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Hi there, looking for some help on how to diagnose a fault or whether it’s just better just to scrap and buy a new fridge/freezer. My Zanussi-Electrolux ZENB 2625 has been unused for a couple of years and sat in the garage (came with the house), wanted during the current pandemic to fire it up for obvious reasons. It’s circa 2006, so pretty old anyway, but was pretty immaculate so kept hold of it.
I’ve cleaned and fired it up – but although liquids are freezing, stuff like bread isn’t getting that solid. I bought some thermometers and found it’s far from ideal freezer temperature – nowhere near -18, would estimate around -8. The fridge compartment is around 7. The temperature control valve is on full.
I’ve dusted off the radiator at the back as part of cleaning it up. I was also worried that due to it being in the garage it was too cold, so monitored the temperature in there and it hasn’t got below 10, so though it would be fine.
It’s obviously cooling, so I’m not sure whether it’s a gas issue. I also don’t know if it’s something to do with the condenser – I can hear noises at times, but I don’t always get a loud click when turning the temperature control and a sense that the motor is kicking in.
Any advice how to diagnose the fault would be gratefully received!
well its obvoiusly running otherwise it would not get cold at all
i cant find your model listed so may be a typo. looked up a similar number and its controlled by a board. that means the stat wont click it also governed by software which may mean it wont react immediatly to control input
try to find out if the compressor is running non stop. if yes then prob a gas or compresssor issue if no then it could be a control problem turning it off to warm
Dave
Obviously too late at night! It was a typo – ZENB 2625 prod no 925 886 707 – I don’t think the compressor is running non-stop as it is very quiet at times, in fact, if I had to guess anything, I’d say it’s not coming on enough. I was worried the whirring I was hearing was just the frost-free fans going. Doesn’t really have a good buzz about it! I can hear a snapping going every now and again and presume that’s the auto-defrost. Could it be the start relay? I presume a start relay and a motor protector are the same thing?
unlikley to be start relay or protector. That normally leads to no cold at all
find this out
is compressor running for around 30 mins then does not run for around 45min then runs again for 30 and so on ?
Dave
Hi Dave – is the easiest way to find that one out, just to pull the device on the back and just check for vibration coming from the compressor unit?
Cheers,
Chris
roguerogan wrote:Hi Dave – is the easiest way to find that one out, just to pull the device on the back and just check for vibration coming from the compressor unit?
Cheers,
Chris
yes that works
the reason I ask this is the machine has a fail safe mode. if the sensor is not correct the machine starts to do times freezes to protect food. If its doing this the depending on your level of skill we would need to measure the resistance of the sensor
Dave
I did not make any sense there… glad you’re understanding me! I’ll shift it out and keep checking today the. Thanks again.
Hi Dave, have checked on it quite a few times after pulling it out and just put my hand on the compressor to see if it’s running. I have to admit, at the moment I believe it’s continuously running, I’m yet to find it off. I’m guessing it’s a gas issue if that’s the case? I don’t mind sticking a multi-meter over the sensor if it’s easy to locate?
Cheers
Chris
if its on all the time it cant be a sensor issue. my guess is its a gas issue or possibly compressor. In which case its a proffessional job only
Dave
Yeah, that’s my worry too – I’ll keep checking it today to see if it goes off – but guessing I’ll be buying a new one. Thanks again for your help, much appreciated!
thermistor is still available
https://shop.electrolux.co.uk/fridges-freezers/fridges-freezers/electronics/fridge-freezer-ntc-temperature-sensor/p/2262273010to check thermistor you going to need a thermometer and a multimeter
the thermistor is in a flap at the back of the fridge but you need to access control panel first
remove control panel. this will mean apart from screws using a screw driver to unclip the panel where there are lugs on top of the unitwhen off remove ntc connector (C) and measure between the wires. the resistance must be close to value for the temp inside the fridge
Dave
Hi Dave, pretty sure I got the right terminals – but I got an odd reading on the multi-meter, it was on kOhms and I got 0.638, my rubbish thermometer from amazon which just tells you whether you’re really foodsafe is around 6/7 degrees C I think.
Chris
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