Viking VCWB300 Evaporator Thermistor Fault, Condenser Air / Con Denser Fan Fault, Compartment

Page 22

 

 

TROUBLESHOOTING GUIDE (con’t)

 

PROBLEM

 

 

 

POSSIBLE CAUSE

 

CORRECTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5.

Door Ajar

a.

(See page 21)

 

 

 

 

 

 

 

 

 

 

6.

Evaporator Thermistor

 

 

 

 

 

 

 

 

Fault.

a.

(See page 17)

 

 

 

7.

Condenser Air / Con-

 

 

 

 

 

 

 

 

denser Fan Fault.

a.

(See page 22)

 

 

 

8.

Check Thermistors

a.

(See E4 checks, page 15)

 

 

 

 

 

 

 

 

 

 

9.

Refrigerant Valve

 

 

 

 

 

 

 

 

Solenoid Fault

 

 

 

 

 

 

a.

Solenoid disconnected

a.

(See solenoid checks page 14)

 

 

 

 

 

 

or malfunctioning.

 

 

 

 

 

 

 

 

 

 

 

 

10.

Sealed System leak or

 

 

 

 

 

 

 

 

Restriction

a.

(See compressor data page 16)

 

 

C. Product Temper-

1.

Compartment

a.

Check thermistor ohms (See

 

 

ature is actually 10°

 

 

 

Thermistor Fault

 

page 15 and 17). Replace if

 

 

or more colder than

 

 

 

 

 

defective. If thermistors are

 

 

displayed

 

 

 

 

 

OK, replace control board.

 

 

temperature.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D. Cold Temper-

1.

Control Set too cold

a.

Check set-points. Adjust set-

 

 

ature in all Wine

 

 

 

 

 

point Warmer.

 

 

Storage

 

 

 

 

 

 

 

 

 

2.

Door Ajar

 

 

 

 

Compartments

 

 

 

 

 

 

a.

Wine rack obstruction

a.

Adjust wine rack

 

 

 

 

b.

Door out of adjustment

b.

See door adjustment page 13.

 

 

 

 

c.

Door or cabinet hinge

c.

Check hinges. Replace if

 

 

 

 

 

 

problem.

 

defective.

 

 

 

3.

Control Set too Cold

a.

Check set-points. Adjust set-

 

 

 

 

 

 

 

 

points WARMER.

 

 

 

 

 

 

 

 

 

 

4.

Room Temperature

 

 

 

 

 

 

 

 

Below Set-Point

a.

Instruct Customer

 

 

E Cold Temperatures

1.

Door Ajar

 

 

 

 

In only one Wine

 

a.

Wine rack Obstruction

a.

Adjust wine rack.

 

 

Storage Compartment

 

b.

Door out of adjustment

b.

See door adjustment

 

 

 

 

 

 

 

 

procedures (See page 11) in

 

 

 

 

 

 

 

 

this manual.

 

 

 

 

 

 

23

 

 

 

Image 22
Contents Service Notebook BUILT-IN Full Height Wine CoolerDiagnostic Check Points Table of ContentsMode of Operation Electronic Function DescriptionGeneral Specifications Model VCWB300# Sealed System Control Panel Assembly Page Page Glass Mullion Shelf Showroom Switch The showroom switch Power Disconnect SwitchDisplay Panel Keyboard Display Panel Operation LightsDisplay Pad AlarmWine Cooler Leveling Door Stop Adjustment Hinge AdjustmentTouch switch inputs with switches connected, typical Diagnostic Check PointsOutputs and line voltage inputs loads connected typical Display Board IDB5D Display Board receive Compressor Relay Use E3 16 as common for measurementsFutaba VFD display data connection Application General InformationMechanical Data Electrical DataThermister Resistance Reading DEG. F ResistanceSolenoid Valve / Evaporator Fan VCWB300 Wiring Schematic VCWB300 Wiring Diagram Troubleshooting Guide Problem Possible Cause Correction Condenser Air / Flow Condenser Fan Fault Troubleshooting Guide con’tProblem Possible Cause Correction Compressor FaultRefrigerant Valve Solenoid Fault Evaporator Thermistor FaultCondenser Air / Con Denser Fan Fault Thermistor FaultWiring Crossed Lights Switched OnFan and Light Switch Light SwitchBad LED Board Replace control panel assembly No Power from Check E15 to ground See Control BoardUnit Switched Off Press unit On/Off key Control Panel Ribbon Check control panel ribbon
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VCWB300 specifications

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