Question about Dacor ED24 Built-in Dishwasher

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Error code f4 is the error code i am getting...can't find out what this indicates.

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Re: error code

Thanks for responding...I figured out it was the drain line being air locked...blew it like a champ.

Posted on Jan 31, 2008

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Re: error code

What exactly is it doing out of the ordinary?

Posted on Jan 28, 2008

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Error message F4

For some reason, when you post a question and supply in the details of model numbers and brand in the separate dialog box, those details are not posted with your question in Fixya. You have to include such details in the question itself.

Error messages are brand and sometimes model number specific. Google "Brand name Model Number error message F4". You might use the brand and model number to search for a user manual on the brand name site. Possibly, the error codes would be listed in the manual. You might similarly search for a service manual.

Meanwhile "back at the ranch", here is a DIY fixit site regarding dishwashers:

Aug 26, 2015 | Dishwashers

1 Answer

Getting error E1 checked all as per manual but still getting it

Whirlpool dishwasher F4 F8 FA error code ... - YouTube

? 1:57
May 27, 2012 - Uploaded by ukanfixit Although the Whirlpool dishwasher F4 error code is "not draining" it is actually a .... switch situated? my Whirlpool showsE1 and F8 error codes.

Aug 24, 2015 | Whirlpool Dishwashers

1 Answer

Hi! I have Whirlpool ADP6948 dishwasher. It's


F4 points at at a drain problem, often the problem is caused by a dirty or defective pressure switch. Before replacing the pressure switch it is necessary to test the drain system.

First try turning power off from circuit breaker for few minutes and see if that is enough to clear the error code.

Turn power off from circuit breaker (or disconnect power cord) and clean the drain well inside the tub. Remove any water present in the tum. Check also the drain hose at the back of the appliance and make sure it is not kinked or blocked.

If that does not work remove the kick panel at the base of the dishwasher, locate the pressure switch and clean the hose connected to the pressure switch. The pressure switch is the device that detects water level, determining when to start and stop the drain pump. The pressure switch is a small plastic switch connected to a long rubber hose. If the hose gets blocked with detergent or if the switch is defective you get f4.


Try resetting the appliance to clear the error code.
If that does not work clean and check the drain system.
If still no luck check the pressure switch.

Disconnect power before doing any maintenance.



Aug 31, 2011 | Whirlpool Dishwashers

1 Answer



If you have F4 and the sump is full of water, there's a good chance the drain pump is being jammed by a broken bit of glass or pottery. However, if the appliance is empty of water and F4 error code is flashing, where do you go from there?

The electronic control (module pcb) does a self check of the components, during a drain cycle the programme allows a time parameter for the appliance to empty away the water. How does the pcb know the water has gone? Simply by testing a pressure switch for continuity.

The pressure switch is an on or off switch, when the appliance is empty the internal contacts are "made" (on) when the appliance is full of water the switch is "broken" (off).

The sensing grid of the pressure switch is exposed to the dishwasher wash water and can over a period of time get clogged with crud ( a mixture of food waste and detergent and limescale), eventually this crud stops the switch from being in the correct attitude during the self tests. The electronics notes the on or off and determines that the appiiance has not drained and gives error code F4.

If you have F4 error code it could be the pressure switch needs cleaning or replacing.

On the self test about 4 mins is allowed for the appliance to empty the water away.

Aug 03, 2011 | Whirlpool Dishwashers

2 Answers

I have an error code f4 on my whirlpool adp 8966 dishwasher can you tell me what it means please

F4 indicates draining failure.Your washer drain pump starts and after 4 minutes the OWI(optical water indicator) detects that mashine is 'not empty'

Posible mailfunction reasons:
The drain pump must be defective/blocked
The siphon would have got closed
The control board would have got damaged
OWI defective

Apr 04, 2010 | Whirlpool 24 in. ADP6940 Dishwasher

3 Answers

F4 error fisher & paykel nautilus dishwasher sometimes this error comes up and it seems to occur about 10 minutes from the end of the cycle. it doesn't happen all the time. the user guide does not...

F4 is a heating error- dishwasher has not reached temperature in allocated time. If intermittent fault, problem is usually with electronic board, which has temperature sensor attached. Sometimes the wiring to the control board burns out and can give intermittent false readings causing F4 error. Disconnect from power, remove front panel (4 screws down each side). You can now see wiring going to control board- check for burnt wires. Also check temperature sensor (small square with two purple wires) is stuck to inner door panel- if this is not stuck to inner panel, temperature sensor will not work properly. If in any doubt, call in the experts!!

Mar 08, 2010 | Fisher Dishwashers

1 Answer

Error code F4

The F4 error code on your washer indicates a problem in the electrical circuits of the washer... and not end-user repairable.
This problem requires a technician to test the wiring circuits to diagnose the problem.

Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question

Jul 04, 2009 | Whirlpool 24 in. ADP5966 Free-standing...

1 Answer

Error code f4 on my adp 5966 whirlpool dishwasher

Blocked waste outlet or maybe just a worn pump.
I fixed a new one today showing F4
I found a piece of broken glass stopping the waste pump.
Hope this helps

Aug 05, 2008 | Whirlpool Dishwashers

2 Answers

F4 Fault indication

F4 is a water inlet fault. It doesn't make sense if you have this fault indication with water flowing into the unit. Does the dishwasher drain properly? Usual suspects for an F4 indication would be a clogged inlet line, water supply turned off, bad fill valve, or a control board failure. Let me know if this helps, or give me a little more information on what you have done to correct so far.

Jul 09, 2007 | Asko 24 in. D3350 Dishwasher

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