Question about Zanussi ZX99 / 5 Bottom Freezer Refrigerator

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Zanussi fridge zx99 / 5w not getting cold

Hello everyone.

Our Zanussi Fridge freezer - model no zx99 / 5w has stopped getting cold in the fridge. I have looked at the posts on here for help, so today I took the back off the base of the fridge and cleaned out the inlet fan, and the matrix at the bottom, front and back.

I removed the light pannel in the frigdge with the controls on it, and a bar runs into the back to the thermostat.

I would like to know, how to remove the pannel in the back of the fridge, without breaking it so I can change the thermostat.

Our problem is the freezer works, it freezes fine, but for a few months the temp alarm kept beeping , would not stop, even after pressing it, and the temp light stayed on, but the fridge was cool and all was running ok. Now it wont get cold at all.

You can hear the motor running, it runs for a while, then goes off. It sounds like its behaving normally. The fan spins up and it makes all the usual noises, but the fridge wont get cold. Can anyone help?????

My beers are warm and we have to get milk in small amounts. The model we have, has the control pcb in the base. I have taken the freezer apart, removed the pannel in the freezer, to find lots of wires plugged into various connectors. There was no obvious frost or anything frozen. A pipe runs up the back of the freezer to the fridge and can be seen on the left. I have seen pictures of another bigger fan, and want to know, is the fan in the back of this model the only one? What would I need to change, eg the thermostat? I have had the fridge off all day, cleaned it etc and lloked for faults but dont know what I am looking for! It all seems fine with nothing broken, no wire problems etc that I can see.

On plugging it back in, its fired up and seems to be working just the same, but the fridge wont get cold. Its £70 for a call out here in the Uk and I have no idea if they would be able to fix it so I am desperate for help!

Cheers! Wish my beers were cold!

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6 Suggested Answers

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Posted on Jan 02, 2017

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SOURCE: Zanussi ZX99/5SI

I had this problem with my ZX99. In my case it was caused by faulty temp sensors not making the defrost system kick into place. The defrost cycle works by heating an element for every week or so for a few minutes.

Posted on Aug 01, 2007

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eagle338
  • 4889 Answers

SOURCE: Zanussi fridge freezer - fridge not working

The defrost cycle is not happening like it should, that's what causes the block of ice (and poor air flow). If you have all that defrosted look at the defrost bi-metal, it usually is a small round disk with a couple wires coming out of it and it's clipped on the coils. When it's cold enough, it passes electricity to the heat elements, when it gets hot enough it "opens" and kills power to the heat elements. If that is bad (swollen cracked or bloated) and not passing electricity to the elements that's the problem. Another item would be the defrost timer itself, if it doesn't work (no clock motor turning) then it will never go into defrost. And the last and usually least expected failure would be the heat element themselves not working

Posted on Oct 09, 2007

dutchman05
  • 487 Answers

SOURCE: every 4 hours the fridge

sensor is broken. Normally it creates a little vacuum in the fridge( cold air shrinks) and if you have an airleak in your door seal or the sensor is broken

Posted on Apr 24, 2008

SOURCE: I have a zanussu fridge

Re. Zanussi ZK87/46EFS Fridge Freezer

The same symptom occurred in our fridge freezer. The fridge compartment warmed up whilst the freezer compartment continued to keep temperature.

The cause of our problem was diagnosed as a frozen sensor that controls a flap, that controls the flow of cold air from the freezer compartment up into the fridge compartment. We were advised to power off the fridge freezer (removing all food and trays from the freezer unit first), and to leave it to defrost for 24hrs. We needed to place a few towels on the floor of the freezer compartment to soak up the melt water. After 24hrs we followed the power up instructions in the manual (versions are available online if you have lost yours). Within a few minutes it was obvious that the fridge compartment was being cooled – Problem solved :)

Posted on Nov 01, 2008

guly
  • 67 Answers

SOURCE: zanussi zx99 fridge fault -

the problem is very common full out the plastic cover inside the fridge, check the heater glass heater or allominume heater check the continuity of the said heater if ok, check the thermal fuse conecting the wire of the heater, very small thermal fuse have plastic cover, good luck god bless boss_frnd@yahoo.com

Posted on Dec 13, 2008

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Welcome to fixya

You said, You have a zanussi fridge freezer combination, it is a frost free model, And you're developing lots of frost in the freezer which never used to happen and the fridge is not getting cold, some condensation does appear inside the fridge, it is 2years old.

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