I know its unlikely, but does anyway in the group know where I can get
a copy of the service manual for the saunier duval 620 combination
boiler, the machine is 16 years old now, and has been doing really
well, but although the pilot light flickers away quite happily, it
fails to start up when the timer switches it on. The diaphragm sensor
switch seems to be working ok though.
One thing I did notice, is that the water pressure was very low this
morning when the kids were complaining about the cold water, less than
half a bar, I did fill it back up again to 2 bars, but wonder if the
pressure sensor tripped, and maybe needs resetting, any ideas?
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