Alarm System; Party Mode Time Exceeded - Whirlpool WRX-17TM Service Manual

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5.4. Alarm System

Communication Failure Alarm : This failure mode is shown at the LCD display through the failure code – "CF".
this failure is caused due to a communication fault between the interface board and the electronic control. to
disable it, just press the turn off alarm key (OK). when constant, check the poor contact between
terminals/connectors, interrupted wires and then the interface board – LCD.
Service Call Alarm: This alarm status is straightly connected to a wrong reading, short circuit or NTC open
from any of the temperature sensors, in this situation the electronic control system activates the alarm icon and
shows the failure code regarding to the sensor in fault (see below) at the LCD display, as follows:
Alarm Code
If the product retrieves the normal operation at the first hour, a momentary reading fault may occur, but without
necessity of intervention.
When constant, there is the chance of a real sensor failure, being necessary to check its source, that could be
related to: poor contact between terminals, connectors, interrupted wire, and then the sensor itself that might be
open or in short circuit and has to be replaced (see item – sensor replacement).
During constant alarm, the electronic control will assume a safety routine, as in normal cycle, trying to keep food
conservation, however will work as follows:
Compressor and fan motors (refrigerator & freezer) will be on for 20 minutes and then will turn off
-
for 15 minutes;
- Interval set between defrosts will be fixed (not adaptive) in every 5 hours of the compressor activity;
Every defrost time will be fixed in 10 minutes.
-
Note: this routine happens independent of which sensor has failed, and can be any of them (refrigerator, freezer
& defrost)

5.4.1. Party Mode time exceeded

After exceeded 30 minutes of predetermined time to the Party Mode, product will raise the alarm, but its
operational properties will not be changed. To disable the Alarm, press OK key
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Sensor reader
01 Refrigerator sensor
02 Defrost sensor
03 Freezer sensor
Temperature icon indicator
Refrigerator compartment
Refrigerator compartment
Freezer compartment
12