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Mend Glow Worm 18HXI Home Heating Systems

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Mend Glow Worm 18HXI Boiler Model Working

What F9 mean on a Glow Worm Boiler model 18hxi?

Boiler not working Cde F9 flashing not in book

Keith Dixon
January 2009
Glow Worm 18HXIHeating, Home Heating SystemsBoiler Model Working
F9 Means faulty water pressure switch/sensor. Check water pressure in system, the wiring, test the switch and replace if nedded!

mark
October 2009
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