Ravenheat Boiler Error Codes

All Ravenheat Boiler Error Codes

Ravenheat boilers display numeric fault codes on the digital display. Here is the complete list:

Code	Meaning	Quick Fix	DIY?
01	Ignition failure - no flame detected	Check gas supply, thaw frozen condensate pipe, reset	Partial
02	Flame loss during operation	Check gas supply, reset boiler	Partial
03	Overheat protection activated	Let boiler cool, check circulation pump	Partial
04	Low water pressure	Top up pressure using filling loop to 1.0-1.5 bar	Yes
05	Flow thermistor fault	Reset boiler	No
06	Return thermistor fault	Reset boiler	No
07	DHW thermistor fault	Reset boiler	No
08	Flue overheat	Let boiler cool, check flue is clear	No
09	Fan fault	Reset boiler, check flue terminal	No
10	Air pressure switch fault	Reset boiler	No
11	Gas valve fault	Reset boiler	No
12	False flame detection	Do NOT repeatedly reset - call engineer	No
13	PCB fault	Reset boiler	No
14	Pump fault	Check pump operation, reset	No
15	High system pressure	Bleed a radiator to release pressure	Partial
16	Frost protection active	Normal operation in cold weather	Yes
17	Anti-cycling mode	Normal operation, boiler protecting itself	Yes
18	Condensate pipe blocked	Thaw frozen condensate pipe	Partial
19	Ignition electrode fault	Reset boiler	No
20	Flame detection electrode fault	Reset boiler	No
21	Heat exchanger overheat	Check system circulation, let boiler cool	Partial
22	Water pressure sensor fault	Reset boiler	No
23	Flow rate too low	Check system for blockages	No
24	Diverter valve fault	Reset boiler	No
25	Communication error	Reset boiler, check thermostat wiring	No

Locate the reset button on the front control panel
Press and hold for 3 seconds
Wait for the error code to clear and the boiler to restart
If the fault returns after 3 resets, do not keep trying - call a Gas Safe engineer