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Replacement parts for General Electric GSD2200G02CC Dishwasher | AppliancePartsPros.com[COLOR="Blue"]I also confirmed that the water hose feeding the valve was not clogged and that the elbow fitting connecting the hose to the valve was unobstructed.[/COLOR]
Did you do this by actually running water into a pail?
[COLOR="Blue"]What else can I try to replace?[/COLOR]
I wold not replace anything, I would get a meter and check the overflow switch, should be 0 ohms.
If OK then plug the unit in and check from one side of the overflow switch to the far side of the water valve.
If you do see 120 volts then the problem is in the valve/water supply.
If there is no 120 unplug the unit and check the wires for continuity from the timer to the valve/overflow switch devices.
If all OK then probably your timer is toast.
[COLOR="Blue"]Could this be an electrical problem?[/COLOR]
Yes, could be a broken wire or a loose connection.
[COLOR="Blue"]
could there be a broken switch or relay somewhere that's not sending signals to it?[/COLOR]
The voltage for the valve comes directly from the timer but does run through the float/overflow switch.
If you do not own a meter, I would suggest you purchase a one. You can get a decent digital multimeter for under $20.00. You do not need fancy though it is nice if the leads are a couple feet long.
If it saves ordering one unnecessary part it has paid for itself and you end up owning a useful tool.
Most places will not let you return electrical parts so if you order it, you own it.
A couple things to watch when measuring ohms and continuity
1. Always remove power from the machine otherwise you could blow your meter.
2. Always disconnect at least one side of any device you are checking. This eliminates the possibility of measuring an alternate/parallel circuit path.
3. When checking for closed contacts and continuity use the lowest scale (Usually 200 ohms). Then try higher scales. This scale is 0 to 200 ohms so if the device you are measuring is 300 ohms this scale would show an open circuit which it is not, you are just measuring outside the scale's dynamic range.
There is a good STICKY at the start of this forum about it's use.