP1 setup parameter.

 

• Measuring temperature outside

Verify it matches your sensor.

 

the sensor range

• Check sensor and connections

 

 

for a reversed or open sensor

 

 

 

NOTE: 1. Should only see when a new EPROM is installed and powered for the first time.

F25105 (December 2001)

 

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Contents VC4E & VC6E Series VC4ED ShownTable of Contents Full Size Electric Convection Ovens General VC4ES VC4ED VC4EC SpecificationsVC6ES VC6ED VC6EC Removal and Replacement of Parts Covers and PanelsRemovable Components Control Panel ComponentsLeft Side Panel Covers and PanelsTemperature Probe Solid State Control Component Panel ComponentsFront Access Heating ElementsBlower and Motor Alternate AccessLeft Side Elements Shown Door Switch Service Procedures and AdjustmentsDoor Window Oven Doors and Bearings Independent DoorsAssembly Removal Oven Doors Simultaneous DoorsAssembly Removal Door Catch Roller Assembly Independent DoorsDisassembly Mechanical KX ThermostatInterior Lights Lamp AssemblyHigh Limit Thermostat LampCooling FAN Service Procedures and Adjustments Solid State Temperature Control CalibrationMechanical KX Thermostat Calibration Troubleshooting Solid State Temperature Control TestTemperature Probe Test Solid State Control Amps PER Voltage KW PER Element Ohms PER Lead Temp F Ohms208 240 480 Blower Adjustment Door Adjustment Door Catch Roller Adjustment Independent DoorsProcedure Door Switch AdjustmentIntroduction Computer Control Setup modeOperation Probe Test Alternating onMenu Display Parameter Data Solid State Relay TestComputer Control Temperature Calibration Computer Control Operational TestHEY CalyKEY Code Restore Factory Settings SSR1 & SSR2 Electrical OperationComponent Function 1CON & 2CONMechanical Temperature Control Component LocationFull Size Electric Convection Ovens Electrical Operation Full Size Electric Convection Ovens Electrical Operation VC4EC/6EC Plug, Socket and Components Cook & Hold Standard Cook Cycle VC4ED, VC6ED with Solid State Temperature ControlSequence of Operation VC4ES, VC6ES with Mechanical KX ThermostatCool Down Cycle KX Thermostat or Solid State Control Timer Cycle, Cooking KX Thermostat or Solid State ControlVC4EC, VC6EC Computer Control Cook and Hold Cycle Temperature and Time Cycle CookingCool Down Cycle Schematics VC4ES, VC6ES with Mechanical KX ControlsVC4ES, VC6ES with Mechanical KX Controls VC4ED, VC6ED with Solid State Temperature Control VC4ED, VC6ED with Solid State Temperature Control Full Size Electric Convection Ovens Electrical Operation VC4EC, VC6EC Computer Control, 480V Roast & Hold Standard This page Purposely Left Blank Wiring Diagrams VC4ES, VC6ES with Mechanical KX ControlFull Size Electric Convection Ovens Electrical Operation VC4ES, VC6ES with Mechanical KX Control Full Size Electric Convection Ovens Electrical Operation VC4ED, VC6ED with Solid State Temperature Control Full Size Electric Convection Ovens Electrical Operation VC4ED, VC6ED with Solid State Temperature Control Full Size Electric Convection Ovens Electrical Operation Full Size Electric Convection Ovens Electrical Operation Full Size Electric Convection Ovens Electrical Operation VC4EC, VC6EC Computer Control, 480V Roast & Hold Standard Full Size Electric Convection Ovens Electrical Operation Full Size Electric Convection Ovens Troubleshooting TroubleshootingALL Models Computer Control Models only Control Operational TestCode & Problem Probable Cause Solution Error CodesComputer Control T E S Condensed Spare Parts List Part Number Description VC4ES VC4ED VC4EC VC6ES VC6ED VC6EC