Vokera Pinnacle System fault codes

19 codes from the Vokera manual for the Pinnacle System gas boiler. Pick one for what it means, the likely causes and where to start.

Code	What it means
COM	Appliance PCB communication lost
E010	Maximum number of ignition attempts
E011	Parasitic flame
E020	Limit thermostat
E021	Gas valve control malfunction
E033	Rotor fan failure damaged
E034	Chimney obstruction in preventilation
E035	Blockage obstruction flue gas low power
E036	Blockage obstruction flue gas high power
E040	Low water pressure (definitive fault/lockout)
E041	Low water pressure (temporary fault)
E050	Smoke obstruction error low power
E051	Smoke obstruction error high power
E055	No card fan communication
E075	Valve opening limit reached
E077	Absence of communication with low temperature thermostat
E091	Primary heat-exchanger cleaning fault
E099	Reset attempts exhausted
FIL	Low water pressure (warning signal)