Home Repair Manuals Hotpoint WMA32 Dismantle & Repair
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2.
WHAT PARTS LOOK LIKE AND THEIR FUNCTIONS; IN
BREIF.
2.1
Control Module
Attributed faults
•
No Motor Action
•
No Heater
•
Machine Dead
•
Most faults could be associated with it
Disconnect appliance from the main power supply before working on it
This is the most complex part of any machine and is pre-programmed with the
functions of the appliance it is designed for. Because of it’s complexity it is very
delicate and susceptible to static electricity, therefore should be handled with care.
Although it controls most of the functions on a machine it is not very often the cause
of a problem, so other areas should be examined first. If you do need to fit a new one:
Instructions on how to configure these modules are included in the box (MAKE
SURE IT IS THERE BEFORE BUYING). These modules fit a number of models and
without the configuration instructions they are worthless.
If one or more of the tracks are blown it is most likely to be attributed to a fault
somewhere else on the machine, so if your appliance is under 5 years old it would
be cheaper to call out Hotpoint. (If you want to have a go at fixing it
……Remember).
A blown track would almost certainly represent an electrical fault, so check.
Wiring connections on Module, Motor, Pump, Pressure switch, Door switch
Heater & solenoid valves.
Check for loose or worn cables, signs of rubbing either on the wire sheathing or
on any adjoining item, (cabinet, motor, on or around the front balance weight,
ect).
Or it could be a component that is at fault, but to blow a track would normally
indicate a short circuit somewhere in the part.
If this is the case the motor or pump would have a tell tale burnt smell about
them, so give them a sniff.
Do an electrical test on the heater. Connect one cable on your test meter to a metal
part of the cabinet and the other cable to one of the heater terminals, set your
meter to meghomes M
Ω
and press the button. If there is no change in the dial
then the heater is OK but if the needle jumps across the dial, the heater is shorting
out, and needs changing.
The door switch and pressure switch may have shorted out internally, look for any
sign of burning on the exposed parts of the terminals.
Unless the solenoid valve has caught light, it is usually just the insulation that
breaks down and they stop working. This in its self would not cause a track to
blow on the control board.
