White Knight B96M8W Manuale utente

Trouble Shooting & Safety Guide

Wiring Diagram

Exploded Views

Parts List

September 2016

8kg

Condenser Tumble Dryer

White Knight - B96M8W

SERVICE MANUAL

Note: Please read before servicing the unit. Any problems: contact your service centre

CONTENTS – B96M8W

2. User error checklist

3. Control panel connection diagram

3.1 Lack of display on control panel

3.2 Drum does not turn but the control panel displays correctly

3.3 Heating system failure

3.4 The drum turns but the appliance fails to dry

3.5 The dryer makes an abnormal noise when operating

3.6 The dryer produces an abnormal smell when operating

3.7 The LED displays when the dryer is operating

3.8 Error warning codes

4.1 Disassembly warnings

4.2 Disassembly methods

5. Wiring diagram

6. Exploded view

2. User error checklist – please check prior to service

Symptoms

Check whether:

The drum does not rotate

There is power to the appliance

The door is closed

The correct program has been selected and the start button has been

pressed

The dryer gives out abnormal

heat

The heat exchanger is assembled and fit correctly

The maintenance cover is locked in place

The door is sealed correctly

The clothes are creased or

shrunk

The dryer is overloaded

The correct program has been selected

3. Control panel connection diagram

P0 Live and neutral

P1 Load moisture sensor

P2 Motor L + heater (700W) L

P3 Drum light and pump

P4 Door switch

P5 Heater N+ motor N

P6 Heater (1600W) L

P7 Water level sensor, Inlet thermistor and Exhaust thermistor

3. FAULT FINDING

3.1 Lack of display on control panel

Check if power is NO YES

getting to the appliance Check fuse for continuity Replace fuse

YES

Switch off the appliance NO Check power cord and YES Replace the mains cable

Check for 230V between loom harness for damage or loom harness as necessary

pins P0 on PCB

YES YES

Replace the PCB Check the RFI filter for damage

3.2 Drum does not turn but the control panel displays correctly

YES

Check if the belt is loose or damaged Re-fit or replace belt

YES

Check if the terminals of P2 are loose Ensure that the terminals are connected correctly

YES

Check the front support wheel for damage Replace the front support wheel (including wheel shaft)

YES

Check if the capacitor has correct value Insert or replace capacitor

and is connected to the loom

YES

Check if the tension spring Install or replace the tension spring

YES

Check the motor for damage Replace the motor

YES

Check for blockage/binding when drum rotates Check and remove blockage

YES

Check for damage to the drum bearing Replace the drum bearing assembly

YES

Check any damage to door switch Replace the door switch

YES

Check loose connections or damage to loom Re-assemble or replace the loom

3.3 The heating system does not work

YES

Check if the “cool” program is in operation Re-test the appliance in a heating program

YES

Check if terminal P4 is loose Re-attach terminals

YES

Check if the loom is damaged Replace the loom harness

YES

Check if the Inlet thermostat on the heater Replace the heater subassembly

assembly is damaged

3.4 The drum turns but the appliance fails to dry

Is the ambient temperature higher than 35°C

YES

Check the correct program has been selected Select the correct program

YES

Check if the dryer is overloaded The load placed in the drum must not exceed the

maximum load rating stated in the instruction book

YES

Check that the filter is clean Clean the filter

YES

Is the heat exchanger blocked Clean the heat exchanger

YES

Is the Inlet thermostat damaged or has the thermal Reset the thermal cut-out if tripped. Replace the heater

cut-out tripped subassembly if damaged

YES

Is the heater damaged Replace the heater subassembly

YES

Check the load moisture sensors Clean and then check. If still faulty, replace.

3.5 The dryer makes an abnormal noise when operating

Check to find the source of the noise

YES

Check if the screws holding the lifter to the drum Tighten the screws accordingly

are loose

YES

Is the front support wheel damaged Replace the front support wheel subassembly including

shaft

YES

Is the tension spring connected between the Reassemble the tension spring

motor and the base

YES

Is the motor noisy Replace the motor

YES

Check if the fan is loose or damaged Reassemble or replace the fan

YES

Is the drum bearing/drive shaft damaged Replace the drum assembly

YES

Does either the drainage or overflow Ensure the hoses are positioned correctly

pipe rub on the rotating drum

3.6 The dryer produces an abnormal smell when operating

YES

Is there any sign of deposits on the heater Clean the heater

YES

Is the main drive belt slipping Replace the main drive belt. Check the spring providing

tension (between the motor and base)

YES

Has the motor stalled Check for any signs as to why the motor stalled (e.g.

drum jammed). Replace motor if no issues found.

YES

Check for any signs of overheating of electrical Replace any parts as necessary

components

3.7 The LED displays when the dryer is operating

YES

Check if the bottle is full Empty the bottle

YES

Check if the pump is connected correctly Attach the terminals accordingly or replace the loom

Check PCB for any signs of damage Check connections on PCB and replace if necessary

YES

Check if the pump is damaged or blocked Replace or clean the pump

YES

Check if the water level sensor is damaged Replace the water level sensor

3.8 Error warning codes

Error ‘code’ Error description Parts to check

Bottle full

indicator lit

Bottle is full of water

and bottle full indicator is lit

Check the water container, pump and water level

sensor

E30 Heater not working Check the heater and motor

Clean filter

indicator lit Filter mesh is blocked Clean the filter mesh and restart the machine

E32 Load moisture sensor not

working Check the moisture sensors and restart the machine

E33 Inlet thermistor not functioning

correctly

Check the inlet thermistor (on heater assembly) and

check associated connections

E34 Exhaust thermistor not

functioning correctly

Check the exhaust thermistor (below filter) and check

associated connections

4.1 Disassembly warnings

The mains cable must be disconnected from the power supply when disassembling or repairing the

machine.

The loom harness and terminals used must be for the correct wire size and the correct tools must be

used to crimp any terminals onto the harness. Insulation tape must be used where appropriate.

When attaching terminals to the mating connectors, always ensure that they are pushed fully on.

When attaching a wire via a screw terminal, ensure that sufficient wire is underneath the screw

terminal. Ensure that the screw is tightened satisfactorily.

The loom harness should not touch any moving parts or sharp edges. The wiring route around high

temperature objects (e.g. motor) should be followed as per the initial construction.

Always use the specified screws

4.2 Disassembly methods

1. Control panel assembly disassembly

1. Unfasten the two screws at the rear of the

top cover and slide top cover backwards

2. Remove the bottle

3. Remove 4 screws at the front of the dryer

from the control panel and cross brace

4. Remove 2 screws inside the slots on the

control panel

5. Remove all of the connections from the

back of the PCB

6. Remove the screws holding the PCB to the

control panel. The PCB’s can be removed by

unscrewing and unclipping where necessary.

2. Disassembling the RFI filter and water level sensor

Disassembling the RFI filter:

Remove the loom terminals from the filter. Unfasten

the two screws from the filter in order to remove the

filter from the upper bracket.

Disassembling the water level sensor:

Remove the top cover (screws at rear of appliance)

and left-hand side panel (screws along top, at rear

and underneath appliance) from the appliance.

(1) Pull out the drainage hose connector from the

pump cover.

(2) Remove the pump cover(s)

(3) Remove the nut on water level sensor to

allow the water level sensor to be removed

from the pump cover. Unclip the wires.

3. Disassembling the door

1) Remove the screws holding the hinge to the front

panel. Lift the door to extract the hinge from the

panel and place on a soft surface to avoid scratching

the door.

2) Remove the screws on the inside of the door.

3) The door should now be able to be stripped into

its constituent parts.

4) Push the two pins of the hinge to separate the

hinge..

4. Disassembling the heater

1) Remove the screws from the rear panel

2) Remove the screws from the air ductwork below

the heater

3) Remove the top cover by unscrewing the screws

at the back of the appliance.

4) Disconnect the loom harness from the RFI filter

5) Disconnect the terminal from the heater connector

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