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Author Topic: compressor nightmare  (Read 12972 times)
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kev_7680
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« on: November 23, 2015, 07:38:17 pm »

I have a coke vendo 39 that has its original compressor. I had to change out the thermo because all my pop froze and exploded. After I replaced the thermo after a week of running great I went to get a pop and it was blowing hot air. so I made a post and they told me to try and put a dryer on the line. After 2 months the guy finally came by and put it on and it cycled and started to cool. At lunch the next day I went to get a cold pop and you guessed it warm pop again.It turns on for about 30 sec then shuts off and keeps repeating   So after $250 and a few hrs of working im back to where I started. Is there a way I can just wire it straight to compressor to make sure it is done before I buy a new one and its not the relay? I remember reading somewhere on here that you can, if so does anyone have a wiring guide for dummies (I mean real dummy...LOL)....thanks for your time kevin G

forgot to mention when the guy put dryer on he vacuumed everything out, put in new stuff and said compression levels were good. Don't know if a 3-1 switch would help?
« Last Edit: November 23, 2015, 07:49:59 pm by kev_7680 » Logged
Yarochrehc
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« Reply #1 on: November 23, 2015, 09:16:58 pm »

How comfortable are you with working with electricity?
When the tech. installed the filter drier what type of refrigerant did he use?
Some new refrigerants won't work in old compressors. Might have blown compressor
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Bob

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MoonDawg
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« Reply #2 on: November 23, 2015, 09:40:13 pm »

when the guy put dryer on he vacuumed everything out, put in new stuff and said compression levels were good.
Don't know if a 3-1 switch would help?

      So the system is fully charged now, but after he left the electrical stuff failed?  darn 
      This is a different problem, but yes try installing a 3 in 1 relay............. you can do it yourself!
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Glen
kev_7680
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« Reply #3 on: November 23, 2015, 11:35:52 pm »

Ok read on here where someone on here used a rubber mallet to free compressor. So I plugged it in and played wayk a mole and it started and cooled down, but when it went to cycle it didn't come back on...so do you think a 3-1 will fix my problem?
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Slapshot42
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Jared


« Reply #4 on: November 24, 2015, 12:09:02 am »

Ok read on here where someone on here used a rubber mallet to free compressor. So I plugged it in and played wayk a mole and it started and cooled down, but when it went to cycle it didn't come back on...so do you think a 3-1 will fix my problem?

Yes a 3 to 1 start relay would plug into the original compressor bypassing the 70 year old original relay.  You can find them at any local appliance store if you are in a hurry you can get one from one of the site sponsors!

You can wire a new one up in less than 5 mins...
« Last Edit: November 24, 2015, 12:10:44 am by Slapshot42 » Logged
kev_7680
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« Reply #5 on: December 02, 2015, 08:49:29 pm »

ok i bought the 3-1 and want to make sure im cutting the right wire. i found a video on youtube but mine doesnt have the same box. I assume im to pull the plug right at the compressor and cut plug end off?

if allowed here is video i found

http://youtu.be/H6xUI7aXY_A
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Slapshot42
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Jared


« Reply #6 on: December 02, 2015, 09:16:48 pm »

Unplug any existing relay out if the start / overload box.  The 3 to 1 ( new one ) will have a spade terminal on each wire plug one to each the the start / overload of the compressor.

The old relay is a little plastic box when loosened will slip right out the small cover housing area.

The other wires are explained well in the video!
« Last Edit: December 02, 2015, 09:21:29 pm by Slapshot42 » Logged
Slapshot42
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Jared


« Reply #7 on: December 02, 2015, 09:20:12 pm »

That's a pretty good video.  Watch a few more times and you will get it!!! biggrin
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kev_7680
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« Reply #8 on: December 02, 2015, 09:30:35 pm »

That's what I'm talking about if you look at my compressor pic attached I don't have a box just a direct plug. Is that what I cut
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Slapshot42
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Jared


« Reply #9 on: December 02, 2015, 10:42:46 pm »

That's what I'm talking about if you look at my compressor pic attached I don't have a box just a direct plug. Is that what I cut

There would be 2 wires that connect from the original relay to the start and overload on the compressor .  They should have small spare terminal on them.  Pull those 2 wires off.  Those wires should go to the old relay.  When removed properly you should be holding in your hand the old plastic relay that has 2 wires coming out of it.  

Does the new start relay have spade terminals in the the end of the 2 wires?
« Last Edit: December 02, 2015, 10:44:32 pm by Slapshot42 » Logged
kev_7680
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« Reply #10 on: December 02, 2015, 11:11:30 pm »

If you look at the picture I don't see a old relay.....all I see is one plug going into compressor no box just 1 plug
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Slapshot42
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Jared


« Reply #11 on: December 02, 2015, 11:38:45 pm »

The old relay is the plastic piece directly above the green tag on the right upper corner .

Just follow the wire to the circle of the left side of the picture and unplug it...

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kev_7680
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« Reply #12 on: December 02, 2015, 11:41:56 pm »

Ok I guess I was explaining wrong but that circle is what I meant...ok take it off and use what wire is left attached and use 3-1....
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Slapshot42
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Jared


« Reply #13 on: December 03, 2015, 12:23:16 am »

Yes there should be two connections slots on the circle ( start / overload) plug the 2 wires from the new 3 to 1 into it.  The remaining wires are your power to the relay, ground, etc.
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MoonDawg
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« Reply #14 on: December 03, 2015, 10:31:44 am »

       The problem is your picture, it's too small to identify your style compressor.  biggrin
If you have the early model 39 I believe they were different, does that thermostat and relay share the same box?
But if so, how did you install your t/s?  Anyhow, the 3 in 1 would still need to be mounted directly to the side of the compressor but you will not use those slip-on terminals, rather you will need to cut them off and install ring terminals
then wire them in the same order as shown in the video.
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Glen
kev_7680
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« Reply #15 on: December 03, 2015, 10:38:47 am »

Every time I tried putting photo on it said it was to big. That's my problem there is no box just a 2 wire plug straight to side of compressor. I'm going to try and pull plug and re take photo before I cut..the stat ran to junk ion box with compressor fan
« Last Edit: December 03, 2015, 10:40:30 am by kev_7680 » Logged
kev_7680
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« Reply #16 on: December 03, 2015, 11:26:39 am »

Sorry for all the posts but i don't want to cut something i shouldn't. Lets see if this helps me i made a video of my compressor to try and show what i think should be cut...thanks again kevin

https://www.youtube.com/watch?v=ywhNrhyxk_0
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Slapshot42
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Jared


« Reply #17 on: December 03, 2015, 12:17:19 pm »

       The problem is your picture, it's too small to identify your style compressor.  biggrin
If you have the early model 39 I believe they were different, does that thermostat and relay share the same box?
But if so, how did you install your t/s?  Anyhow, the 3 in 1 would still need to be mounted directly to the side of the compressor but you will not use those slip-on terminals, rather you will need to cut them off and install ring terminals
then wire them in the same order as shown in the video.

I was having the hard time with the picture I was assuming it was slip on type like many compressors!
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kev_7680
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« Reply #18 on: December 03, 2015, 12:21:00 pm »

So what I was saying on video correct. Cut circle peace off near compressor not black box on bottom
« Last Edit: December 03, 2015, 12:34:52 pm by kev_7680 » Logged
kev_7680
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« Reply #19 on: December 03, 2015, 02:03:13 pm »

ok this is what i found when i pulled cap off........is the plastic box on bottom what i am to eliminate? not the plug

https://www.youtube.com/watch?v=_IJe1zcGqXA
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MoonDawg
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« Reply #20 on: December 03, 2015, 04:42:07 pm »

       Wow, that must be a Canadian compressor, I have never seen a pecker head with so many terminals.
Our compressors only have 3 terminals : start, common and run.
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Glen
kev_7680
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« Reply #21 on: December 03, 2015, 11:18:49 pm »

So does that mean I can't use 3-1?
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johnieG
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This is fine...everythings going to be OK....


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« Reply #22 on: December 06, 2015, 11:05:17 pm »

replied to your PM, hope this helps, if you have an OHM-meter you could sort it out in about ten minutes,
( I could any way)  biggrin
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