After 8 years without a problem, our MAH4000 front loader - set to COLD/COLD wash/rinse - filled with very warm water and overflowed. The machine also shut itself off as it entered the first rinse cycle.
I know the machine has a thermistor to regulate water temperature via water solenoid valves, and a water level switch to control and stop water flow into the tub. Can you help me understand how these control features are related to produce the observed problem(s)? Thanks!
Hi,
Based on your post, two (2) concerns:
Rather than randomly check the components, it might be to your advantage to:
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards. Thank you for using FixYa.
The inlet valve might be stuck or need to be replaced also check the thermostat
The inlet valve has to be checked or replaced if required
Hi sir.. see this usefull link for more details of control features : www.amazon.ca/Maytag-Washer-Repair-Do-Yourselfers/dp/1890386456 if any assist i am there to solve . thank u sir.. please vote me..
Check the pump and the water level switch.
If it does not stop filling it can be a stuck inlet valve, or a faulty water level switch.
See here from Repairclinic:
"if your washer is overfilling, check these:
Water-inlet valve
Water-level switch
Water-inlet valve
A
defect in the water-inlet valve may mean that it's no longer able to
shut off completely when the electricity has been turned off to it. If
this occurs, the valve may leak and drip water into the clothes tub. In
time, the water may accumulate substantially. If this happens, you need
to replace the valve.
Water-level switch
A
defect--or an obstruction--in the water-level switch may mean that it
can't tell the water to shut off. So the machine overflows. This switch
senses the water level in the clothes tub. It's usually a diaphragm
device with a small, clear tube attached between the switch and the
bottom of the washer's outer tub. As the water level in the tub
increases, the pressure on the air in the tube increases. When the
pressure reaches a certain level, it activates the switch, shuts off
the water, and signals the timer to begin the agitate cycle. You can
either clear any obstruction in the tube or replace the water-level
switch."
Here you foind all parts and exploded views for your appliance.
If you need to call a technician you can phone the number listed on the owner manual.
It is not the termistor, it is probably the inlet valve , that is stuck and does not stop the flow of hot water.
Here is a general diagram for a Maytag front load, move the mouse on the picture and find the inlet valve, at the back, that is probably faulty.
What regulates the flow of water coming into the machine is the water inlet valve, what happens on your machine is that when the inlet valve opens to pump in hot water, it get stuck and overfills.
If you do not want to do it yourself check the owner manual and call the service number printed on the owner manual.
The technician will test the solenoid that activates the valve and the valve itself, that is probably faulty.
If you want to do it yourself, instead see here
How to Test the Inlet Valve - ACME ...
In brief, he only way to be sure it is the inlet valve is by testing the solenoids that activate the valve, get a Multimeter and follow instructions here to test the valve.
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I need more help. I don't want to buy new parts until I'm sure I fully understand the problem. What would cause the washer to overfill with water at a temperature not selected?
What am I checking the inlet valve for? How do I confirm its a failed part?
Can confirm that inlet valves are not stuck. If the thermostat ( thermistor?) is faulty, will the water valve unit continue to pass water in an attempt to regulate the tempeature, causing the water to overflow in the tub? In other words, will the thermostat control override the water level switch?
That didn't answer my question. Still not sure I have the problem understood.
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