E.C.A. Proteus Plus - Page 31

Table 11
CC: When the power supply is switched On
“
” showed on LCD display means Outside temp.
Sensor correctly disconnected and the function enabled.
OC: When the power supply is switched On “
” showed on LCD display means Outside temp.
Sensor correctly connected and the function enabled.
30
Fault/Error
Caus e
Sol u tion
1- The boiler does not start up
by turning Status to “winter or
summer” position.
- Lack of electricity.
-Check the electricity connections.
2- Flame failure lockout:
When turning the Status to
“winter or summer position, F4
error code appears on LCD and
error (red) led turns ON by
flashing to indicate the lockout
position
(F4)
- No flame in burner after 3 ignition
trials.
- Turn the Status Konb (P1) to Off/Reset
position and waith for 5 seconds. - If the
lockout condition continues after the reset,
check the gas inlet and supply valves.
- Having all tries expired, consult qualified
service.
3- CH NTC error:
F3 error code appears on LCD
and error (red) led turns ON by
flashing to indicate the lockout
position (F3)
- CH sensor is out of operating
range and this condition lasted for
more than 10 seconds.
- Check the CH inlet valve and radiator valves
whether it is open or not.
- The system stays in blocking condition until
CH sensor is in operating range. If repeated,
consult qualified service.
4- DHW NTC error:
F2 error code appears on LCD
and error (red) led turns ON by
flashing to indicate the lockout
position (F2)
- DHW sensor is out of operating
range and this condition lasted for
more than 10 seconds.
- Check the CH inlet valve and radiator valves
whether it is open or not.
- The system stays in blocking condition until
DHW sensor is in operating range. If repeated,
consult qualified service.
5- High limit lockout:
F1 error code appears on LCD
and error (red) led turns ON by
flashing to indicate the lockout
position (F1)
- If limit thermostat is open, error
will be generated.
- Check the flue connections / chimney.
- Reset the boiler, turn the Status (P1) to Off-
Reset position and waith for 5 seconds.- If the
lockout condition continues after the reset,
consult qualified service.
6- APS Error:
F5 error code appears on LCD
and error (red) led turns ON by
flashing to indicate the lockout
position (F5)
- Insufficient flue draught.
- Check the flue connections.
- Reset the boiler, turn the Status Potentiometer
(P1) to Off-Reset position and waith for 5
seconds.- If the lockout condition continues
after the reset, consult qualified service.
7- Low water pressure:
F7 error code appears on LCD
and error (red) led turns ON by
flashing to indicate the lockout
position (F7)
- Operating water pressure is not
suitable for your appliance.
- The system stays in blocking condition until
water pressure is back to nominal value. -
Check the valves whether is open or not.
- Check circuits for leaks.
8- Low voltage :
F8 error code appears on LCD
and error (red) led turns ON by
flashing to indicate the lockout
position (F8)
- The main voltage is not suitable
for your appliance.
- The system stays in blocking condition until
main voltage is back to nominal value. -
9- OTC Exthernal Probe Fault:
F6 error code appears on LCD
(F6)
- Check to the OTC terminal
connections and cabels.
- The Boiler can work without OTC (outside
temp. Sensor)
- Consult qualified service for the solution.