Fisher & Paykel WA37T26EW Service Manual page 34

479602
40. (00101000) Inner Basket Disengage Fault
While carrying out a basket check, the Motor Control Module has found that the basket is
not engaged even though the pressure sensor indicates that the tub is empty. The Motor
Control Module continues to check for 2 minutes, after which time it displays this fault. The
first two areas to check are the clutch and the pressure tube. If these two appear correct,
then the fault could be in the pressure sensor in the Motor Control Module.
Primary Source:
Action:
Secondary Source: Motor Control Module.
Action:
41. (00101001) Temperature Sensor Fault (Thermistor)
The temperature sensor is measuring temperatures above 230
probably due to a short circuit in the sensor line.
Primary Source:
Action:
Secondary Source: Motor Control Module.
Action:
45. (00101101) Display Memory Check Fault
On power up, the display has checked its memory against a known reference and found
differences.
Primary Source:
Action:
46 (00101110) Display Memory EEPROM check Fault.
The Intuitive
Primary Source:
Action:
48. (00110000) Hot and Cold Valve Coil Faulty
The Motor Controller module has measured voltages from the valve diagnostic circuit that
indicate both the hot and cold valves are faulty. The most likely cause is that the valve
harnesses have not been connected correctly or the valve is open circuit.
Primary Source:
Action:
Secondary Source: Water Valves.
Action:
Tertiary Source:
Action:
49. (00110001) Cold Valve Coil Faulty
The Motor Control Module has measured a voltage from the valve diagnostic circuit that
indicates the cold valve is faulty. The most likely cause is that the valve harness has not
been connected correctly or the valve is open circuit. See fault 48 for service procedure.
Mechanical.
1) Check that there are no clothes or other foreign objects preventing
the clutch from re-engaging. Excessive suds can stop the basket
rotating.
2) If the machine is empty of water, carry out a clutch disassembly
procedure (Refer to section8.14) and check the spline drive.
3) Next check that the pressure tube has not come off and that it is
not kinked.
Replace Motor Control Module.
Thermistor.
1) Check the connection from the thermistor to the Motor Control
Module
2) Check the resistance of the thermistor.
10kΩ @ 77
Replace Motor Control Module.
Display Module.
Replace Display Module.
™
Display has detected a problem with its internal EEPROM.
IW Display Module.
Replace IW Display Module.
Wiring.
Check the valve harnesses are correctly fastened to the valves or the
pins are not bent backwards.
Check the valve coils are not faulty (open circuit).
Motor Controller module.
Replace the Motor Controller module.
o o
F / 25 C or 12.5kΩ @ 68
34
o o
F / 110 C. The fault is
Resistance should be
o o
F / 20 C. Replace if faulty.