Error code ef ef8 - Maytag MAH2400A Front Load Washer

Ah, a DISHWASHER!!

Now... 'EF' as you wrote, or 'FE'?? FE is Fill Error. Low water pressure, blocked tap, Blocked strainer screens, faulty water inlet valve.

LG / Candy

https://www.google.com/search?q=Candy+dishwasher+LDT7797BM+error+codes+EF

There is no EF code.

https://zestplan.com/help-and-advice/candy-washing-machine-error-codes-a-complete-guide/

https://www.google.com/search?q=Code+EF+Candy+washer

..

'EF' is not a Kenwood error code. We are not Kenwood, we just have a Kenwood category.

https://sialkotacrepairing.com/2020/01/20/kenwood-ac-error-codes/

Are you sure is is Kenwood? YouTube on EF.

EF Code Work-Around - CoolBot Support - YouTube

www.youtube.com > watch
2:02 If you are experiencing an "EF" code flashing on your screen, watch this video on ... TCL DC INVERTER AIR ... Jul. 22, 2016 · Uploaded by CoolBot
Missing: Kenwood ‎' Must include: Kenwood

and finally

https://www.google.com/search?q=EF+error+in+Kenwood+Inverter+AC

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Search for:

Make Model error code EF

Only Codes listed that are close on Tech Sheet are EF1, EF3 and EF8. Many Other codes but not in that format. There is an EF2 Code for Frigidaire washers for oversudsing.

https://www.manualslib.com/manual/794794/Brother-Dcp-7055.html?page=106

Brother DCP 7055 Service Manual Error Code Ee ef

Quoting from the free manual Page 2-69:

? Error code EF
Print Unable EF
Turn the power off and then back on again.
The supplied power is unstable.
Step
The irregular power supply is
detected
1
2
Main PCB failure
Note:
• The irregular power supply detection error (Machine Error EF) occurs when there is a
large fluctuation in the power supply voltage supplied to the machine.
In this case, if the same power supply is used, the same error might occur again even if
the low voltage power supply PCB ASSY is replaced.

Good Morning Friend,

I understand you are receiving an "SY EF" code on your Frigidaire refrigerator, model# FRS3R5EMB. The "SY EF" code stands for system error with the evaporator fan. This possibly means that there is something going on with your evaporator fan or it could possibly be a false error code. . I suggest resetting your appliance, by either unplugging it or shutting the power off at your home's circuit breaker, for 3-5 minutes. I ask that you please follow up with a comment on the post, at your convenience, to advise if further troubleshooting is needed or if your appliances status has changed successfully.

-Best Regards-
WP

Generally, EF error is showed with an additional number on your display... EF 1, EF 2, EF 3, EF 5, EF8, or EBF.
Each error code will depict a different cause and solution. Out of these solutions, the most common is the control board and possibly the UIB (User Interface Board), or too higher mains voltage coming into the house, causing damage in this UIB device.
Test and check voltage, if this isnt solve it, relace UIB device.
Hope this helps.