Question about Whirlpool 24 in. GU940SCG Built-in Dishwasher

1 Answer

Dishwasher is dead, no start

Whirlpool gu940scgb2. I have power. No lights on front panel. Door switch good. continuity from L1 thru door switch and TCO to terminal p8, k3 open, continuity from p9 top2-5 and from p7 to l2 thru door switch neutral side. Is the control board toast or is there something I can check on it, no obvious burns, cracks or brakes on control board. Is there an other fuse on-board, the one I called TCO is clipped onto the case holding the board and isnot mounted to the circuit board.

Posted by on

  • 2 more comments 
  • mystreetglid Jan 29, 2009

    That is the TCO, correct. I have coninuity to the board at P8.

  • mystreetglid Jan 29, 2009

    I have the schematic for this unit and have checked all the switches and wires. I have 115 volts to the circuit board at terminal P8, power passes through the TCO to get to the board.

  • mystreetglid Jan 29, 2009

    I think I know more about troubleshooting than you, look at the schematic and reread the post. NEXT

  • mystreetglid Jan 29, 2009

    L1 goes thru the door switch then the tco (fuse) to the board. Power is to the board at terminal P8. And I have continuity from P7 on the board back to L2 thru the door switch. I must have a bad board cuz everything checks out but the board wont respond. Is there any board level checks that can be made, yes I have a fluke vom and am proficiant with it, ive been troublshooting controls for 20 years, im looking for suggestions at the board level. Thanks for your help, sometimes I get short, lack of coffee i suppose :)

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,314 Answers

There is a fuse just before power enters the control panelwhere the line goes in check that first bet its open

Posted on Jan 29, 2009

  • 2 more comments 
  • robert samples Jan 29, 2009

    the fuse dont look like a fuse check the other side of p8 do live power test as my instructor at whitlpool says find where the power starts find where it stops in between is the promblem so hook to neutral and follow the power but be careful

  • robert samples Jan 29, 2009

    just trying to help bud if the fuze is good then its possable you got a bad control bd but the tco stands for a thermal cut out this is a fuze that clips to the side of the control panel if i reamber it has a blck wire on it after the door switches

  • robert samples Jan 29, 2009

    there are no checks for the board but some times you can take the ribbion loose from the touch pad and clean it gently with a pencial eraser mico voltage here so tiny resistance will cause promblems also check your warrenty under 2-5 year i think the control bd is under extended warrenty and check the connections at the powerbox if there is a weak connection there will still get voltage but will drop under load

  • robert samples Jan 29, 2009

    send me an e mail at b4829 ref dishwasher ill explain b4829@yahoo.com

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Dishwasher repair. Problem: water in bottom of machine, not draining/ cannot select any mode other than 'Auto'/ usually does not start. What happens when I try to run it: Switch on. On switch lights


I had a similar issue. I took off the drain hose, ran hot water thru it and removed the hose going into the garbage disposal there was some built
build up on the inside, cleanness it good put through houses back together and everything was fine. Hope this

Dec 23, 2014 | Dishwashers

1 Answer

My dishwasher will not work


The door switch, or switches, are sometimes called interlock switches. The door switch prevents the dishwasher from running while the door is open. If the dishwasher won't start, the switch or switches might be defective. To access the door switches, remove the control panel or inside door panel - depending on the model. They can be tested for continuity.

Jun 29, 2014 | LG 24 in. LDS 5811 Built-in Dishwasher

1 Answer

Washer doesn't start / lights up. Breaker is OK, electrical outlet too... What could be the problem ?? Control Board.. Fuse


More than likely it is the computer board. However it can be also caused by the main power switch or the door interlock switch. There is no fuse, the main power supply is part of the computer board. The switches are very easy to check but the front display panel of the dish washer needs to be disassembled as access to the main computer board is required. A multimeter it is also required for the switch verification. Make sure the main power cord of the dishwasher has been unpluged. Removing the front display panel it is not difficult. Once the front display panel is removed you have access to the main power switch and the door interlock switch. Unplug the power cord from the dishwasher and remove the connectors from both switches. Verify continuity on both switches using the multimeter. If you have electronics back ground skills you can also verify if the main computer board has power; for this you need to have both switches connected and the door interlock switch latched. You should be able to measure 110 volts AC on the two wires comming out of the main power switch connecting to the comptuter board.

Good luck!

Jun 08, 2014 | Miele 23 in. Novotronic G841 Built-In...

1 Answer

Kitchenaide dishwasher KUDS25SHBS1


I have listed COMMON problems / reasons why a dishwasher won't start..
The thermal fuse might have blown. The thermal fuse helps to prevent damage to the dishwasher by turning off power so that it doesn't overheat. Once blown, the thermal fuse will have to be replaced for the dishwasher to work. The thermal fuse is usually located in the control panel on the control board or mounted to the bottom of the tank behind the lower panel. The thermal fuse can be checked for continuity.
The door switch, or switches, are sometimes called interlock switches. The door switch prevents the dishwasher from running while the door is open. If the dishwasher won't start, the switch or switches might be defective. To access the door switches, remove the control panel or inside door panel - depending on the model. They can be tested for continuity.
If the dishwasher does not start, the door latch assembly might be defective. These are normally made of plastic and cannot be repaired. If the door won't latch and the door latch is broken, replace it.
The main control board provides power to nearly every component of the dishwasher. If the dishwasher won't start the main control board might be defective. You should first check for more common parts. Many times control boards are replaced unnecessarily because the problem was not diagnosed properly.

Dec 15, 2013 | KitchenAid Dishwashers

1 Answer

I have a whirlpool dishwasher, model du1345xtvb5 and it wont turn on and it has power to the unit.


Sounds like a faulty door switch, difficult to reach, you have to remove outer door panel & the 2 screws underside of the control panel. Door switch sits in a plastic holder middle of the door, it is activated by a 'fork' on the machine, and has a plastic roller in front of it.
Same type of micro-switch found in microwaves etc. Good luck!

Mar 05, 2013 | Whirlpool Dishwashers

1 Answer

Electronic of thermador dwhd94bp not working


Check the door interlock switch. Most often they run the L1 line through the door switch. If shorted, the unit appears dead. Good Luck, Ericf

Mar 24, 2012 | Thermador 24 in. DWHD94BP Built-in...

1 Answer

Dishwaser won't start


Check the door interlock switch. They normally run the L1 line through the door switch and if the door switch shorted, the dishwasher appears dead. Good Luck, Eric Campion

Mar 24, 2012 | Dishwashers

1 Answer

My Whirlpool DU1055XTSQ has stopped working. The


Check that the door switch is operating properly, open and close the door a few times, push in on the door with a good amount of force while trying to start the machine, the door switch will not let control power to the panel if it is not getting triggered, to let the processor know that the door is closed and it can start the cycle.

Good Luck !

Feb 11, 2010 | Whirlpool DU1055XTSQ Built-in Dishwasher

2 Answers

'Dead' DU1100XTP


have you checked the door switch? it controls the power to the dishwasher so it won't run while open. that is a common issue with all dishwashers.the door switch runs to the motor controlling the power...good luck

Sep 25, 2007 | Whirlpool 24 in. DU1100XTPS Built-in...

1 Answer

Problems with Whirlpool dishwasher model GU1500XTKB0


will these units (silo and jtrip) start back on their own? if so, it is likely they are heating the water.
otherwise it sounds like a logic board, unless there is a defective door switch or sensor issue.
electronics seem to be a recurring problem with whirlpool.
i would ask whirlpool (electorlux) to either buy it back or fix it.
good luck
mark

Jan 09, 2007 | Whirlpool GU2400XTP Built-in Dishwasher

Not finding what you are looking for?
Whirlpool 24 in. GU940SCG Built-in Dishwasher Logo

Related Topics:

511 people viewed this question

Ask a Question

Usually answered in minutes!

Top Whirlpool Dishwashers Experts

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Mike Cairns
Mike Cairns

Level 3 Expert

3053 Answers

Michael Thomas
Michael Thomas

Level 3 Expert

3051 Answers

Are you a Whirlpool Dishwasher Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...