My dishwasher is only 2 years old. My small coffee shop is in an area where we have large quantities of lime. At this point in time the repair people have been out two times and this is not fixed. There appears to be no water being pumped into the dishwasher where it will be heated prior to washing. Also the temp gauge is not working all the time. With no water entering, the small amount of water in there is rising in temperature quickly if the gauge is working. The technician that have been in are telling me the small tank is heating the water and when we turn the washer on that will flow into the tank. That does not happen. The manual says to de-lime the machine but there are no instructions as to how to do this. If we pour water into the dishwasher and allow it to heat we can wash the dishes. The water used to flow in and fill up the bottom of the dishwasher and then it was heated for washing. How do I fix this?

Gerald Griffin

• 248 Answers
• Posted on Nov 19, 2007

SOURCE: MayTag Dishwasher Quiet Series 300

If it is not filling enough, you may need a new water valve. It may be plugged.

Samyfam

• 379 Answers
• Posted on Sep 12, 2009

SOURCE: Dish washer fills and then drians without washing

If you're sure it is heating the water, then it sounds like the wash motor/pump has failed. If you've worked on washing machines and/or dish washers before, this is potentialy a DIY job - the Haynes Dishwasher manual is very good, and parts can be found on the internet.

The reason for cheking it is actually heating the water is that the symptoms sound very similar to those of a failed heater = fill, pause, empty, stop usually accompanied wth an error code. Error code will be presented by a number of flashes of a lamp, or a number on a display panle depending whch machine you've got.

SOURCE: Do these 'portable' dishwashers 'heat' water prior

Most dishwashers require a minimum 120 degree inlet water temp. The heating element will boost this up during the main wash cycle to aprox 140. Do not hook a dishwasher up to inlet water temps above 150.

SOURCE: dish washer won't kick into wash mode . heating

First check you float valve.

Look inside the machine on the floor will be a small float valve. Looks like a small upside down cup. Lift it and clear anything from underneath.

The valve is a safety feature to stop the machine from over filling. If anything gets under the valve it will jam open and stop the machine.

Not working?

Check for a clog internal or external.

Scoop as much water our as you can. Open the cover on the floor of the machine. Usually just turns and lifts out or snaps out some are screwed in. Take your time and try not to force anything. Look for a clog there.

Check for clog in the drain. The dishwasher will connect to the drain under your sink and run either directly to the drain or into your disposal unit. Remove open the connections and look for a clog. Clear if necessary.

Not the clog?

Water is pumped out by the machine via an internal pump located under the base. If it fails the water will collect until it trips the float valve. First scoop out all the water from the machine and run it again. If water comes in and it runs to the point it fills again and trips the float then either the pump or timer is faulty.

Pump check.

Remove the machine. It will be held in place by screws directly into the counter top. You may have to lower it to get it out. The front feet turn with a wrench to lower.

Turn off the water supply. Run the unit again until you get to the drain cycle.

Connect a test light or voltage tester to the terminals at the pump. Check for voltage at the pump. If you have voltage replace the pump. If no voltage the timer is faulty.

Timer problem?
Some can be replaced as a unit others are integral to the control panel. Turn style can be replaced. Touch control can not.

For more help go to my more detailed tip "Dishwasher will not run. DW101 how to fix". Or click on my profile and you will find the link there.


Hope this helped you. Please take the time to rate this tip.

Thanks,

Adrian

SOURCE: We discovered broken glass dish in bottom of

sounds like you have broken glass in the wash pump you will have to remove pump from sump and clear also check the drain pump.good luck let me know how it goes