Baxi Neta-tec works on water but intermittant on ch heating

[Mackattak]

It does sound like the boiler isn’t modulating correctly. Either it needs adjusting or you haven’t used the correct o-ring for that boiler as the o-ring is restricted to allow a set amount of gas through depending on boiler output.

 

[sinbad]

It does sound like the boiler isn’t modulating correctly. Either it needs adjusting or you haven’t used the correct o-ring for that boiler as the o-ring is restricted to allow a set amount of gas through depending on boiler output.

Our chap came today,after a promise to be here on Mon,Tues and Wed and set up the gas valve,still no good.Tested the sensors,now thinks it could be the gas valve.
Where does this o-ring fit as one hasnt been changed.Could it be perished
Thanks

 

[sinbad]

Our chap came today,after a promise to be here on Mon,Tues and Wed and set up the gas valve,still no good.Tested the sensors,now thinks it could be the gas valve.
Where does this o-ring fit as one hasnt been changed.Could it be perished
Thanks

Thanks for all the replies and advice.
Baxi called and calibrated the gas valve,started the boiler then stopped it and said it sounded as if the gas press was slightly high . Checked the RDS stick by plugging something into the usb port at the front and said it was ok but replaced it anyway
Another machine, a gas analyser ?, was connected to the gas valve and to the flue


Recalibrated and gas press lowered and seems to be ok so far
Again thanks for all the help and advice

 

[AMGasServices]

Baxi probably updated the software via the USB port at the front of the boiler.

It’s good to hear your issues been solved.

Thanks for all the replies and advice.
Baxi called and calibrated the gas valve,started the boiler then stopped it and said it sounded as if the gas press was slightly high . Checked the RDS stick by plugging something into the usb port at the front and said it was ok but replaced it anyway
Another machine, a gas analyser ?, was connected to the gas valve and to the flue


Recalibrated and gas press lowered and seems to be ok so far
Again thanks for all the help and advice