20 Most Recent Randell (84111NPCB) Questions & Answers

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http://www.randell.com/assets/docs/randell/Custom_OM_DPM.pdf
go to this web site and check out the manual. It has some general info that can get you started on narrowing down just what is happening.
If it has been filled with freon 2x, there is an issue. Either it has a leak and it has not been found yet, or the amount of freon in the system is incorrect.
Usually, adding a timer is for defrosting purposes. Is there a frosting up issue?
It could be a thermostat issue but it is not set by the PSI, but by actual temperature. If it is a control that you have to set the PSI, an experienced refrigeration tech should know what to set it at.
Let me know if I can be of any further help.

I may be able to get a cover. See my ad in repair directory. Northeast Cooling LLC

If you were told to replace the entire compressor unit (condensing unit), the person diagnosed the compressor is most likely bad. Depending on the age of the unit, it is hard to tell if this is a good decision. Overall condition plays a role in the decision process as well.

if it has a leak between the walls there is nothing you can do except put in some stop leak freon but that usually does not work very well

Your compressor may have a internal leak caused by a bad high side valve. If the box is not cooling well and the compressor is very hot you may need a new compressor. I’m happy to assist further over the phone at https://www.6ya.com/expert/w._c61c997d7bf3e6ae

yes it is