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Mend Baxi WH90 Boiler Pressure

Baxi wh90 low boiler pressure?

I have 2 wh90 boilers connected onto a system, one of them is showing the code E164 low water pressure the pressure gauge is exactly the same on both 1.5, the other one is working perfect

Davge
December 2012
its either a faulty hydraulic sensor or the gauge is blocked showing false pressure. try increasing the pressure if its sealed system and see if it rises. then u know the gauge is ok. if thats the case then its the hydraulic sensor

kash
December 2012

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