Ariston MBA3842C fridge-freezer no error on malfunction

[admin]

Ariston type CM01XE s/n 210300264 after cooling down the fridge part(uper) to the set temperature he close the trap(I do not know the definition) and compresor continuing the work until rich the set temp. for freezer. That’s OK. But after that he don’t open the trap for air to cooling the uper side even temperature rich chamber temp +24degree. No error when have +24’C 🙁 for fridge and -21’C 🙂 for freezer and compresor is in relax pozition. 8)
Any direction or service manual is require. ❓
Thanks
Baron

[Dave_Conway]

Re: Ariston MBA3842C fridge-freezer no error on malfunction

There’s no information on this model in the UK I’m afraid Baron but I would supect the fridge sensor or the PCB to be honest.

Dave.

[Penguin45]

Re: Ariston MBA3842C fridge-freezer no error on malfunction

Does Baron mean the flap for the air vent is not functioning?

Chris.

[johnnyj]

Re: Ariston MBA3842C fridge-freezer no error on malfunction

I would suspect similar to uk version thermistor fauty, there is a module to overcome this as the thermistor is non replacable.

[admin]

Hi all, I received in night an suggestion from merloni service how to check this malfuction which allready exist in database(service manual). It meens the corespondence between temperature and resistance of temperature probe(sensor) and if its decalibrated just on the main PCB to make an strap(SCC) between pins 5 and 6.
I will try today and say whats happend. Cheers

[admin]

Re: Ariston MBA3842C fridge-freezer no error on malfunction

😯 Thermistor was decalibrated, it show at chamber temperature (24’C) the resistence 5.7KOhm( at that temperature must have aprox.2.6KOhm). I made the short between pins 5&6 (counting from left side). Work fine for 36hours allready.

Perhaps help you guys in future. 8)

Baron

[Author]

Posts