Error 33 Ariston microgenius

  • Thread starter Thread starter marsaday
  • Start date Start date
M

marsaday

Any idea what this code is to do with. The APS has been changed and we still have the same code.

Does the fan need cleaning ?
 
am sure these work on negative ie the fans suck the air pressure switch into a closed position cheak the tube that connects from the fan to the APS
is not blocked with anything.

should be cheaked by an RGI tho
 
this is being sorted by my gas man, but it is a bugger of a boiler and he has changed a gas valve already.

E34 and 33 have popped up recently. Now it is the E33 code.

The tenant has said the water is not as hot as it should be, but the boiler is now firing back up on its own and she doesnt have to keep doing it manually.
 

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