[Solved] Samsung WF0500NUV Washing Machine Error Display: Inverted F, Roofless E - Troubleshooting Guide

Hello Dear Forumers,

After switching on the WF0500NUV washing machine, a melody can be heard (as always), and after 20s it displays an error: the letter F turned upside down and turned to the right or E without a roof and the letter E.
All green LEDs to the right of the display are lit, and green from 60'C, green for 1000 rpm, and red. No response from the programmer knob and the other keys on the panel except the power key.
I enclose a photo with an error.
I am asking for a tip to remove the fault.

Chris Marss wrote:

I am asking for a tip to remove the fault.

If the water drain from the washing machine is not clogged then you have a damaged temperature sensor on the heater or broken wires between this sensor and the PCB. I bet on the broken orange wire next to the sensor, on such a bundle of wires.

Problem with thermistor. Fuller error code table in the link.
http://www.serwis-elektroniki.com.pl/wp-content/uploads/2017/07/77_8_2.pdf

Thermistor Error

Hello dear,
At the beginning thank you very much for the valuable hint from Col. mrhari "I bet on the broken orange wire next to the sensor" , this hint is a shot in 10. The orange wire was actually broken, but also the purple one. The whole thing stayed on the insulation of these wires. I connected the wires and insulated with heat-shrinkable sleeves. The tE error has disappeared but an error has appeared in its place H2 . H2 means "open heater circuit", but the measurement with an ohmmeter shows that the heater has a resistance of about 60 ?. The temperature sensor for a change has a resistance at room temperature of about 14k?. After gentle heating, its resistance decreased. In this way I decided that the thermistor (DC32-00010C) is functional. I haven't applied the power supply to the heater yet, bypassing the whole system to check it, but I don't think it is the cause of the problem. I checked the wiring in the harness and found no fault or increased circuit resistance there. The connectors connected to the heater were cleaned, bent and slipped tightly back onto the heater. In other places, including PCB, there are approx.
Once again, please give me a hint or hint to remove the failure.

60? resistance is a heater to replace.

In fact, an efficient heater should be around 24 ?, which results from Ohm's law.
Thank you for the hint falo22.
In practice, the replacement heater has 28.5 ?, but the H2 error still has not disappeared and the remaining buttons remain unresponsive.
It should be mentioned that in the washing machine I did not find the heater with the symbol DC47-00034A (230V 2000W) only the heater with the symbol 14282 (230V 1800W).
Once again I thoroughly checked the installation regarding the sensor and the heater, I checked and corrected the contacts, but it seems to be far from full sanation.
Is there any possibility of resetting the above error when the thermistor and the heater are in good working order?
I am asking for some tips.

And, by accident, the parental lock is not attached now? You have the symbol there in red and therefore no buttons respond. If you're interested, I have a programmer for this washing machine (functional). Like something at PW.

And how did you remove this lock? And as for the heater, use the power as expected by the manufacturer (not less and not more). You wrote above about 200W difference, but unclear (did you use less power)? I think so because the H2 error from the link that Kol gave above. nomudrek it follows that the temperature is not rising properly and therefore an error.

Hello Dear Colleagues,
I would like to inform you with great satisfaction and satisfaction that thanks to your help I started the washing machine for which I thank you very much.

There were two reasons for the failure:
1. Broken both wires at the temperature sensor, which hung on the insulation, for which again thank you col. mrhari
2. Parental lock activated, as noted Col. Wiesiekmisiek, for which I also thank.

Parental lock is deactivated by buttons 2 and 3 (between them in the lower part there are ellipses and above the dots of the child's face pressed simultaneously for several seconds. The instruction manual states the time of holding the buttons together, I don't remember anymore.

Conclusions:
The original heater DC47-00034A (230V 2000W) in this washing machine was replaced by the service when it was under warranty a few years earlier and that's why they put in a non-original heater 14282 (230V 1800W). With this heater, the washing machine works well and there are no problems with underloading due to the low water temperature. The original heater can cost up to PLN 200, it is definitely cheaper.
At this stage, I end the discussion believing that someone will benefit from our work.

Thank you and best regards for all your help .
Chris Marss