I have an under the counter Kenmore icemaker that came with a house we purchased, the icemaker is about 4 years old. After we moved in I cleaned the icemaker, fixed the cutting grid and it worked OK for a while.

We had a bad thunderstorm a few months ago with a couple of power surges and the unit stopped working completely. I replaced the main water pump and the control board last week. When I first turned the unit back on the water reservoir filled up, the main recirculating pump kicked on for about a minute and then shut off. The water reservoir keeps filling overflows into the hopper and the drain pump kicks on.

I turned the unit off, than tried the cleaning cycle. The main recirculating pump did turn on, the water circulated and heated up. The unit ran over an hour, past the 45 minute cleaning cycle, so I turned it off.

I drained the water, turned it on, the reservoir fills up but the main pump will not run for a normal ice making cycle.

I called the Sears repair guy, he showed up and I knew more about how the icemaker worked than he did. I sent him on his way.

What I know works:

1. Inlet valve
2. Drain pump
3. Main pump in cleaning cycle
4. Heating Cycle

What would prevent the unit from going into the ice making cycle???

One person suggested that it might be the reversing valve on the refrigeration system?

If I replaced the valve would I need to re-service the unit with refrigerant? Any other suggestions?

I think I have the same problem. Did you determine if the reversing valve was an issue and whether or not you had to break into the refrigerant line to replace it? Thanks

My kitchenaid undercounter is in its 4th year. I've recently replaced 2 pumps: drain first, ciruculating second. Both work fine. The clean cycle worked but didn't stop. Not sure if that's relevant but I did have to stop it manually.

When I tried to start the icemaking cycle the reservoir would fill and the system would seem to attempt to start but light would flicker and system would restart the reservoir fill process.

I read the thread here about the clogged screen, removed the drain pump, its tank, the vinyl (white on mine) hose and the screen. The screen didn't appear to be clogged but somewhere in the process of removing the tank, draining it and cleaning the screen, it allowed the icemaker to go into the cooling/circulation mode. I had noticed that the noise I normally hear when the drain pump is emptying was not as evident. Maybe it wasn't draining fully but it stopped the ice-cycle.

Thanks for the help. Saved me.