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#7031933  - Revision A - April, 2015

Troubleshooting Guides

MODEL 424

MODEL 424

(SWS #3227000)

(SWS #3227000)

Wine Storage Error Code Troubleshooting Guide Instructions

Error Codes indicate problems logged by specific components.  If error codes are logged, they will appear before
temperature readings while in Diagnostic Mode and they can be toggled through with the temperature readings.

1.

With the unit ON, initiate Diagnostic Mode by pressing and holding either COLDER key, then press the UNIT
ON/OFF key, then release both keys.

2.

Check for Error Codes on the display, making sure to toggle through all possible readings by pressing either
COLDER key.  (See Error Code Table Below)

3.

If Error Codes appear, reference the Error Code Troubleshooting Guide on the next page.
a.

The left column of the Error Code Troubleshooting Guide lists the error codes.

b.

The right column of the Error Code Troubleshooting Guide explains what tests and/or corrective actions to
perform.

NOTE:  

If error codes are observed, the SERVICE indicator will appear constant when Diagnostic Mode ends, indi-

cating error codes are logged.  To clear this and the error codes from the software memory, the problem must be
corrected and the unit must be ON; then press and hold the bell key for fifteen (15) seconds. The control will emit a
quick “beep” when the SERVICE indicator and error codes are cleared.

WINE STORAGE ERROR CODE TABLE

CODE INDICATION

05

Upper Cabinet Thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s

06

Upper Evaporator Thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s

07

Lower Cabinet Thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s

08

Lower Evaporator Thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s

10

Upper Cabinet Warm Temperature alarm

11

Upper Cabinet Cold Temperature alarm

12

Lower Cabinet Warm Temperature alarm

13

Lower Cabinet Cold Temperature alarm

15

Sealed System Fault  (evap temperature cannot drop 5° in 5 minutes, 3 consecutive valve activations)

Wine Storage Thermistor Location Codes

THERMISTOR LOCATION

CODE

Upper Evaporator

UE

Lower Evaporator

LE

Upper Compartment

UP

Lower Compartment

LO

MODEL 424

Содержание Wolf 400 Series

Страница 1: ...Troubleshooting Guide 43 subzero com 800 222 7820 400 Service Manual...

Страница 2: ...he true set point by a one degree increment or decrement depending on choice of WARMER or COLDER key respectively 3 Initiate Diagnostic Mode by pressing and holding either COLDER key and the UNIT ON O...

Страница 3: ...ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERV...

Страница 4: ...ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERV...

Страница 5: ...ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERVICE BELL ON SERV...

Страница 6: ...or will appear constant when Diagnostic Mode ends indi cating error codes are logged To clear this and the error codes from the software memory the problem must be corrected and the unit must be ON th...

Страница 7: ...l connections Repair or replace j Check resistance of appropriate compartment thermistor for 30 000 to 33 000 ohms at 32 F 0 C Replace if defective k Initiate manual valve activation mode for appropri...

Страница 8: ...too cold in a wine storage compartment be sure to complete a Temperature Problem Diagnostic Worksheet on the preceding pages before continuing All key strokes necessary to help in diagnosing a problem...

Страница 9: ...hile pressing UNIT ON OFF key Allow time for unit to pull down to temperature Instruct customer Instruct Customer that unit performs best between 60 F 16 C 90 F 32 C a Adjust wine rack b See Door Adju...

Страница 10: ...C 90 F 32 C a Adjust wine rack b See Door Adjustment procedure in section 2 of this manual c Check hinges Replace if defective a Move to correct location b Initiate Diagnostic Mode If EE is dis played...

Страница 11: ...ay Lighting Activated ON 100 Fan Light Switch Wiring Crossed Door Switch Malfunction Initiate Temperature Units Selection Mode to check units of measure F or C selected Check thermistor ohms 30 000 33...

Страница 12: ...ard Bad Data from Control Board Bad Data from Control Board Bad LED Board in Control Panel Door or unit needs adjustment Press release UNIT ON OFF key Check switch electrical connections Check for pow...

Страница 13: ...filter drier must be replaced NORMAL OPERATING PRESSURES Model 424 Normal Low Side Pressures 10 psi to 36 psi Normal High Side Pressures 90 psi to 100 psi PRESSURE INDICATIONS If low side pressure is...

Страница 14: ...ins 4 6 only 3 With lower wine storage COLDER key pressed there should be continuity across pins 2 3 only 4 With lower wine storage WARMER key pressed there should be continuity across pins 3 4 only 5...

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