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Postby Brows » Thu Jun 21, 2007 4:54 pm

When trying to run hot water the flu light comes on and the water stays cold. If i move one of the joint 3 plastic pipes from the airflow switch and put my finger over one of the pipes it fires up. But as soon as I connect back to the airflow switich then flame goes out and water goes cold.

Could it be a faulty air switch or could it be a faulty flu has this only happens when it rains heavely.
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Postby wishiwascorgi » Sat Jun 23, 2007 10:40 pm

you can pick an air pressure switch up for about £20 so it would be worth trying first. If not then there could be a blockage in your flue. What type of flue is it?
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Postby toneyt » Tue Jun 26, 2007 5:35 pm

does the flue elbow have a venturi in it as thes can block
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Postby plumbers1 » Fri Jun 29, 2007 11:03 pm

Venturi vent tube in flue needs checking for dust or blockage (blow through it and clean. If not this then air pressure switch about £25.00
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