Originally Posted by FlippedPip
I've built in cool box with a cold plate connected to a compressor. I hadn't turned it on until yesterday and whilst the compressor works fine, and the pipe leading into the cool box is cold, the plate isn't getting cold.
Then after I but I found a leak where to pipe joins the cold plate.
Is there a product I can use to fill the hole or something that can be done to 'weld' or an other fix?
From your description it sounds to me like you could have two separate issues, so lets review for a moment. The hole in your plate that the copper tube passes through is not part of the "refrigerant loop". It's just the point at which the refrigerant loop copper tube, passes into the eutectic holding tank
. So any leak at this joint will just be the eutectic solution in the tank and not refrigerant gas. To fix that pipe/tank joint, you have two approaches. The hard way is to drain the plate and soft solder the hole. The easy way that I would recommend doing in the field is to use some JB Weld. Clean and gently sand the area and then apply some JB Weld epoxy
. Once cured 24hrs later, that fix will be forever.
Now to your symptoms of charge and cold lines.
First the line coming from the compressor should not be COLD until after the expansion valve, so if it is, then you have a problem.
There are a couple of common problems that could give you the symptom of a cool, but not cold/frozen holding plate and they are:
1. low on refrigerant, do you have a sight glass installed and do you see bubbles?
2. Expansion valve adjustment. Did you adjust this or what the story there?
And finally to help trouble shoot, is this a name brand system or did you build it yourself. Some additional tech details will help along with photos.
I give technical service
and support for holding plate systems 7 days a week pretty much during my waking hours, so feel free to use this thread for communication, or send me an email
directly at Info@TechnauticsInc.com
Oh and I agree 100% with Richard Kollmann...
I spend a HUGE amount of my trouble shooting time fixing what "refrigeration techs" screwed up in the first place! You are far batter saving your money
about the system and if you can fix it yourself FIRST.