Electrolux TR1178S – fridge not cooling – freezer OK

[vinceofarrell]

This is an old fridge-on-top-of-freezer combo. Bought secondhand and has worked well for 9 years. Has two independent pump/cooling systems I think.

Model: TR1178S
Prod No: 9246501-10
Ser No: 24503259

Just realised that fridge is not cold and pump is not running.

Fridge door switch and light work. Fridge temp control has no effect on fridge pump.

This site was great help last year in my fixing problem with old Bosch dishwasher. Can you help this time by suggesting tests to isolate fridge problem to thermostat or pump?

Regards

Vince

[vinceofarrell]

Re: Electrolux TR1178S – fridge not cooling – freezer OK

OK, I’m assuming problem is most likely failed fridge stat. I’ve looked at what I assume is the original stat – it’s a Ranco K57 P2018. From a quick gander on the net, it looks as if this may have been replaced by the VT72.

Are the readily available universal K59/VT9 stats equivalent in terms of switching temps, and wiring? The existing K57 stat has 3 terminals: black and brown wire connections from 4 core mains cable with another brown switched live running from third terminal to door switch then light bulbs. A blue wire from the bulbs back to the supply completes the circuit.

Is it the black which is the switched-by-stat live to the pump?

Thanks for any advice on this.

Vince

[vinceofarrell]

Re: Electrolux TR1178S – fridge not cooling – freezer OK

Me again. Got a VT9. The old capillary seems to be fixed in some way behind the evaporator panel. Is there some standard technique for getting it out?

It goes into a white plastic sheath and then there seems to be a tube down which it is routed on the back of the panel. At the bottom of the panel is the other end I think – appears to be a small black loop which seems by feel to come out of the bottom of the tube.

The panel seems to be sealed into the rear of the compartment and so cannot be removed. Am I missing something in all this?

TIA

Vince

[helo_75]

Re: Electrolux TR1178S – fridge not cooling – freezer OK

just pull it out

then push the new probe in till you cant push it ne further

job done

[vinceofarrell]

Re: Electrolux TR1178S – fridge not cooling – freezer OK

Yes, that’s what I’m trying to do but there is something stopping it. I’ve already broken the sheet of glass over the chiller boxes at the bottom through the force I’m applying.

Questions:

1. The loop poking out the bottom of the tube and which I can pull so that it is visible below the evaporator panel seems to be plastic covered steel rod and not flexible capillary. Any thoughts on what its purpose is and how it is joined to the capillary? I’m tempted to try and cut it off or would it be better to cut off the capillary near the top of the panel?

2. The evaporator panel seems to be held in place in a vertical slot in each side of the cabinet side mouldings. Would you expect it to be removable?

3. If I have to leave at least part of the old capillary in place and feed the new one behind the panel in a different place or way, will the thermostat action still work reasonably well?

4. Has anybody got a parts diagram which shows how the capillary is routed/fixed?

Regards

Vince

[Washman]

Re: Electrolux TR1178S – fridge not cooling – freezer OK

Hi

There should be at the bottom of evaporator plate 2 screws which hold a small plate behind the evaporator . Undo screws and release thermostat capillary tube (there is most likely a loop of capillary there)then straighten out the loop and pull capillary out . Be careful when installing new thermostat do not damage capillary tube by kinking or cutting.

POWER OFF AND PLUG OUT AT ALL TIMES

Mike

[vinceofarrell]

Re: Electrolux TR1178S – fridge not cooling – freezer OK

OK. Got it out. Needed to break off bottom few inches of looped old capillary, then it came out with a struggle.

Mike: No obvious screws holding it in position – front of evaporator is just a flat featureless plate.

Now to fit new VT9.

Thanks for all the support so far.

Vince

[vinceofarrell]

Re: Electrolux TR1178S – fridge not cooling – freezer OK

New VT9 fitted and fridge working again. Will monitor temps and settings over next few days and post hopefully the final result.

Thanks for assistance.

Vince

[vinceofarrell]

Re: Electrolux TR1178S – fridge not cooling – freezer OK

New VT9 stat seems to cut out/in at lower temps than original so I need to turn dial down to about 2 to arrange for temp in centre of fridge to be 3-4 degrees. Previously, it was set to middle of range, 4. Otherwise, working fine. Thanks again for help.

Vince

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