baxi 105e pump fault

[Razmatazz]

Hi everyone

Can you please help with this if you can I got baxi 105e boiler. Up until last night the boiler was working. This morning it was not firing up. When I reset it the pump start running but after 15 second the pump fault light lit up but the pump is still ruing for as long as the boiler is on but the boiler is not firing. No ignition or fan are working. Could you let me know is the pump that at fault or if the PCB board I mean the pump is running its not jammed.

Thank for your help

Read more: //www.diynot.com/diy/threads/baxi-105e-pump-fault.420361/#3263894#ixzz3LEEpsYzA

 

[hanns21]

If your pump is running its not the pump! More than likely the central heating diaphragm. When the pump runs the diaphragm pushes out make contact with a switch to tell the board that the pump is running

 

[Razmatazz]

Hi Hanns21

Thank you for your response. I remove the micro switch and operate manually and it start work so you are right the heating diaphragm are gone I going to order one. Much appreciate.