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    Is my AAV faulty

    I have a Glowworm Swift Flow 80 that recently had a new fan due to the whole thing failing. Fault was still intermittent so a plumber came and had a look and said that the AAV was missing a rubber seal, so allegedly fitted one. It then turned out that the PCB needed a few dry joints sorting...
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    Pressure too low / high ??

    I have a Glow Worm Swift Flow 80 that keeps dropping the pressure down to about 0.5 to 0.7 PSi when the heating in not on. When it's on, the pressure can go up as high as 3 Psi. It all seems to work o.k. but could I have a problem. I've bled the radiators and they seem fine so I'm just...
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    Glowworm Swiftflow 80 not heating water. New fan fitted.

    7 Year old glowworm swiftflow 80 (honeywell) has recently got a bit noisy and last week, out of the blue stopped heating either when the hot water is on or when the central heating is on. It sounded like a classic fan issue, so I've changed the fan for a new one. It worked straight away for...
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