Warmhaus EWA 2525C, Инструкция по установке и обслуживанию

Страница: 60 / 68

60
warmhaus.co.uk
Error Code Description of the Error Malfunction Probable Cause Solution(s)
E 19
Water flow selection with
water flow meter input
reading
Lack of domestic heating
water on request Wrong parameters settled
on TsP menu
1-) Call for authorised service at first
2-) Only authorised service must adjust TsP Parameter P01=0 with
defalut value
E 20
CH Overtemperature,
Temperature Central
Heating > TSP 81 value °C Boiler does not work, E81
error code flashing on the
screen
> Lack of water on the
system
> Pump blockage
> Pump failiure
> Pump harness
> Installation blockage
1-) RESET boiler at first check if problem removed
2-) Check boiler central heating valves are open if they are closed
open of all
3-) Check all radiator valves are open if they are closed open of all
minimum 3 meters of radiator must be open
4-) RESET boiler and check if problem removed
5-) Call for authorised service at first
6-) Check Pump operation if the pump circuation through the heat
exchanger is enough
7-) Check intermittent contacts on harness carefully specially Pump
and PWM cable and speciallypump main supply connector and
specially pump main connector, measure voltage from connectors
8-) Check if there is air on the heat exchanger or system, remove air if
any to do that activate deareation mode.
9-) Check heat exchanger water path againts clogging
10-) Installation water path againts clogging
11-) Reset & Restart boiler
E 21
Delta Temperature Central
Heating flow and Return >
TSP 82 value °C Boiler does not work, E21
error code flashing on the
screen
> Lack of water on the
system
> Pump blockage
> Pump failiure
> Pump harness
> Installation blockage
1-) RESET boiler at first check if problem removed
2-) Check all radiator valves are open if they are closed open of all
minimum 3 meters of radiator must be open
3-) RESET boiler and check if problem removed
4-) Call for authorised service at first
5-) Check Pump operation if the pump circuation through the heat
exchanger is enough
6-) Check intermittent contacts on harness carefully specially Pump
and PWM cable and speciallypump main supply connector and
specially pump main connector, measure voltage from connectors
7-) Check if there is air on the heat exchanger or system, remove air if
any to do that activate deareation mode.
8-) Check heat exchanger water path againts clogging
9-) Installation water path againts clogging
10-) Reset & Restart boiler
E 28
Maximum allowed
consecutive lock-out reset
reached
Usable RESET number
reached.
Too many consecutive
lock-out failures (followed
by reset) due to other
possible causes
1-) Removing power supply reset will be allowed
2-) Check the root cause of Error code to solve
3-) If fault still persists call for authorised service
E 37 Low voltage anomaly
Boiler does not work, E37
error code flashing on the
screen
Low voltage < 165 VAC +/-
5% on the supply network
operation mode
OR
During Au-TO calibration
mode < 182 VAC +/- 5%
1-) Call for Electrical supply network provider
2-) Error will remove if supply voltage > 170 VAC +/- 5%
3-) If you seen seen this E37 during calibration calibration can not be
complete unless supply voltage > 188 VAC +/- 5%
E 40
Wrong network frequency
survey
Boiler does not work, E40
error code flashing on the
screen
Wrong frequency survey
out of tolererance 50 Hz
+/- 5% on the supply net
work
1-) Call for Electrical supply network provider
2-) Error will remove if supply frquency 50 Hz +/- 5%
E 41
Loose of flame more than
6 successive times
Boiler does not work, E41
error code flashing on the
screen
> Too many domestic heat
water request in short
period ( 1 min )
> Low gas pressure
1-) Call for authorised service at first
2-) Check intermittent contacts on harness carefully
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 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-) Check combustion CO
2
or O
2
values on HI and LO mode at
sweeper mode.
12-) Perform Au-To calibration.
13-) if not successfull. 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.
14-) if not successfull replace gas valve, and Perform Au-To calibration.
Attention: Only authorised service must perform Au-To calibration
E 42 Buttons anomaly
Boiler does not work, E42
error code flashing on the
screen
Wrong parameters settled
on TsP menu
1-) Call For service
2-) Service must adjust TsP Parameter P67 with defalut value
3-) Check button pads or swithches are functional
4-) if not successfull. 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.
Attention: Only authorised service must perform Au-To calibration