HFS-3 troubleshooting

[Richard L]

undo the outlet of the FAV:

Do a manual test by linking "SYS" jumper. If they are plenty of fluid shooting out of the FAV, the FAV is fine.

At the same time, see if there is any bar display on the gauge. If not, it most probably be the hall effect device in the yellow sensor cable. You can send the cabel back to me for testing.

Lastly. undo the sensor tube from the FAV, blow through it and tell me if you can hear a whirling sound. If you can, the turbine inside the sensor is OK. Just need to replace the sensor cable.

The hall effect device does not like heat at all.