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GLOW_WORM SPACE SAVER MK11?

HI,

The above boiler works fine, but when I switch the dial to W-ON & H-OFF. The heating still stays on?

Any advice would be great!

THANKS
Michael, May 2008
Do you have a mid position valve in the system ?? If you do, it's probably this that has stayed in mid position after the winter....

Scooby Doo, June 2008
link Click here to see other fixes for Glow-worm Space Saver MK11.