Grant Vortex Pro Combi Fault Codes

CombiOil Oil 21-36 kW 2014-present

All 9 fault codes

Code	Severity	Plain English	DIY
Boiler controls	High	Your boiler appears to have no power reaching it or the main switch has been accidentally turned off.	Yes
Burner	High	The burner on your oil boiler has shut itself down for safety, which means your heating and hot water have stopped working.	Yes
Burner	High	Your boiler's main control board has detected an internal electronic error and can no longer safely operate the burner.	Engineer
Demand	High	Your boiler is not currently receiving a signal from your timer or thermostat telling it to switch on.	Yes
DHW pump	High	Your boiler is struggling to manage the temperature of its internal hot water store, meaning you likely have no hot water available.	Engineer
Flow	High	Your boiler is not detecting that a hot tap has been turned on, which is preventing it from heating your water.	Engineer
Heating system	High	Your boiler has stopped working because the water pressure in the pipes has dropped too low.	Yes
power	High	Your boiler has lost electrical power and cannot start any heating or hot water functions.	Yes
Power supply	High	Your boiler has lost its electrical power supply and cannot function at all.	Yes

Monthly cover means no unexpected bills when your boiler breaks down.