Appliance Repair Questions? Ask a Technician for Answers ASAP
Hi, I can try what is the issue?
The relay part number wr7x11 and it just has 3 poles not 5 and this is throwing everyone off
3 wires coming into it
What is hooked up to it?
let me try to describe.. i type slow sorry
Thats ok i use the hunt and poke method too
There are 2 wires coming down the back of the fridge one goes into the compressor and the other connects to the #4 post on the relay. Then there are 2 wires coming up from the compressor on black and one white. The black one attaches on the relay at post #3 and the other to post # XXXXX 3 and 4 are on the top of relay and #1 isat the bottom. Thats all the wires involved.
I just looked up the relay and couldn't find anything on it, not sure what wires and from were are on the relay, typically on a relay the common goes to run the hot goes to the common on the compressor and if there is a capacitor on it that wire goes to the start winding and one that goes the capacitor also attaches to the run the other wire may be a pickyback for something else.
Any idea on replacing this part or is this something I will need to have looked at?
No it's not available and i couldn't locate any kind of replacement but somebody may have replacements listed in a book at a parts store or you can check mars relays they are a good source also
I had a parts store sell me a supco 5 wire relay. They told me it would work. But after I bought it they couldn't tell me how to install it.lol
I guess I will have to have someone come out to look at it
I think i helped somebody once before on one of these i had him trace were the wires came and went from and we were able to get it running again
You would need a meter also and give me an ohm reading on the terminal and then which wires were hot and which is common but we did get it wired up and running
Yep I found that when I was googling. Thats why I came here. He had a 1950 GE with 6 wires going into his relay
Yes ok i thought this was familiar
they sold you a round 3 in 1 relay?
it has 2 wires for incoming power and then 3 that go to the compressor?
That figures we in the industry do not like those and are only for last resorts
we actually call them compressor fryers
they tend to burn out compressors
Give me some time and let me research this i may be able to find a replacement relay that would be easier
I will send a message when i find something
but i would not recommend that relay at all
k this is my first time here. I can just close this and come back to it later?
yes press save and exit and remember your log in info or copy and save the direct link
Have a good day i will let you know one way or the other
Ok according to mars replacement guide the replacement for your old relay is mars number 21310 you can try ordering from a parts store or from mars, being such an old style relay mars would be your best bet.
Tim could you post a link to this item? When I search mars by this part number nothing comes up.
I don't understand their website they have a cross reference guide and lists that but you can't find it on there website or catalog.
Its in their product cross reference and pdf files not in their online site, you will have to have a supplier order for you I think, they may only be wholesale but that is their part number for the replacement of your wr7x11.
O.K. thank's Tim, I will see if I can get one ordered on Monday. I am guessing it will hook up the same or very similiar.
Most of those do come with instructions but it should be very close to what you have.
Tim do you have anyone I could order this part thru? I have tried several contacts and I can't find this part anywhere. Could the relay in this link be of possible use?
Nobody has one or can order one from mars?
If they can't find it or get it I don't know what else to tell you on that relay.
Not that I have found local
could that be of use
You can try partselect, appliance parts pros, appliance zone
If it is not available then the only option would be the 3 in 1 relay I do not like those but sometimes that is the only option
Thanks I will.. You have been more help than my local guys lol
Ok let me know we can use that 3 in 1 if that is the only option but you will have to have a meter and tell me were the wires go and come from but we can do it
I will Tim, give me another day or so and I will let you know.
Ok your welcome.
Hi Tim no luck on the relay hunt.
Not much more you can do other then try the 3 in 1
Yeah I know
Here is a bit of info I think will help
can i paste here?
1. There are two wires coming down the back of the fridge. One goes right into the compressor, and the other goes to the relay (lets call this "U" for the upper wire.
2. There are 2 wires coming up from the compressor a black we can call it (LB) lower black and lower white (LW)
connection of "u" to "lb or "lw" gets a resistance of 1.54
but the connection of "lb" to "lw" gets a reading of 20.0
You can try or click on the papaerclip to upload or paste links
resistance of 20?
that is pretty high
that's like a heater
I think I did it right
Do you know what they go to?
To wire that it has 1 hot wire and one common wire
one of those goes through the thermostat
I think one of the upper goes to the thermostat, both lowers come right out of the compressor to the relay
and then there are three wires from the 3 in 1 that go to the compressor
Usually the hot wire goes to the common on the compressor
the neutral goes top the run
and the start is powered by the relay
Usually the hot wire goes through the thermostat and the common can come from anywhere
the hot should be black or red
i said common but mean neutral
The neutral is usually white
Not sure if this helps but, at first i did not have a multitool to check the wires so I used a circuit tester to see what was hot. When I touched the top wire to either lower one i got as completed 120v circuit
one sec someone at the door
How many wires are on the relay that do not go to the compressor?
one the upper
what color is that and did that have 120 volts to it?
Its white and is the nuetral i think
I think it goes to the thermostat
Yes that would be the neutral so that goes to one of the lines that are hotwired on the 3 in 1
one of the black?
yes one of the black wires that does not have a connector on it
One of the wires that had 120 volts should be your hot wire
now either the neutral or the hot could go through a thermostat
so one of those should come from a thermostat or control
so if the upper is the thermostat wire and neutral it hooks to one of the black connectors and the other hooks to the hot line?
Yes that is correct
then which other wire is not getting used? That leaves the r,s,c wires
those go to the compressor
the r is run
the s is start
and the c is common
to determine which wire goes were take a resistance reading between all 3 terminals on the compressor
between run and start would be the highest resistance
I can't get to the terminals without taking the compressor apart
That would be the 2 lower wires
taking it apart?
you mean the relay and wires off?
The wires go insidee the compressor there is no way to unplug them
how many wires go inside the compressor?
3 one comes from the top of the fridge and goes into the comp without stopping
ok that is probably the common on the compressor
take a reading between all 3 wires and let me know what the readings are
Do I need to splice into it to check it?
wow i have not seen one of those compressors since high school
a long time ago
Just strip the wires bare
if you have to go ahead and cut
4 wires all together--- one goes straight into the compressor so I assumed that would be the hot wire. Because when I plug the fridge in with no relay. I had juice coming from the compressor
do you want me to get back with you. Might take acouple of minutes
That's fine i will be on for a while
The new 4th wire to lw=18.2 4th to lb=2.
4th to uw=1.52
4th wire only had a complete 120v circuit when connected with the uw wire
4 wires going into the compressor?
you have 4 wires going into the compressor?
I just wanted to see the resistance with the upper wire to
Those readings dont make sense
the 2 lower resistance readings should equal the high reading
hmmm. I can go double check, maybe I had a wrong setting or something.
yes please do and make sure all you are touching are the wires going into the compressor
let me know thank you
ok the 2 lower wires=19.3 the 4th and the lw = 17.5 the 4th and the lb = 1.5
ok the 2 lower wires would be the start and run
lw would be start or the 17.5 reading
the lb would be the run
the other wire is the common
the upper white? correct
and i have to splice the two back connection int the 4th
no when you wire the wires to the relay there is color designation for each wire going into the compressor
on the relay or the instructions it tells you what wire goes to start run and common
Those are the red white and black wires. I just meant the 2 black power wires on the relay
on the top of the relay
those don't get splice to any wire from the compressor
2 black power wires?
oh, I see...
what do they go to
well the relay has 5 wires 3 color coded and then 2 black wires
the 2 black on the relay are for the hot and neutral
Do I not use them
those power the relay
the colored wires go to the compressor and nothing else
oh sorry Tim.
yes all 5 of the wires have to be hooked up for the relay to work
the 2 black are for power
the other three go to the compressor
Ok good let me know when you have it hooked up
I was thinking I was supposed to wire the relay into the hot wire going to the compressor
to many wires seam to mess people up going to and coming from
it may help you understand if you look at the relay and read the instructions then i think you will understand better
there may even be a diagram on the relay also
I will let ya know
ok tyhank you let me know how it goes or if you have any further questions
Tim I wired it as we discussed, but nothing happened at all. So I reversed the run and start connection and it fired right up. I diconnected it, as I am not sure this is safe or correct. But the fact that it's running and cooling is a good sign.
It was running and cooling when you had it hooked up?
Ok good if it's hooked up wrong it will wither not run at all or click off on overload if it was running and cooling that's it.
Looks like you did it
one last thing
I did not want to tear into wiring as of yet so I made a pig tail plug and wired the relay seperatly, just to test it. There are no old power wires not going to the compressor in the immediate area. Am I going to have to dig and find some. Sorry f this is dumb.
I don't understand what you mean?
For power to run the relay...
oh you hooked it up hot?
I was under the impression not to use the wires going to the compressor
to run all the time
what were the wires going to the compressor again?
were there 2?
one power to it and 2 coming off of it
plus one going to the relay, we figured was a return or neutral
ok one of those has to be a hot wire that goes to the relay the 2 that came off the relay i need to know were they go or come from and then one may be a neutral for the other power to the relay or the relay just could have been used as a junction for power or neutral
Thats what I was wondering it seems to be a junction
I'll be right back im gonna try something
Ok that's probably what it was then
Tim I'm gonna close this out soon. The fridge is running on the hot setup, but not on any other. Possible thermostat??
Yes that would be a thermostat that is not operating
good job on getting the compressor running
I wish i had a wiring diagram but nothing would be available on the net for this old of a unit ge probably wouldn't even have one at this point
but the thermostat is just a switch that opens and closes it should have hot going to it and coming out of it
Thank you very much! I will highly reccomend you!
Your welcome, please remember to press the accept button and leave a comment, thank you and have a great day
I mean thats what tells the compressor to run right
or provides the power
Yes that is correct that is what cycles the compressor on and off