Wire STC1000 direct to fridge ??

[rpt]

The site sponsor sells them. I got good service from him.

Cedaronics are not site sponsors any more. I bought mine from a UK based eBay seller. They are available for less from Chinese eBay sellers but delivery is slow and you may be stung for VAT and import duty.

 

[loady]

The fan will be fine if its run all the time. Most fridges have them this way any way. Just find a permanent live a neutral. Take it off the switch on the front. Make sure that its the switched side tho so that it goes off when you turn the fridge off

The problem i have there is that i am planning to remove all the switches and Pcb gubbings and just use the three wires, one of which (the black one) is the switch for the compressor...I think the purple wire though may be for the fan, or possibly the light inside... You seem to contradict yourself....saying have the fan running all the time but have it powered so it turns of when the fridge is off ?...did i read that right?

 

[loady]

@scott, you were correct about joining the black and funky brown, compressor and fridge fan turned on !!..so i went to start cutting the connector block off, i did it in an experimental way though...i cut the brown/white wire first and the fan stopped but compressor kept going..so this is one feed to the fan, cant get to the back of fan yet to see other feed but what may also be of importance..i removed the light fitting inside and this has the purple wire going to one terminal and then a blue wire coupled with blue/white to same terminal..so one was the switch on the door to acivate the light ?...wondering if i could use the live feed from the light to power the heater some how to save chasing wire for it..that then just leaves me to earth it and i can simply cut a hole through where the light fitting is

 

[gibb58]

The fan will be fine if its run all the time. Most fridges have them this way any way. Just find a permanent live a neutral. Take it off the switch on the front. Make sure that its the switched side tho so that it goes off when you turn the fridge off

The problem i have there is that i am planning to remove all the switches and Pcb gubbings and just use the three wires, one of which (the black one) is the switch for the compressor...I think the purple wire though may be for the fan, or possibly the light inside... You seem to contradict yourself....saying have the fan running all the time but have it powered so it turns of when the fridge is off ?...did i read that right?

No i mean take it off the main switch on the front of your fridge. The switch that turns the fridge on and off. Sorry it's hard explaining things over a screen some times lol

 

[loady]

Yeah, tell me about it lol. I assume you mean the wires to the physical button, in which case the button is wired to pcb and i want to remove all that ****... I found one of the wires to the fan, which is brown/white, need to remove the fan to find which the other is.

 

[gibb58]

The switch will be wired in before the pcb so you could keep the switch and just get rid of the pcb. Then you will still have a means of turning it on and off from the front

 

[loady]

Hmmm... Not sure that it was to be honest, anyway i have cut it all out now but still have the switch...i don't rely understand how this switching live works, might need to get a sparky to look at it for me.

 

[gibb58]

Basically it is that you have a permanent neutral to every thing and when you want something to stop you just break the live to it. So when the fridge is down to twmperature the thermostat just breaks the live circuit. If you have a sparky friend would definantly be worth getting him to check it.

 

[Cedaronics]

The site sponsor sells them. I got good service from him.

Cedaronics are not site sponsors any more. I bought mine from a UK based eBay seller. They are available for less from Chinese eBay sellers but delivery is slow and you may be stung for VAT and import duty.

No, I don't sponsor any more, but still sell built units, and am expecting a batch of solely STCs from Elitech in about a month's time.

 

[loady]

This is doing my nut in :wha: ...heres how i read to wire it up...i grabbed this image from a post made by kev, his STC wiring diagram has different pinouts to mine...i have altered it to show them exactly as they are in my instruction manual for it and then added the wiring as i beleive is right...but i know its fekking wrong.....i know that by joining the brown and the black wire from fridge started up the compressor.

The brown and white wire was formerly joined with thew black wire..compressor on, fan on, compressor off, fan off...wax on, wax off :grin:

EDIT: I have added this image of just my wires from fridge and how the instructions of my STC say the pin outs are, please use it to draw a schematic..i know the brown/white wire has something to do with the fan, not sure which the other wire is that is on it..but when i cut it the fan stopped but compressor kept going..

 

[loady]

I think i have it now...can someone check it ??

 

[ScottM]

Looks fine. With regards to the fan, if you want it running constantly you could probably just connect it to live. If you want it only to come on with the compressor, then just connect it to the same connection as the black cable :)

 

[loady]

Thanks... have it up and running now wired externally...i took out the light fitting...there are three wires...two of which were wired to the same terminal..when i removed the fitting the fan stopped coming on with compressor..i rejioned the wires and all was well again...im really hoping i can some how use these wires to power the heater inside the fridge, this would save me cutting holes !!..but i think the light and fan were somehow wired to the door switch, door open..light on, fan off...door closed..fan on, light off..the other end of the third wire for light is at the front of fridge..im thinking i could link it to live on heating and use it as the switch for heat via STC, then splice the joined wire at the light fitting..sound reasonable.

 

[ScottM]

Thanks... have it up and running now wired externally...i took out the light fitting...there are three wires...two of which were wired to the same terminal..when i removed the fitting the fan stopped coming on with compressor..i rejioned the wires and all was well again...im really hoping i can some how use these wires to power the heater inside the fridge, this would save me cutting holes !!..but i think the light and fan were somehow wired to the door switch, door open..light on, fan off...door closed..fan on, light off..the other end of the third wire for light is at the front of fridge..im thinking i could link it to live on heating and use it as the switch for heat via STC, then splice the joined wire at the light fitting..sound reasonable.

I wouldn't do that personally. Can you not route the wires the same way that the current ones go? As in not bother with any holes?

The heater will use a lot more current than the bulb in the fridge would, don't want to use any wiring not suitable for the current required.

You could wire it the same way as you have the compressor though, that way only one wire would be required to come from the STC1000, the neutral could be taken from where the plug connects, as could the earth.

 

[loady]

Agreed, looking at the wires they are slightly thinner, i isolated two of them and tired to use them as feed from stc but got no joy. I can't route wires the same way as they are sandwiched in foam within the skin, i managed to get the top skin of the fridge off and found a blue wire that loops back on itself, think it goes to the fan but without digging all of the foam out i won't know so i guess i am going to have to drill holes, oh well never mind.

 

[loady]

Nearly finished!... Today i set up a 12v pc fan to a 12v psu, works perfectly with a gentle breeze, was wondering would it be a good idea to have it running constantly or better to have it running only when the heater is on, blowing on to it, its quite easy to wire it up to switch with the heater, just thinking about wasting the old leccy.

 

[ScottM]

Nearly finished!... Today i set up a 12v pc fan to a 12v psu, works perfectly with a gentle breeze, was wondering would it be a good idea to have it running constantly or better to have it running only when the heater is on, blowing on to it, its quite easy to wire it up to switch with the heater, just thinking about wasting the old leccy.

I run my PC 24/7 and I've never had a fan fail on me yet so I wouldn't worry about that side of things.

Running a fan for a year will probably cost you £5 total lol.

 

[loady]

I understand that. What i was getting at, is there any benefit to a fan running in such a compact environment when neither the compressor or heater is running ?

 

[ScottM]

I understand that. What i was getting at, is there any benefit to a fan running in such a compact environment when neither the compressor or heater is running ?

I would say yes. With the heater off it'll still be a hotspot while it's cooling down. Also the FV will be the main driver of the temperature at this point so having the air circulate around it can only be good.