Warmhaus EWA 20, Руководство по установке, Страница: 32 / 38

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Error Code Description of the Error Malfunction Probable Cause Solution(s)
E 79
Min regulation current
value reached
Boiler does not work, E79
error code flashing on the
screen
> Gas inlet pressure
> Aging or rust on the
electrode
> Recirculation on fluegas
path
> Blokage on flue or wrong
flue
> Electrode position
> Cabeling disconnections
> Combustion calibration
> Electronic board
> Gas valve failiure
1-) Call for authorised service at first
2-) Check gas supply pressure must be 20-17 mbar. Gas pressure must
be in between on this values while boiler on operational
3-) Check combustion CO2 or O2 values on HI and LO mode at sweeper
mode.
4-) Check wrong flue OR flue gas blockage
5-) Check recirculation ( flue gas leak ) from flue gas path to fresh air
side, check flue gas sealings specially
6-) Check any problems on the ionisation electrode, (like condensation,
rust etc.), and control poistioning of the electrode, if electrode poistion
wrong calibrate electrode.
7-) Check if the heat exchanger coils clogged or not
8-) Check for condensation on the cabling AND/OR on board
9-) Check earth connection between board and electrode
10-) Check electrode cabeling between board and electrode
11-) Perform Auto Calibration.
12-) If fault still persists Replace board, but use original service key
from the board dismantled to keep original parameters and calibration
points. If original service key not used aslo adjust P15 releated to the
default value of boiler power and perform Au-To calibration.
13-) if not successfull replace gas valve, and Perform Au-To calibration.
Attention: Only authorised service must perform Au-To calibration
E 80
Problem on electronic gas
valve driver > Electronic board
> Gas valve failiure > Electronic board
> Gas valve failiure
1-) Call for authorised service at first
2-) Check gas valve cabeling between board and gas valve
3-) If fault still persists Replace board, but use original service key
from the board dismantled to keep original parameters and calibration
points. If original service key not used aslo adjust P15 releated to the
default value of boiler power and perform Au-To calibration.
4-) if not successfull replace gas valve, and Perform Au-To calibration.
Attention: Only authorised service must perform Au-To calibration
E 81
Lock-out for combustion
problem at starting (1)
Boiler does not work, E81
error code flashing on the
screen
> Strong flue blokage
> Combustion problem
> Wrong flue
> Gas inlet pressure
> Aging or rust on the
electrode
> Recirculation on fluegas
path
> Electrode position
> Combustion calibration
1-) Call for authorised service at first
2-) Check wrong flue OR strong flue gas blockage
3-) Check gas supply pressure must be 20-17 mBar. Gas pressure must
be in between on this values while boiler on operational
4-) Check recirculation ( flue gas leak ) from flue gas path to fresh air
side, check flue gas sealings specially
5-) Check any problems on the ionisation electrode, (like condensation,
rust etc.), and control poistioning of the electrode, if electrode poistion
wrong calibrate the electrode.
6-) Check combustion CO2 or O2 values on HI and LO mode at sweeper
mode.
7-) Perform Auto Calibration.
Attention: Only authorised service must perform Au-To calibration
E 82
Lock-out for combustion
problem on Lawa / Lawa
Plus models Boiler does not work, E82
error code flashing on the
screen
> Recirculation on fluegas
path
> Blokage on flue or wrong
flue
> Combustion calibration
1-) If there is strong wind (ie.wind storm) wait until the wind storm stop
then RESET the boiler
2-) IF problem persist Call for authorised service
3-) Check wrong flue OR flue gas blockage
4-) Check recirculation ( flue gas leak ) from flue gas path to fresh air
side, check flue gas sealings specially
5-) Activate service man menu and dis activate to remove half power
mode
6-) IF problem still persist then perform Auto Calibration.
Attention: Only authorised service must perform Au-To calibration
E 83
Temporary bad combustion
fault problem on Lawa /
Lawa Plus models Boiler does not work, E83
error code flashing on the
screen
> Recirculation on fluegas
path
> Blokage on flue or wrong
flue
> Combustion calibration
1-) If there is strong wind (ie.wind storm) wait until the wind storm stop
then RESET the boiler
2-) IF problem persist Call for authorised service
3-) Check wrong flue OR flue gas blockage
4-) Check recirculation ( flue gas leak ) from flue gas path to fresh air
side, check flue gas sealings specially
5-) Activate service man menu and dis activate to remove half power
mode
6-) IF problem still persist then perform Auto Calibration.
Attention: Only authorised service must perform Au-To calibration
E 84
Capacity reduction for
detected (supposed) low
gas inlet pressure Boiler does not work, E84
error code flashing on the
screen
> Gas inlet pressure
> Combustion problem
1-) If there is strong wind (ie.wind storm) wait until the wind storm stop
then RESET the boiler
2-) IF problem persist Call for authorised service
3-) Check gas supply pressure must be 20-17 mbar. Gas pressure must
be in between on this values while boiler on operational
4-) Check combustion CO2 or O2 values on HI and LO mode at sweeper
mode.
5-) Perform Auto Calibration, IF combustion values are out of tolerances
measured one step before
Attention: Only authorised service must perform Au-To calibration
E 87
Problem on electronic gas
valve circuit
Boiler does not work, E87
error code flashing on the
screen
> Cabeling disconnections
> Gas valve failiure
1-) Call for authorised service at first
2-) Check gas valve cabeling between board and gas valve
3-) Measure gas valve coil ressistances according to manual if gas
valve coils out of tolerance, then replace gas valve, and perform Au-To
calibration.
Attention: Only authorised service must perform Au-To calibration