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F5 fault ?
I recently repaired a leak on a rad valve, ?
My Glow-worm Flexicom 30SX looses pressure 0.0?
what dose fault f4 mean?
what causes the sabre he 25 to come on, on its own?
Is it normal that the flame is burning all the time?
sabre 24?
how can l fix my gas control valve?
Glow-worm 40B system top-up and inhibitor issue?
Glow.worm ultracom 38 cxi showing f25 faultcode?
central heating wont turn off?
Clearing a blockage from a heat exchanger?