PCB fault on baxi 105e

[KevC1]

Hi,
Fitted a diverter valve on a 105e today. After fitting I got a 'pump fault low pressure' flashing neon.

The pump runs, and there is enough pressure, so i'm thinking it may be a PCB fault. Anyone else had this problem?

Thanks.

 

[Corgigrouch]

Blocked pressure switch?

 

[KevC1]

It fires on hot water demand though.

 

[namsag]

Perfectly ok before...... Water into the board very easily done on a 105

 

[Agile]

Does this look for a change in pressure when the pump starts?

Like the Vaillants?

 

[KevC1]

Yes I was thinking it was a bit of water into the PCB......another trip to parts centre then!