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