Gas valve/wiring/pcb fault Engineer visit required
Tag:
boiler-error:boiler error
Flow switch stuck closed Engineer visit required
Flow switch stuck open Engineer visit required
External sensor fault Engineer visit required
Gas supply fault Check gas is turned on, if prepayment meter check there is credit. If all ok and E133 persists – contact Engineer to visit & investigate
Overheat Check radiators are bled
System water pressure low Add water via filling loop
System water pressure high Bleed water from radiators
Overheat Check radiators are bled
Parameter error Installer to call back to reset parameter(s)