Error code F08 - Troubleshoot

I’m troubleshooting my Whirlpool FWG8168BV that’s throwing an F08 error code, and I’d really appreciate some input.

Initial behavior:

- On a 30°C cycle, the machine starts normally (fills with water, drum rotates both directions).

- After about 10 minutes, it stops, drains itself, and shows F08.

Current behavior:

- Now it throws the F08 error immediately when starting a wash.

What I’ve checked so far:

- Heating element: Resistance measures within expected range. Removed and inspected, no visible damage. Also powered it directly and it heats up quickly.

- NTC sensor: Resistance changes correctly with temperature, seems functional.

- Voltage at heating element: Measured during a 30°C cycle, reads 0V.

- Relays (on PCB): Tested off-board with 9V, confirmed they click and switch correctly.

Where I’m stuck:

- I’m not sure how to verify if the relays are actually receiving the control/drive voltage during operation.

- Could the issue be upstream (control board logic)?

- Is it possible the pressure switch is not signaling correct water level, preventing heating?

Has anyone seen a similar issue or can point me in the right direction for further diagnostics?

Thanks in advance!