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Mend Aqualisa twin 3 bar Pressure Switch Check

pressure senors?

I have a Aqualisa twin 3 bar pump that will not switch off! this not due to air in the system.
How can I check the water pressure senors?

Big roger
November 2009
Flow switch does not drop back when taps are closed
may be stuck or jammed

Mr K
November 2009

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