miele g975 sc plus reed valve

This topic has 6 replies, 3 voices, and was last updated 14 years, 8 months ago by JENKS.

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July 20, 2011 at 5:52 pm #64054

JENKS
Participant

hi everyone does anyone know a way to test the reed switch on the water inlet pcb other than replacing it,or is there a way of by passing it to test if it is at fault.the inlet/drain light flashes as soon as the machine takes in water but it carries on filling and then nothing.any help much appreciated.

July 21, 2011 at 10:00 am #355890

electrofix
Moderator

Re: miele g975 sc plus reed valve

you cant bypass it because it needs to pulse to send a signal to the pcb
you can test reed switches with a multimeter and a magnet

only way you could bypass it is to solder 2 wires to a push switch and when machine start you push the switch on and off fast as you can, but reed has got to have failed o/c for this to work without removing it

Dave

July 21, 2011 at 11:17 am #355891

JENKS
Participant

Re: miele g975 sc plus reed valve

thanks for reply,do you know if these reed switches are normally open or normally closed when machine off

July 21, 2011 at 12:16 pm #355892

electrofix
Moderator

Re: miele g975 sc plus reed valve

depends where the magnet stops

reed switches are activated by magnets so if the magnet stops next to it then switch will be closed

Dave

July 21, 2011 at 1:33 pm #355893

JENKS
Participant

Re: miele g975 sc plus reed valve

doesnt seem to be a magnet anywhere near.the switch is on a small pcb which slots into compartment on the water matrix.

July 21, 2011 at 7:14 pm #355894

eastlmark
Moderator

Re: miele g975 sc plus reed valve

the magnet will be on the wheel inside the air break.

July 22, 2011 at 4:37 pm #355895

JENKS
Participant

Re: miele g975 sc plus reed valve

is it possible to access the magnet,i ve been told these can come loose.
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