Warmhaus EWA 28, Инструкция по установке и эксплуатации

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34
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Error
Code
Description of the Error Malfunction Probable Cause Solution(s)
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 page 92
if gas valve coils out of tolerance, then replace gas valve, and Perform
Au-To calibration according to page 76 or 77
Attention: Only authorised service must perform Au-To calibration
E 88 Fault of electronic gas
valve managing circuit
Boiler does not work,
E88 error code flashing on
the screen
> Cabeling disconnections
> Gas valve failiure
1-) Call for authorised service at first
E 89
Problem on combustion
feedback signal Boiler does not work,
E89 error code flashing on
the screen > 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
E 90 Unable to regulate
combustion
Boiler does not work,
E90 error code flashing
on the screen
> 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
E 92
Air compensation active Boiler does not work,
E91 error code flashing
on the screen > Possible wind precence
> Aging or rust on the electrode
> Recirculation on fluegas path
> Blokage on flue or wrong flue
> Electrode position
> Combustion calibration
> Min power adjustment
1-) Call for authorised service at first
E 93
Unable to regulate
combustion (temporarily) Boiler does not work,
E93 error code flashing
on the screen > Aging or rust on the electrode
> Recirculation on fluegas path
> Blokage on flue or wrong flue
> Electrode position
> Combustion calibration
> Gas valve failiure
> Electronic board
1-) Call for authorised service at first
E 94 Possible low gas pressure
or exhaust recirculation Boiler does not work,
E94 error code flashing
on the screen > Gas inlet pressure LOW
> Recirculation on fluegas path
> Blokage on flue or wrong flue
> Aging or rust on the electrode
> Electrode position
> Combustion calibration
> Gas valve failiure
> Electronic board
1-) Call for authorised service at first
2-) Check wrong flue OR flue gas blockage
3-) Check recirculation ( flue gas leak ) from flue gas path to fresh air
side, check flue gas sealings specially
4-) Check any problems on the ionisation electrode, (like condensation,
rust etc.), and control poistioning of the electrode, if electrode poistion
wrong calibrate electrode according to user manual page 118 or 119
5-) Check combustion CO2 or O2 values on HI and LO mode at sweeper
mode according to direction of manual page 67- 70
6-) Perform Auto Calibration according to page 76 or 77
7-) if not successfull replace gas valve, and Perform Au-To calibration
according to page 76 or 77
8-) 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 according
to page 76 or 77
Attention:
Only authorised service must perform Au-To calibration
E 95 Intermittent combustion
value
Boiler does not work,
E95 error code flashing
on the screen
> Harness on electrode and earth
> Aging or rust on the electrode
> Electrode position
> Combustion calibration
1-) Call for authorised service at first
E 96 Flue or air suction way
blockage Boiler does not work,
E96 error code flashing
on the screen > Blokage on flue
> Blokage on air suction path 1-) Call for authorised service at first
E 98
SW error, board start-up
error fault
Boiler does not work,
E98 error code flashing
on the screen
> Boiler software problem 1-) Call for authorised service at first
E 99 Generic fault Boiler does not work,
E99 error code flashing
on the screen > Boiler electronic hardware
problem 1-) Reset & Restart boiler
2-) Call for authorised service at first
flas-
hing
LCD
Half Power mode on
Lawa/ Lawa Plus models Boiler continue to work,
flashing screen boiler
still operational > Recirculation on fluegas path
> Blokage on flue or wrong flue
> Combustion calibration
> Temporary wind precence 1-) If there is strong wind (ie.wind storm) wait until the wind storm stop
then keep using the boiler as it is 36 or 48 hours boiler try to remove
half power mode by it self automatically by increasing power gradually.
2-) IF problem persist after 48 hours Call for authorised service
(1) Call the Authorized Service if failure continues.
(2) 81 numbered failure corresponds any blocking in the exhaust gas pipe. In such case, you should consult the authorized service technician before re-starting the combi.