Icemaker for GE ZIS360NMA Refridgerator

[shmonkey]

After my icemaker harvester shaft jammed last week on a plastic bag which wrapped around the shaft about 3 times, my icemaker has stopped making ice.

I'm not sure of my icemaker's model number, but it came with my fridge (model number in subject) which was manufactured in 2002.  The GE icemaker service guide (#31-9063) describes it perfectly though.

I ran the service diagnostic by powering off/on the icemaker and then depressing the feeler arm 3 times.

Immediately, the harvester ran through a full rotation, but afterwards no water flowed into the ice mold.

Looking in the service guide, there are 5 things which could prevent water fill from happening:

1. Water supply shut-off.  I didn't shut off any valves upstream of the icemaker, but maybe this could be caused by a frozen water plug of some sort????

2. Water valve failure.

3.  Loose lead.  I checked and didn't see any loose wires on the icemaker control board (and I can't think of any reason this could have happened spontaneously).

4.  Bad thermistor.  I checked this too by disconnecting one thermistor lead from the control board and then measuring the resistance.  I used the indicated freezer temperature from the green LED's in the FF compartment.  The reading checked out pretty well when compared to the thermistor resistance chart in the service guide (see attached plot of my reading vs thermistor documentation).  My chart doesn't say so, but the ohm reading was actually in K-ohms read with the 200K ohms scale on my multimeter.  So I'm ruling this one out.

5.  Control Board failure. 

I think I've ruled out items 3 and 4, but I have no clue how to rule out items 2 and 5.  I could check for the frozen water plug but is there any trick to do this without emptying my fridge and letting it thaw out?

 

Please help.

Icemaker Thermistor Check.doc

[shmonkey]

update:

If you're keeping up with my fridge/icemaker woes you know I'm also having a problem with my fresh-food section freezing my food.

I just removed the water filter so I could get at the main air damper which lets freezer air into the fresh-food side.  When I removed teh water filter, I found a nice big chunk of ice inside it.  Hopefully after I fix the fresh-food freezing problem, I might be able to get water flow into my ice-maker.  More to follow once I make some more headway on the other problem.

[shmonkey]

I'm on a roll today.  I think I fixed my fresh-food freezing problem and in so doing the time it took to repair was enough for the ice to melt in the water filter.  Got everything all buttoned up and ran the service diagnostic on the icemaker again and wouldn't you know I've got water again.  Ice is a-making as we speak.

Couldn't have done it without the service guides you sent me, Samurai-san.

Thanks.

This service is well worth the money.  I will recommend you to my friends and family.

...now if only I could get my Xdrive access to work.....:beating:

[Samurai Appliance Repair Man]

...now if only I could get my Xdrive access to work....

Yes, this is good time to work on that.  Since your PC is all gunked up with McAfee (and it sounds like it is), get a free email account at Yahoo or Gmail and I'll send you an access link to that account. 

[shmonkey]

Done.  You should now have an email from my new account sitting in your inbox.