Alpha CB24 Flashing Lights A and B

[eccoboy]

Hi, I have an Alpha CB24 and the neons are flashing when there is demand for hot water.
They flash alternately which according to the manual means that there is low pressure, however the pressure guage is sitting pretty at just over 1 bar.

I've heard that the pressure switch may be at fault, can anyone help with advice?

Cheers Ben

 

[bellairaphon]

Try putting abit more in.

Nath

 

[45yearsagasman]

The gauge may be showing good system pressure, but its a common fault for the pressure sensors to block up and therefore not sense system pressure. de pressurise the system and remove and clean the small hole at the back of the sensor.