Electrolux T5190LE Service Manual page 77

12:4 INLET AIR SENSOR - SHORT-CIRCUITED
The error code is shown if the analog input INLET AIR TEMP (PT100) is reading a resistance of less than 100 Ω.
Probably caused by broken PT100 sensor or damaged wiring.
If the inlet air temperature in the SHOW INPUTS menu show a temperature of 0 °C the inlet air sensor is shorted.
When the inlet air sensor is restored the error code is automatically reset and the ongoing program will continue.
A long press on the control knob/start button will make the control system reset and ongoing program will be ended.
The error can be trigged if:
• The sensor, harness or connector is shorted. The sensor shall measure around 110 Ohm in room temperature,
see table. (Measure direct over the sensor connectors).
If the measure of inlet air sensor is OK, but there is still an error code:
• Check the harness, connectors and functions by reading the electrical schematic and by using the SHOW INPUTS
menu when the machine is in service mode.
Temp - Sensor resistance
0°C / 32°F - 100 Ω
20°C / 68°F - 107 Ω
30°C / 86°F - 112 Ω
200°C / 392°F - 176 Ω
12:5 OUTLET AIR SENSOR - OPEN
The error code is shown if the analog input OUTLET AIR TEMP (NTC) is reading a resistance of more than approxi-
mately 26.7 kΩ. Probably caused by broken NTC sensor or wiring.
If the outlet air temperature in the SHOW INPUTS menu shows a temperature of -10 °C the outlet air sensor is open.
When the outlet air sensor is restored the error code is automatically reset and the ongoing program will continue.
A long press on the control knob/start button will make the control system reset and ongoing program will be ended.
The error code can be trigged if:
• The sensor, harness or connector is broken. The sensor shall measure around 5 K Ohm in room temperature, see
table. (Measure direct over the sensor).
If the measure of outlet air is OK, but there is still an error code:
• Check the harness, connectors and functions by reading the electrical schematic and by using the SHOW INPUTS
menu when the machine is in service mode.
Temp - Sensor resistance
-10 °C - 26.7 kΩ
15 °C - 7.6 kΩ
20 °C - 6.0 kΩ
25 °C - 4.8 kΩ
30 °C - 3.9 kΩ
100 °C - 0.33 kΩ
Service Manual
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