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Post by raccoon on Feb 21, 2014 4:18:39 GMT
Hello guys,
I have my CG unit currently at a local antique appliances shop here just outside of Los Angeles and I am told that the thermostat is broken. The machine runs but won't shut off. The repair man says that it is not repairable and that he can bypass the original thermostat and install a more modern one that will have a control installed in the interior. I would like to keep the unit as original as possible so I was wondering if these thermostats were repairable or if anyone knew anyone that has one for sale?
Thanks for any information on this.
Andre
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Post by coldspaces on Feb 21, 2014 6:11:14 GMT
Just checked the manual and see that the CG has a M1A80 control originally. This is a combination cold control, overload and start relay type control. If he mounts a modern cold control he will still need to add a overload and start relay. Unless he can tie into the wiring inside the control and keep the old relay and overload.
Sounds like the old control has burnt together points,linkage that stuck from wear or possibly lost the charge in the sensing capillary tube. To bad you don't live next door.
Don't know your ability's but old control might be reparable.Not cost effective to repair if there was a direct replacement for it but doubt if you will find better than a used one if that. Looks like is a pretty compact unit for everything that is in it. Would not have room to put a new relay, overload and cold control in the old housing I think.
Coldspaces
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Post by cablehack on Feb 21, 2014 6:11:56 GMT
Anything like this is repairable - it just depends how much effort you want to put into it. First thing to find out is why the thermostat is not shutting off. The bellows should be OK as it's the pressure from them that keeps it switched on, so it may be a mechanical problem related to the actuation of the switch contacts. There is a section that deals with this control in the service manual (see page 55) if you are interested in finding out more about it.
The CG thermostat was only used in the CG and later LK's and it is a combination start relay and thermostat. None of the other prewar GE's used it, which reduces the chances of finding an original.
One important thing is that if installing new controls or start relays to make sure the overload protection is not bypassed.
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Post by coldspaces on Feb 21, 2014 6:27:29 GMT
If there is room somebody may be able to do something like I did on the 50 Westinghouse. monitortop.freeforums.net/thread/165/new-controls-1950-whestinghouseThe Westinghouse did not need a overload as it is on the compressor but that could be fit into a homemade box with the rest. Page 71 in the manual shows the pick up and drop out amps of the original controls relay. Can match up a new start relay with those specs if need be. I used the Marrs 27002 relay in my 38 flat top and it has worked great. The relay in your original control has almost the same specs, 27002 should work in its place. Coldspaces |
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Post by raccoon on Mar 27, 2014 17:45:14 GMT
So, I have been milling over what you guys have said and looked into possibly getting back my unit and give this a whirl myself. But as it stands, I doubt I will ever be able to get my hands on fixing this unit because of lack of time (full time job + starting a new small business + branding another business). I don't know the first thing about refrigeration units or how they work. I'd basically be starting from scratch. Basically, what I am asking is if anyone knows of a hobbyist or repair shop in Southern California that could take a look at this unit and possibly fix it or work with me to fix it. I'm not looking for free services by any means, just a shop or someone that would be able to get this beautiful unit working so I can finally put it to use.
Thanks in advance.
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Post by coldspaces on Mar 27, 2014 21:42:37 GMT
Do you know what is supposed to be bad in the control? Sounds like the points may be welded together unless the sensing tube and bellows cause them to stay closed when they lose their charge.
Have you seen my thread were I soldered in new contacts in a control? If you could get it off the machine without damaging it further I would see if I can save it if you shipped it to me. Even the bellows can maybe be repaired and recharged some times. I haven't had to work in this particular control before so I can't be sure how easy it will be to re-contact compared to my bigger 1932 control.
There is one on the CG in my garage I am sure, may just have to have a look at it latter tonight if possible.
I have also made a new housing before and put a modern temp control, relay and overload in it.
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Post by allan on Mar 28, 2014 13:21:28 GMT
If all the parts are there I will rework the control for you with new components. Just pay me for the parts and shipping back to you.
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powerglide
5 Cubic Foot
slowly, but surely ...atleast so far...
Posts: 83 
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Post by powerglide on Mar 30, 2014 5:43:31 GMT
If all the parts are there I will rework the control for you with new components. Just pay me for the parts and shipping back to you. Allan, Do you do any work on CA Controls? Somebody has gone through mine, and I'm trying to figure it out, I can't hardly find any pics of it to work by. Let me know. Paul
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Post by allan on Mar 30, 2014 17:21:32 GMT
If all the parts are there I will rework the control for you with new components. Just pay me for the parts and shipping back to you. Allan, Do you do any work on CA Controls? Somebody has gone through mine, and I'm trying to figure it out, I can't hardly find any pics of it to work by. Let me know. Paul
Paul. I typically replace the CA control with a Ranco A30 style thermostat and Supco RO 81 start relay- overload combination. When I restore one for myself I just want the most reliable operation and maximum safety for the compressor. I have replaced the contacts in an original control before and it's not too bad of a job. There are several possibilities here and it mostly gets down to personal preference. Do you want me to send you a pic of a fully assembled CA control? |
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Post by ChrisJ on Mar 30, 2014 17:55:43 GMT
Allan, Do you do any work on CA Controls? Somebody has gone through mine, and I'm trying to figure it out, I can't hardly find any pics of it to work by. Let me know. Paul
Paul. I typically replace the CA control with a Ranco A30 style thermostat and Supco RO 81 start relay- overload combination. When I restore one for myself I just want the most reliable operation and maximum safety for the compressor. I have replaced the contacts in an original control before and it's not too bad of a job. There are several possibilities here and it mostly gets down to personal preference. Do you want me to send you a pic of a fully assembled CA control? Allan, Would you be willing to do an original rebuild using parts you removed from your own, or a modern rebuild? I bet some guys would prefer original while others would want the modern. |
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powerglide
5 Cubic Foot
slowly, but surely ...atleast so far...
Posts: 83
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Post by powerglide on Mar 30, 2014 21:26:08 GMT
Alan, I don't care either way actually, as long as it looks original from the outside of the unit. Does that fit into the original box or do you make your own and fabricate it into it.? I can send you a pic of it, I think somebody else at one time has been in it and screwed with it. I am liking your thinking, a more modern control with overload might be the best way to go.
Paul
Powerglide1964@aol.com
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Post by allan on Mar 30, 2014 22:24:46 GMT
Alan, I don't care either way actually, as long as it looks original from the outside of the unit. Does that fit into the original box or do you make your own and fabricate it into it.? I can send you a pic of it, I think somebody else at one time has been in it and screwed with it. I am liking your thinking, a more modern control with overload might be the best way to go. Paul Powerglide1964@aol.com Let me pullout my spare control and study for a bit. I will get back to you |
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powerglide
5 Cubic Foot
slowly, but surely ...atleast so far...
Posts: 83
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Post by powerglide on Mar 31, 2014 1:44:07 GMT
Sounds good to me Allan, I can try to send you a pic on here of the control.
Paul
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Post by allan on Mar 31, 2014 22:37:23 GMT
Alan, I don't care either way actually, as long as it looks original from the outside of the unit. Does that fit into the original box or do you make your own and fabricate it into it.? I can send you a pic of it, I think somebody else at one time has been in it and screwed with it. I am liking your thinking, a more modern control with overload might be the best way to go. Paul Powerglide1964@aol.com I am understanding you are speaking of a CA control. Is it a form A or B? A pic would be nice and start a thread under CA machines for easy reference in the future. Thanks Allan |
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Post by allan on Mar 31, 2014 22:42:23 GMT
Hello guys, I have my CG unit currently at a local antique appliances shop here just outside of Los Angeles and I am told that the thermostat is broken. The machine runs but won't shut off. The repair man says that it is not repairable and that he can bypass the original thermostat and install a more modern one that will have a control installed in the interior. I would like to keep the unit as original as possible so I was wondering if these thermostats were repairable or if anyone knew anyone that has one for sale? Thanks for any information on this. Andre Posting a pic of a Globe top control complete. Looked it over pretty good today and the insides of that control are very compact. As I said earlier anything can be repaired if enough time and money is applied to it but a complete rebuild will be a project indeed. If you want to stay as original as possible the control needs a complete evaluation to see what can stay and what needs to go. Allan |
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