Fisher & Paykel WA37T26EW Service Manual page 32

479602
10. (00001010) Temperature Sensor (Thermistor) Error
The temperature sensor may be open circuit or the ambient temperature is below 14
10 o C.
Primary Source:
Secondary Source: Motor Control Module
Action:
12. (00001100) Flood Protection Error
The Motor Control Module has found the water level to be above the flood level and tried to
pump the excess water out. (Under extremely high flow rate conditions the machine may
overfill during the "top-up" routine in agitate.) After pumping for 30 seconds, it has been
unable to lower the water level below the flood level. Either the water valves have stuck on
and are letting water in at a flow rate that is higher than the pump can handle, or the pump
is blocked and can't remove the excess water.
Primary Source:
Action:
Secondary Source: Pump system.
Action:
Tertiary Source:
Action:
21 (00010101) Water Valve Over Current
The Motor Control Module has detected that the water valve circuit is drawing to high a
current.
Primary Source:
Action:
Secondary Source: Motor Control Module
Action:
36. (00100100) Water Leak Fault
The Motor Control Module has needed to top up the water level more than 4 times during
agitate. This is excessive, as normally only one or two top ups are required to replace the
air that has escaped from a full load during agitate. The most likely cause is that the
machine is siphoning. The other alternative is that the machine has developed a leak.
Primary Source:
Action
Secondary Source: Mechanical.
Action:
Tertiary Source:
Action:
Thermistor
1. Check the connection of the thermistor to the Motor Control
Module.
2. Check resistance of temperature sensor. Resistance should be
o
10kΩ @ 77 F / 25
faulty.
3. Replace Motor Control Module.
Water Valves.
If the water valves are on continuously, check that the water valves
turn off mechanically (remove power from machine).
Check the pump for blockages and drain hose for correct height and
kinking
Motor Control Module.
If water valves are being driven on electrically, replace Motor Control
Module.
Water valves.
Check that the resistance of the water valves are
Replace the Motor Control module.
Pump System.
1) Check the height of the drain hose outlet. Minimum 33.46in /
850mm, maximum 47.24in / 1200mm
2) Check that the hose guide is fitted and check that the hose does
not protrude more than .78in / 20mm beyond the guide.
1) Check the pressure tube connections on the outer tub and Motor
Control Module.
2) Check that the drive shaft seal and the pump housing seal have
not developed a leak.
Motor Control Module.
Replace Motor Control Module.
32
o
C or 12.5kΩ @ 68
o
F / -
o o
F / 20 C. Replace if
o o
64Ω @ 68 F / 20 C.