Nefit boiler faults: fault codes, causes and parts (page 5 of 5)

Codes 601 to 619 of the 619 fault codes for Nefit. Looking for a specific code? Use the search on the first page.

Nefit boiler fault codes 601 to 619 of 619

The code list is split over 5 pages. Looking for a specific code? Use the search on the first page: it searches all 619 codes in one go.

Code	Cause
H07	Service code: The water pressure in the central heating system is too low (lower than 0.8 bar)
H11	The outlet or cold water temperature sensor is faulty. The function is taken over by the boiler software.
H11	Service code
H11	The domestic hot water outlet temperature sensor is defective. Its function is taken over by the boiler software.
H12	The cylinder temperature sensor is defective. Its function is taken over by the boiler software.
H13	The set service interval has elapsed. Service required.
H13	Service interval is set.
H13	The set service interval has elapsed. Service required.
H201	The boiler is in manual mode
H25	The contacts of the pressure sensor are open circuit.
HrE	Operating code: Reset is being carried out.
Knipperende waterdruk	The measured central heating water pressure is too low. The output for both central heating and domestic hot water mode is limited.
L 99	Set required output %
P1.6	Current system pressure of the central heating system
P1.6	Current system pressure of the central heating system
P_ _	Operating phase: The water pressure in the central heating system is too high.
P__	Operating phase: The water pressure in the central heating system is too high.
rE	Operating code: Reset is being carried out.
re 604	The boiler is being reset