Increased the pressure in relative's Puma 100e following being told the Low Pressure Warning light was lit. Likely cause was Water Co. engineers when fitting water meter. I found the "top up" pipe and valves and increased pressure to 1 bar when cold (as instructed by label on side of casing). Light went out and boiler started OK. After approx 20 minutes I noticed the meter is climbing. When it reached 2.5 bar I switched the boiler off because the house is unoccupied, the idea was to have the CH on twice a day during this cold spell. I checked that both the valves on the top-up piping were shut off completely (one simple on/off valve and the second was a radiator type valve). Any advice please?
I'm sure this will sound stupid, but I don't know a lot about these boilers. Does that mean a new expansion vessel and then recharging? An engineer's job?
If you can explain re an "expansion vessel" it would help me understand the problem.
Alan W
December 2009
faulty expansion vessel,requires recharging.
xgas1
December 2009
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