Copeland 6R compressor unloaders

[rdhussmann]

The solenoid coil is energized. The solenoid is working correctly. In fact the solenoid and the coil have even replaced, but the compressor will not unload.

Has anyone heard of the internal unloading valve plunger getting stuck? If so, is it going to be necessary to replace the entire valve plate? This is a reed compressor not a discus.

[blue_r1]

if you don't loctite the plunger on to the unloader assembly eventually it will fall off the unloader rod and lodge in the port causing the compressor to run loaded all the time

[rdhussmann]

Will that cause any damage to the valve plate. This is an old compressor. I haven't pulled the head off of it yet. I was waiting to to get some information before I go up an pull the head.

This is a 6 cylinder reed type compressor. If I pull that head, will this problem be obvious and simple to repair, or will it be an all day event. I'm hoping to avoid major expense. Especially replacing parts that are not bad.

[service guy]

should be easy the hardest part is cleaning the old gasket off the head.

[rdhussmann]

I heard that. I was hoping to avoid that situation. I called the application engineer from Copeland and he said that there is a seal that could be bad and they ususally recommend replacing the head.

[blue_r1]

i didn't read your post right i thought you wrote carlyle compressors what carrier uses they have the plunger issue where loctite must be used. the other one you might as well open it up and see whats hung up or blocking a port, make sure you have the proper gasket kit before you start taking it apart. either way the compressor will be runable once you find out what the problem is

[rdhussmann]

I'm sorry, I should have said stated Copeland. I have been working with Copeland equipment for so long I guess I just assume everybody else does too.