Question about WYSE WT9650XE 512MB/512MB LCD INTERG (90206830) Network Terminal
F8 is shown when the heater circuit is on with no water in.. it doesnt do it when you unplug the pressure switch because your disabling the heat protect circuit
THE BOARD IS PROBABLY FAULTY
F08 indicates pressure switch stuck on full.
Unplug the appliance from the wall socket.
Take the top off the machine.
Locate the pressure switch, you can identify it by the thin tube attached to it.
Take the tube off, blow down this tube as hard as you can to shift any blockage or restriction in the pressure chamber. Give the pressure switch a couple of good taps with the screwdriver handle.
Refit the tube and try the machine again.
If still doing it, unplug again and follow the tube down.
This end will be attached to the pressure chamber.
Take this chamber off and thoroughly clean it out, clean out the port into the tub too.
Reassemble and try again.
If after this it's still faulty you'll need to start replacing parts.
I'd suggest trying a new pressure switch first.
Failing this, if all of the above fails to resolve the problem you're possibly looking at a faulty main control board.
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Posted on Sep 16, 2010
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