Glow-Worm Xtramax HE Boiler Range Error Codes

Glow-Worm Xtramax HE Boiler Range Error Codes Codes Description F1 Ignition fault F2 Fan F3 Fan F4 Ignition fault F5 Overheat Fault F6 Central heating flow thermistor F7 Domestic hot water thermistor F8 Tank thermistor F9 Water pressure sensor fault (please contact GW technical department for further information) F10 Central return flow thermistor F11 Main board connection fault F12 User interface …

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