I have a Whirlpool DWF 405 from 2001. The LED is flashing constantly. From what I read in other posts, it seems like this means error code F01 that indicates faulty NTC sensor.
I therefore disconnected the NTC sensor and measured the resistance, but it seems to be OK. Resistance drops when temperature increases, so it does not seem to be faulty. I also checked the wires from the control unit to the NTC, and they seem fine.
Any idea what could be the problem?