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cirrusdriver
04-22-2010, 02:37 AM
Good Evening,

Gentlemen, I am not proficient with ice machines so I am asking the collective advice of the members of this forum.

Last night an antique (unknown model #) Crystal Tips Ice machine with a new compressor was not making ice. I hooked up my gauges and the low side was shooting up when powered up. When power's disconnected it drops down again. What is causing this? A blocked valve?

As far as windings, everything's ok. R-22 1 PH

Thanks.
Mishap64
04-22-2010, 02:52 AM
Not sure about Crystal Tips but most ice machines when they first start go into harvest. What kind of pressures are you seeing? How long are you letting it run for?
cirrusdriver
04-22-2010, 11:31 AM
120 on the low side right before I shut it down. 200 on the high side.
Mishap64
04-22-2010, 03:48 PM
How long was it running for? Was it still in harvest ( defrost )? If it wasn't check the hot gas solenoid and see if its leaking
iceman777
04-22-2010, 04:45 PM
sounds like hot gas valve is bypassing hot gas into lowside.
iceman777
04-22-2010, 04:48 PM
Grew up around crystal tips; never saw one that started up in harvest. Hoshizaki's have always started in harvest, and some manitowocs, but not crystal tips.
DoctorIce
04-22-2010, 07:29 PM
The Crystal tips machine goes into harvest when the ice sensor reads cold.
I suspect that your sensor is either wired wrong or has failed. If memory serves
the circuit closes when cold to start harvest. You can use the Ranco bin control as a replacement any bin stat with three terminals.
cirrusdriver
04-23-2010, 01:31 AM
How long was it running for? Was it still in harvest ( defrost )? If it wasn't check the hot gas solenoid and see if its leaking

From the moment i turned on the switch to 120+ mere seconds.
cirrusdriver
04-23-2010, 01:32 AM
sounds like hot gas valve is bypassing hot gas into lowside.

Thanks I will check that.
cirrusdriver
04-23-2010, 01:33 AM
The Crystal tips machine goes into harvest when the ice sensor reads cold.
I suspect that your sensor is either wired wrong or has failed. If memory serves
the circuit closes when cold to start harvest. You can use the Ranco bin control as a replacement any bin stat with three terminals.

I'll check that too. Thanks.
Mishap64
04-23-2010, 06:39 AM
Grew up around crystal tips; never saw one that started up in harvest. Hoshizaki's have always started in harvest, and some manitowocs, but not crystal tips.

Thanks Iceman. I haven't worked on Crystal tips, wasn't sure if it went into harvest first.
VTP99
04-23-2010, 08:07 AM
Disconnect hot gas solenoid power see what happens.
Stamas
04-23-2010, 08:10 AM
I had a new Crystal Tips that a customer bought form the distributer where he worked. Stuck in harvest. Found a small chunk of wood in the HG valve.
VTP99
04-23-2010, 08:41 AM
I had a new Crystal Tips that a customer bought form the distributer where he worked. Stuck in harvest. Found a small chunk of wood in the HG valve.

Did you say wood and how the heck does wood get into a refrigeration system ?
surenuff
04-23-2010, 07:18 PM
wood gets into a refrigeration system at 4:45 pm on a friday when the guy on the line has a hot date that night.