Electrolux TD75 - Troubleshooting Sensor Errors (E 03, E 04, E 17, E 18)

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Troubleshooting
E 03 – The input sensor has short circuited
Error description
The error code indicates either that there is a short circuit in the PT-100 sensor connected
to the circuit board, or in the wires from the circuit board to the PT-100 sensor.
The error may also be caused by a defective detection circuit on the circuit board.
The dryer stops operating.
Error analysis
0
50
100
150
200
250
0
C
1 2 3 4 5 T2 (V)
T2 T1 GND
E – 03
2. Defective
PCB?
Measure the resistance
of the PT100 sensor and
harness between P18-3
and P18-4 on the PCB.
Is the resistance 110 Ω at
20°C (68°F)?
Replace PT100
sensor or harness.
Go to step 2.
NO
YES
YES
Replace the PCB.
1. Defective
PT100 sensor or
harness?
Alternative
Measure voltage between GND and T2