F3 on the display screen of Bompani Dishwasher 5021

I believe mine needs a thermostat.

It is an error code and it should be listed in manual. If not go to mfg web site for guidance re code and then you can act accordingly. If it is for a bad part go to attached site for price, etc. Sometimes you can get the part number here and then enter it into ebay and get a better price for the same thing! Search Over 2 1 Million Appliance Parts

f5 error

some dishwashers require the door release to be held for a period of time. This is a child safety feature

I have given up trying to find Bompani Washing Machine manuals on the net. Ian

F3 error fault code
The heating cycle is not working. The error is indicated after several electronic checks are done over a 25 minute period. Therefore if the heater heats too slowly or the heater is open circuit or indeed the electronic control PCB is defective, each of these will indicate F3. The twist is, if the NTC is fluctuating in its reading it also can indicate F3 and not F1.

f3 water temp sensed at greater than 85 c or 185f check temp sensor or is element on all the time

NOTE: IF YOU TRIED UNSUCCESSFULLY TO ENTER YOUR CODE YOU MAY BE PROHIBITED FROM ANOTHER ATTEMPT FOR UP TO 24 HOURS. See below--section C

A. Input Security Code:

1. Enter Standby: Press the [SRC] button. Select the "ALL OFF" display.
2. Enter Menu Mode: Press the [MENU] button for at least 1 second. When "MENU" is displayed, "Security"/"SECURITY" is displayed.
3. Enter Security Code mode: Press the [|<<] or [>>|] button for at least 1 second. When "ENTER" is displayed, "CODE" is displayed.
4. Select the digits to enter: Press Press the [|<<] or [>>|] button.
5. Select the Security Code numbers: Press the [FM] or [AM] button.
6. Repeat steps 4 and 5, and complete the Security Code.
7. Confirm the Security Code: Press [>>|] button for at least 3 seconds. When "RE-ENTER" is displayed, "CODE" is displayed.
8. Do the step 4 through 7 step operation, and reenter the security code. "Approved is displayed and the Security Function activates. However, if you enter a code different from your security code you have to start over from Step 4.

B. After Pressing the Reset button or when removed from power source.

1. Turn the power ON.
2. Do the step 4 through 7 operation, and reenter the security code. "APPROVED" is displayed.

C. If an incorrect code is input, "WAITING" is displayed and the input prohibited time shown below is generated. After the input prohibited times lapses, "CODE" is displayed, and input can be done.

1 Time = 0 minutes
2 Times = 5 minutes
3 Times = 1 hour
4 Times = 24 hours

Here's a link to the manual:
http://manuals.kenwood.novenaweb.info/languages/EN/support/manuals/KDC-MV6521~6021~5021%20(EN).pdf

Do you have a manual? If not, here's a link to the manual:

Dutch:
http://manuals.kenwood.novenaweb.info/languages/NL/support/manuals/KDC-M6521-M6021-6021-2051(V)(FR,GE,DU).pdf

English:
manuals.kenwood.novenaweb.info/languages/EN/support/manuals/KDC-MV6521~6021~5021%20(EN).pdf