chiller service/recharge

What Type coolant does it use? R12, R22, R134A? Is it completely depresurized? if so you need to find the leak and repair first, then have it vacuum pumped to remove the non compressable air, then recharged. if it is just run down through slow seal leakage over several years , you might be able to recharge yourself with a bottle of coolant and the valve kit from pep boys or walmart. .

I would think any of the local refrigerator repair shops could do it. there's a maytag shop near you. or there are some listed under AIR CONDITIONING EQUIP.-REPAIR in the yellow pages. bill vandervort appliance repair looks promising. or an auto AC repair shop. all have the vacuum and recharge equipment. but the appliance places might have repair parts. Check also under yellow page ads for APPLIANCES-MAJOR REPAIR. I haven't any personal experience with any for repairs. but it seems like there are lots of repair places. it's just a mini fridge unit.
 
Ken, i dont know why its not cooling. it was working at the end of last summer. the tanks crept up to 82 yesterday and it kicks on at 81 so i grabbed the coil and it wasn't cool at all. i dont know what coolant it is either but im sure it will say inside.

so do you think one of those conversion kits from pep boys would work on it? the insides look good, no major corrosion. and it just sits there so it must just be an O ring leak.
 
Probably the lube oil drained off the seal over winter and let it leak out slowly. you shouldn't mix types of coolant. it is important to know the type and how much charge it takes. or to what pressure. if it was made with the new R134A coolant. i think the recharge kits should do it. i think they use a different size fitting for each coolant. or at least the new stuff is different from the old R12 freon fittings. so they dont get confused.

there should be a spec plate inside somewhere. What im reading now in research is problems with mixing or changing the type lube oil. and if switching coolant type or oil, the O rings could disolve. so it would be best to recharge with the OEM type coolant. retro fits end up less efficient because the system doesn't match the properties of the coolant.

http://www.aa1car.com/library/retrofit.htm

Then again,the problem may be a temp or pressure sensor or switch or relay gone bad. not low coolant at all.

perhaps some of the auto mechanic guys here on the forum can shed some more light on repairing AC systems. that's about all i know. come to think of it, my 87 burb AC is empty now too. I wonder if it's worth fixing? or converting?

meanwhile, break out the clip on fans to keep the tanks cool. until you can sort it out.
 
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