Eco-King HWB-299, Installation And Service Manual

Page: 88 / 124

E93.1801EN171 HWB installation manual 88
Lockout codes
Lock-
out
code Error Description Cause Solving
0 E2PROM_READ
_ERROR Internal software error wrongly programmed
BCU or PB reset BCU or replace BCU
and or display unit
1 IGNIT_ERROR Five unsuccessful igni-
tion attempts in a row no gas, wrongly ad-
justed gas valve check gas supply and ad-
just gas valve, reset BCU
2 GV_RELAY_
ERROR Failure detected in the
gas valve relay short circuit in coil of
the gas valve, water
on wiring or gas valve reset BCU replace gas valve
or wiring harness
3 SAFETY_RE-
LAY_ERROR Failure detected in
safety relay safety relay is not
working correctly reset BCU or replace BCU
4 BLOCKING_
TOO_LONG Control had a blocking
error for more than 20
hours blocking code active
for more than 20 hours reset and check blocking
code
5 FAN_ERROR_
NOT_RUNNING Fan is not running for
more than 60 seconds electrical wiring not
correctly connected, or
Fan is malfunctioning Check wiring or replace Fan
if not solved check fuse on
BCU or replace BCU
6 FAN_ERROR_
TOO_SLOW Fan runs too slow for
more than 60 seconds electrical wiring not
correctly connected, or
Fan is malfunctioning Check wiring or replace Fan
if not solved check fuse on
BCU or replace BCU
7 FAN_ERROR_
TOO_FAST Fan runs too fast for
more than 60 seconds electrical wiring not
correctly connected, or
Fan is malfunctioning Check wiring or replace Fan
if not solved check fuse on
BCU or replace BCU
8 RAM_ERROR Internal software error wrongly programmed
BCU or PB reset BCU or replace BCU
and or display unit
9 WRONG_EEPR
OM_SIGNA-
TURE Contents of E2prom is
not up to date outdated E2prom reset BCU or replace BCU
10 E2PROM_
ERROR Wrong safety parame-
ters in E2prom wrongly programmed
BCU or PB reset BCU or replace BCU
11 STATE_ERROR Internal software error wrongly programmed
BCU or PB reset BCU or replace BCU
12 ROM_ERROR Internal software error wrongly programmed
BCU or PB reset BCU or replace BCU
13 APS_NOT_
OPEN Air pressure switch not
opening during pre-
purge 0 electrical circuit is
short circuited, or APS
is jammed check wiring or replace APS
14 APS_NOT_CLO
SED_IN_PRE_
PURGE Air pressure switch not
closing during pre-
purge 1 no air transport to the
burner; flue or air inlet
is blocked, or APS is
jammed or air signal
hose not connected to
the air intake pipe or
water in hose
Check if there are any ob-
structions in the flue or air in-
take, replace APS if jammed,
connect air hose to the air in-
take pipe, remove any water
from the hose.
15 MAX_TEMP_
ERROR The external overheat
protection is enabled
or the T_Supply sen-
sor measures a temp.
of over Prot_Over-
heat_Temp - SGOver-
heat_Duplex_Toler-
ance for a period of
Max_Value_Period Burner door clixon
tripped because of
overheating of the
burner door or the wa-
ter flow is restricted, or
back wall thermal fuse
has tripped because
rear wall insulation
disc (combustion
chamber)
is damaged
or
broken.
Check burner door gasket
and replace burner door gas-
ket and reset clixon on
burner door or check pump
and waterflow and replace
pump or increase water flow
check also if valves are
closed or check if rear wall
fuse is broken if so replace
and also replace rear wall in-
sulation disc (combustion
chamber).