Question about Microwave Ovens

5 Answers

It makes ice but the gride it falls on is not comming on (heating) to cut the slab of ice. How do i check to see if its good? And when does it come on? what triggers it to heat up? the power looks like it comes from the transformer but im only getting like 5 volt on my meter. ghost voltage? shows good continuity across the grid, so its not broke. Thanks

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  • pool_player4 Feb 06, 2010

    I have a KitchenAid ice maker that is not cutting the ice on the wire grid. It appears that its not heating up. I checked continuity and thats good but still not comming on? Where does it get its power from, the transformer? what kina power supply should i be getting? and what is the sequence of operation? When does the power come on and how long? Can i check it by using my meter on the supply probe/connection? Model number kuia18nnjs4 serial number ep5021676

  • pool_player4 Feb 07, 2010

    My kitchenAid ice machine model # is kuia18nnjs4 serial # ep5021676. Where is the thermostate located?

  • pool_player4 Feb 07, 2010

    model # kuia18nnjs4 serial #ep5021676

  • pool_player4 Feb 07, 2010

    it ejects a solid sheet of ice and then the heater cuts the cubes but it doesnt get hot?hw can i check the heater? and is it worth replacing?

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The heater never gets hot but should always be warm to the touch. Remove the screws 1 on each side of the heater shield and then there should be 2 thumb screws at the back area of the heater. Slide the heater forward and disconnect. Check for broken heater cable by viewing and by ohm scale on any ohm setting. Should read continuity since this is solid wire. If broken replace with resrting kit.

Posted on Feb 07, 2010

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Dear Pool Player4,

This posted as "Generic problem for all microwave Ovens" It sounds like you are having issues with a clear ice maker. If you can tell me the brand, model (and possibly the serial number) I will do my best to help you. If it is a Marvel or Viking, the the transformer getts power from the control board when it goes into harvest and stays powered for 35 minutes after returning to production mode. the control board makes the decision to go into harvest/production based on evaporator plate temperature as sensed by a thermistor located on the botton of the evaporator plate. The transformer receives 120v AC and puts out 12 volts AC. And yes, if the board is not trying to power the transformer wou will see a potential with a meter but no significant current to power the grid.

If this is a different brand I will have to do some research and get back to you.

Posted on Feb 10, 2010

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If this is a whirlpool icemaker then you can remove the front cover of the ice maker and place a jumper wire from T to H on the module for about 15 seconds (you will hear a click when the thermostat is bypassed). You can then remove the jumper wire and the unit should cycle by itself. This will bypass the thermostat and the unit will jump directly into a harvest mode. If it ejects the cubes then you have a bad thermostat in the ice maker. Of it as soon as you remove the jumper wire the rake stops turning then you also have a bad ice maker. Either way if you have cubes stuck you will be better off just replacing the unit rather than trying to piece it out. Its nearly the same cost and 1/4 of the time to swap the unit. You will just want to make sure you are getting 120v to the unit.

The only other thing I would check is to make sure your lever arm did not pop out of position.

Next time if you could post your make and model number it would make the diagnostics and component testing much more specific I can look up your model number and advise you directly on your specific unit. This is why most experts will tend to shy away from these type of generic questions because there are many possibilities.

Good luck hope this helps _MJ_

Posted on Feb 07, 2010

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There is surely a thermostat that will cutoff when temperature is reached.
To test the thermostat, disconnect power, and read impedance on the thermostat after disconnecting its contacts. If it reads low or zero impedance, and not infinity, then the thermostat is good. If the thermostat is open at room , then it is faulty.

I can be more specific if you provide full model number.

Posted on Feb 04, 2010

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Good day,
I see it's posted in microwave ovens but you have to be talking about an ice machine.
To the best of my knowledge you should have approx. 9 volts to the grid. It's low voltage since it's exposed.
It is on all the time.
Ghost voltage ??? sounds possible since the 5 volts doesn't ring a bell with me.
The grid assembly's do go bad. Could be the wires or simply a lot of corrosion. Also check the plug carefully.
But I'd start with the voltage supply. If it's a commercial unit, most refrigeration supply houses can supply the correct info for you.

Posted on Feb 07, 2010

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