Hi - my ice maker is intermittently not releasing the ice from the chill plate. How can I tell if its the reversing valve or the reversing valve solenoid. I have a DVM - should I monitor the voltage at the solenoid to make sure the control signal is stable ?? What voltage is normal in "freeze mode" and what voltage should I see for "reverse - release".
Thanks very much in advance !!!!!!!!! You guys are great - recommend you to everyone I know with a self repair competency that has appliance problems.
Answer Hello Ramair,
This could be simple as a good cleaning. I know you will probably argue, but depending on the last time you cleaned it, the evaporator plate will have mineral deposits stick to it which causes the ice to stick to it. This is of course unacceptable as it will stop ice production. An ice machine that is used constantly needs to be cleaned about every two months at the very least unless a water filtration system is in place. To test the reversing valve with an ohm meter, remove the wiring harness from the coil and testing the terminals on the coil you should read between 365O and 390O. The coil is 120Vac. I was going to send you some illustrated material to aide you in your repair, but your e-mail address delivery failed permantly, so if you would like this information, re-post with a valid e-mail address.
Cooling plate stays warm. "Radiator" below is cool. Is problem the reversing valve solenoid? How do I test? What is a Good/bad reading? Is there a process of testing problems in a series to best find solution? Ice maker was working and it suddenly stopped cooling.
Answer Hello Bob,
While it is much easier to help diagnose a symptom with a model number so we know your units' exact configuration, I'll try to hit on some high points. First off, does the compressor run? If not, you should check the compressors' start relay and overload. If they test good, you should check for 120Vac to the overload. If the compressor is running, is it hot or cool? If it's hot, you may have a sealed system restriction. If it's cool, you could have a freon loss. If the compressor runs and is just a bit warmer than body temperature, the reversing valve could be defective. The reversing valve or "hot gas valve" as the manufacturer calls it, could have a mechanical failure that is not indicated with a test with a test meter. This means, it could be stuck mechanically so it cannot open and/or close. If you could post a model number, we can send you some illustrated literature on your model for troubleshooting to your e-mail address as we cannot post the literature on this format.