Wasco overfilling

[BWP]

Tonight a W74 double loader started overfilling. It went through the prewash fine, but once it started filling for the wash, the water would not shut off. I know most of the time it is either the valve or pressure switch,but I am thinking maybe the timer?? The machine did not switch tumble directions while this was happening ( kept tumbling counter clockwise) and the timer did not advance. After hitting the timer area, the water shut off and it continued the cycle, now starting the two way tumbling. It finished the cycle, with all the rinses with no problems. Do you think the timer is bad, or possibly a loose connection somewhere? Thanks

[David]

That would be my guess.

I had a W184 (same timer) that would stop at the end of the soak cycle, just before draining. But it would only happen every 3-4 washes. Finally, thinking the timer was defective, I replaced it. After getting the timer out, I could see a green circle of green corrosion about the size of a quarter on the contacts.

But, you have pretty good evidence that's the problem, when you tap on the timer and it starts working properly.

[MSKLAUNDRY.]

Did you try running it again. Perhaps the level switch "kicked in" as you hit the timer area. Try swapping the level switch with another washer of the same size. Its certainly a lot easier than changing a timer out for nothing!!!

[Ken]

If the hot water valve work and only happen in hot setting,yes,you have bad timer.Otherwise I will check other parts first.

[CharlieS]

Much more likely to be a level switch than the timer. As MSK said, its a lot easier anyway to swap it out and see if the problem returns.

Charlie

[BWP]

The only reason I question the timer, is because the motor never stopped the entire time. It kept tumbling in one direction. If it was the level switch, wouldn't it continue to tumble both ways until there was enough water in there?

[MSKLAUNDRY.]

The reversing action does not start until the level is reached.

[CharlieS]

The timer simply stops until the water level is reached. Since the reversing is handled through the timer, it goes in one direction until then.

This is a classic scenario indicating a problem in the level control section. It could be a plugged hose, a plugged tube going into the drain, a bad level control. Check the hose and tube first, then swap the level control with another. I've also had the hose get caught on something and get kinked closed.

Charlie

[TTLES]

Quick test (mechanical) ...blow into the level control... you should hear 2 clicks on and 2 clicks off. Check the tube for air leak... Check the air chamber in the drain valve. Normal operation for the timer is to cause rotation in one direction and no advance until the proper water level is reached. Aditional testing would be done with a V.O.M.

[MSKLAUNDRY.]

Normal operation for the timer is to cause rotation in one direction and no advance until the proper water level is reached.

IS THERE AN ECHO IN HEAR, LOL.

[BWP]

The reversing action does not start until the level is reached.

I didn't realize the reversing didn't start until the level is achieved. I will check the level switch and hose.
One more question, why does it reverse then when rinsing before the water is full?

[TTLES]

It shouldn't.... unless you have advanced the timer past the step where rotation is controlled by the level control. Gen four has a dual level control but only uses one level for all fills. Timer terminal 4a & 4b should be jumpered (high, low level)

[Winston]

It wasn't clear to me from the original post whether the washer overfilled (i.e. water level rose up to or beyond the level of mid-glass), or did the water just keep on running, but the water level did not rise. All the replies assumed the former. If it was the latter, check the drain valve for a foreign object (bra underwire) which could be occasionally keeping the drain valve held open.

[BWP]

No it overfilled, as in water was overflowing out of the rear vent all over the floor.