The compressor keeps shutting down, new board and relay. Overload and pressure switches jump out, still not staying on.
RICHARD! You actually did all that?
I take it this is for an ice machine.
What tests did you perform in order to ascertain that the board was bad?
It seems to me that, if the compressor came on, then the board was good.
How did you conclude that the relay was bad?
It seems to me that, if the compressor came on, then the relay was good.
THEN you JUMPERED the overload and the pressure switch? I take it that you did NOT have a means to actually check and monitor the pressure, so the pressure may very well have gone sky-high if it weren't for OTHER safeties - one of which you said you ALSO bypassed.
A compressor explosion WILL take part of your head and other body parts off of you. I have a rather graphic and true story to share in that regard.
As it stands though, you're still with us and the compressor still shuts down. So...a problem still exists.
Luckily, it sounds like your compressor has an internal overload. A simple multimeter test would prove that. There MIGHT be an issue with the compressor like bad valves or bearings,an overcharged system (tell me you DIDN'T!), non-condensables in the system or maybe, with your tinkering with it, a closed hi-side service valve.
OR...there might be something simple, such as a bad/dirty sensor or a sticking float switch or NO water, which is simply communicating to the board that NOW is not the time for the compressor to be running.
Please don't bypass anything else (like fuses, circuit breakers & such). Put you jumper wires DOWN, pick UP your smart phone and call a refrigeration technician.
I had a nightmare of a compressor do the same thing to me once.
Are you able mega ohm the windings in the compressor? could be a damaged winding like it was in mine.
I did everything I could to fix my freezer compressor, it would just keep turning off no matter what I did, sometimes it would take a day, sometimes 5 hours but it would ALLWAYS shut off eventually and it would also blow the breaker every time so it was very frustrating.
I changed the compressor and that solved it. But the only lead I had was when it was megged out and one of the windings was slightly off so I contacted the manufacturer with my readings and that was the conclusion.
You could go that route.
Freezer keeps tripping circuit breaker Thats the link to my thread when solving my compressor
Sounds like the defrost timer is hanging up.
I would install a Paragon 9145 timer. They are digitally controlled so there is no timer motor to hang up or fail.
I left refrigeration over four years ago and had yet to see a Paragon digital defrost timer. I replaced many a failed Grasslin digital timer with Paragon 8145s (with the old motorized clock) and never had to go back. My guess is that Paragon's digital clocks that you're referring to are still far more dependable than those Grasslin?
Anyway, back to the OP's topic about his compressor. Since he posted his request for help in the FOLLETT category, I surmised that he was talking about an ice machine. I have never seen a defrost timer in an ice machine.
But even if it were so, a defrost timer would still fall into the control side of his problem...which I also tend to wonder about. There's very little possibility to help him to find out - since he seems most uniquely equipped with jumpers instead of test equipment. His problem could typically, simply and efficiently be traced down by a qualified technician using a multimeter. Instead, he's exercised some real taboo & dangerous practices in his DIY troubleshooting endeavors.
There's certainly some misguided DYI work going on here and I will highly discourage that in order to protect those who might potentially suffer from his dubious actions. Simply by the procedures that he proclaims to use, I strongly suggest that he should step back, get some sense about him and call somebody who has the skills & expertise to troubleshoot and properly resolve the problem.
ANYWAY...to the OP - good luck to you in solving your problem.
Yes, I'm sorry. The defrost clock comment was a joke.
We have some "parts changers" at work who seem to change the defrost timer on just about any service call they go on, so whenever I hear about jumping out this, and jumping out that, I can't help but joke about defrost timers.
Follet does make coolers as well as ice machines, so it could be anything for all we know.
I've worked on some Follet blood coolers in hospitals.
What make and model of machine and compressor?
Fixbear, I don't think Richard became a member here and he can't respond without doing so. I don't think he will, though.
Unfortunate. With the full information I'm certain I or someone on the site could help him.
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