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22 1115WC, 1175WC
Troubleshooting Guide
DANGER
ELECTROCUTION HAZARD
Never attempt to repair or perform maintenance on
the unit until the main electrical power has been
disconnected.
Troubleshooting - What to check when problems occur:
PROBLEM POSSIBLE CAUSE REMEDY
Unit does not operate and
electronic display is blank.
No electrical supply Plug unit in or check circuit breaker.
No interior light Loose or burned out bulb Tighten or replace bulb (See MAINTENANCE; LIGHT
BULB REPLACEMENT).
Unit not cold enough. Check
temperatures (see OPERATION for
approximate temperatures).
Control set too warm Set control to a cooler setting (See OPERATION). Allow
24 hours for temperature to stabilize.
High ambient temperature or
exposure to direct sunlight
Reposition unit.
Airflow to front grille blocked Airflow must not be obstructed to front grille (See
OPERATION).
Dirty condenser coils Clean condenser (See MAINTENANCE; CONDENSER
CLEANING).
Light staying on Adjust door (See MAINTENANCE; DOOR ALIGNMENT
CHECK AND ADJUSTMENT).
Door gasket not sealing properly Adjust door (See MAINTENANCE; DOOR ALIGNMENT
CHECK AND ADJUSTMENT).
Unit is too cold. Check temperatures
(see OPERATION for approximate
temperatures).
Control set too cold Set control to a warmer setting (See OPERATION). Allow
24 hours for temperature to stabilize.
Electronic display is blank and
interior light is OFF with door OPEN.
Unit is in blackout/Sabbath mode
(not Star K certified).
Exit blackout/Sabbath mode (not Star K certified)
(See OPERATION).
Electronic display is blank and
interior light is ON with door OPEN.
A display function has changed. Touch and hold the WARMER button and touch and
release the ON/OFF button three times, then release the
temperature button. The display should become visible.
Electronic display shows repeating,
randomly flashing symbols and
partial characters.
A factory control mode has been
inadvertently entered.
Touch and hold the warmer temperature button and
touch and release the LIGHT button three times, then
release the temperature button to exit the factory
control mode. The set-point temperature should now
be displayed.
Electronic display shows:
0, 1 to 16, or 99
A factory control mode has been
inadvertently entered.
Repeatedly touch the WARMER button to advance any
number shown to 99 and touch and release the LIGHT
button. The set-point temperature should now be
displayed.
Electronic display shows one or
more of the following:
E1, E2, E4, E5, E6, E7, E8, E9, E10, P1.
The unit is displaying an error code. Record the error code(s) displayed and call for service.
ULIN_016357_30088.fm Page 22 Tuesday, March 14, 2006 2:17 PM