14
warmhaus.com
Error
Code
Description of the
Error
Malfunction
Probable Cause
Solution(s)
E 01
Intervention of
exhaust Thermostat
Boiler does not
work, E01 error
code flashing on
the screen
> Flue Sensor faulty 1) Reset & Restart boiler
2) Call for authorised service
E 02
Low water pressure
in the system/
system parameter
wrongly setted
Boiler does not
work, E02 error
code flashing on
the screen
> Water pressure in
the boiler too low
1) Fill the boiler 1,2-1,5 bar according to
manual
2) Check if the system pressure 1,2 - 1,5 bar
from the LCD Screen
3) Reset & Restart boiler
4) If problem persist Call for authorised
service
E 03
High water pressure
in the system
Boiler does not
work, E03 error
code flashing on
the screen
> High Water
pressure in the
boiler ( > 2,8 bar )
1) First check the filling tap of the boiler
and make sure it is closed.
2) During boiler operation, the safety valve
may continue to drain water so make sure
that it is connected to a drain line.
3) If your plumbing line has a drain cock;
first turn the boiler off and let the pressure
drop to 1-1.5 bar, then switch it on again.
4) If the pressure increase occurs again,
call an authorised service.
E 04
Domestic hot water
temperature sensor
faulty
Boiler does not
work in DHW mode
but still operational
in Central heating
mode, E04 error
code flashing on
the screen
> Domestic heating
water temperature
sensor faulty
1) Call for authorised service
E 05
Central heating
FLOW temperature
sensor faulty
Boiler does not
work, E05 error
code flashing on
the screen
> Central heating
FLOW temperature
sensor faulty
1) Reset & Restart the boiler
2) Call for authorised service if problem
persists
E 06
No ignition
Boiler does not
work, E06 error
code flashing on
the screen
> Gas supply failure 1) Reset & Restart the boiler
2) Check boiler central heating valves are
open if they are closed open all
3) Check all radiator valves are open if
they are closed. Minimum 3 meters of
radiator must be open
4) RESET boiler and check if problem is
resolved.
5) Call for authorised service
E 07
Safety thermostat
intervention
Boiler does not
work, E07 error
code flashing on
the screen
> Lack of water in
the system
> Pump blockage
> Pump failure
> Pump harness
> Installation
blockage
1) RESET boiler check if problem is
resolved
2) Check boiler central heating valves are
open if they are closed open all
3) Check all radiator valves are open if
they are closed. Minimum 3 meters of
radiator must be open
4) RESET boiler and check if problem is
resolved
5) Call for authorised service
2.5. TROUBLESHOOTING
