Temperature Sensor (Pt100) B20, B21, B22 And Safety Sensor B3; Contactors Km6, Km7 & Km8 - Electrolux IC44832 LF Service Manual

Service
Manual
Before any intervention it is essential to cut off all supply of the machine
Repair
heating elements :
Checking
- Check the wiring and the power supply.
- Check the ohmic value of each resistors with a ohmmeter. If the ohmic value is equal to 0,
it means that the resistor is faulty.
Replacing
- Remove the right and left covers.
- Disconnect the heating elements on the left-hand side.
- Remove the right and left end flanges.
- Pull out the resistor bracket and the heating elements from the ironing cylinder.
- Change the faulty resistor(s).
- Refit the parts in the reverse sequence.

Temperature sensor (pT100) B20, B21, B22 and Safety sensor B3 :

Checking the B20, B21, and B22 temperature sensors (PT100) )
- Check the wiring.
- Using an ohmmeter, check the sensor's ohmic value. For a room temperature 21°C,
the ohmic value must range from 107.79 to 108.57 ohms. Otherwise, the sensor is
faulty.
Checking the B3 safety sensor
- Check the wiring.
- Using an ohmmeter, check the ohmic value of the sensor. If the ohmic value is
different from 0, the sensor is faulty.
Replacing
- Disconnect the faulty sensor from A1 control display
- Remove the sensor from its location, accessible under the feeding table.
- Connect the new sensor on A1 control display.
- Fit the new sensor in its appropriate location
Contactors KM6, KM7 & KM8 :
Checking
- Check the wiring.
- Power on the machine, supply the contact coil manually, and check the contacts. If
the contacts do not stick, this means the contactor is faulty.
Replacing
- Remove the left cover.
- Disconnect the wires on the faulty contact.
- Remove the faulty contact, and replace.
- Refit the parts in the reverse sequence.
04106016/GB
43-09
electrical heating
(electricity, steam, water, gas, compressed air...).
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