Baxi diverter valve actuator issue

[CD-UK]

Hi. Have an issue with a Neta Tec 28GA boiler that’s not been the most reliable.

Latest problem (if anyone can help), is heating works fine, but hot water is intermittent but rarely works now.

Diverter valve cartridge replaced but still no good. Weird thing happening to the actuator though, not sure if this is normal but it seems to constantly move in and out for around 5 minutes before settling down, even when there’s been no demand for heating or DHW.

I’m a fairly handy DIYer, and have a multimeter to help diagnose an electrical issue if anyone has any clues here?

Thanks

 

[Scott_1979]

Best get a GSR engineer in. Doesn’t matter if your ‘handy’ removing the case on this boiler means it needs checking by someone competent afterwards.

 

[AMGasServices]

Best to do all the basic things first on the boiler check the temperature is set up high. Etc....

 

[CD-UK]

Best get a GSR engineer in. Doesn’t matter if your ‘handy’ removing the case on this boiler means it needs checking by someone competent afterwards.

Thank you for the reply

 

[CD-UK]

Best to do all the basic things first on the boiler check the temperature is set up high. Etc..

Thank you. All the obvious things are ok. Seems like the motor is getting a sporadic / incorrect signal to activate. I’m thinking it’s a sensor or the PCB. Was hoping for someone to suggest what specifically to check, and what resistance/voltage parameters to look for. I’m 90% on the way to just getting a new boiler with the hassles I’ve had with this one.

 

[AMGasServices]

Thank you. All the obvious things are ok. Seems like the motor is getting a sporadic / incorrect signal to activate. I’m thinking it’s a sensor or the PCB. Was hoping for someone to suggest what specifically to check, and what resistance/voltage parameters to look for. I’m 90% on the way to just getting a new boiler with the hassles I’ve had with this one.

Unfortunately we can’t give you any technical information as it’s illegal to remove the cover from the boiler if you’re not competent. Get a gas engineer in protect yourself, your family and the property.

 

[Scott_1979]

Thank you. All the obvious things are ok. Seems like the motor is getting a sporadic / incorrect signal to activate. I’m thinking it’s a sensor or the PCB. Was hoping for someone to suggest what specifically to check, and what resistance/voltage parameters to look for. I’m 90% on the way to just getting a new boiler with the hassles I’ve had with this one.

I do love Baxi boilers but this model is a heap. Tonnes of issues with them.