Slant/Fin VGH-80-CH User's Information Manual page 26

Blocking Error
code
118 WD_COMM_
ERROR
119 RETURN_
OPEN
120 SUPPLY_
OPEN
122 DHW_OPEN
123 FLUE_OPEN
125 OUTDOOR_
OPEN
126 RETURN_
SHORTED
127 SUPPLY_
SHORTED
129 DHW_
SHORTED
130 FLUE_
SHORTED
132 OUTDOOR_
SHORTED
133 NET_FREQ_
ERROR
134 RESET_BUTTO
N_ ERROR
135 PHASE_NEUTR
AL_ REVERSED
136 T_EXCHANGE_
BLOCK_ERROR
155 WD_CONFIG_
ERROR
162 FILL_WARNING
26
Description
Watchdog communication
error
Return sensor open
Supply sensor open
DHW sensor open
Flue sensor open
Outdoor sensor open
Return sensor shorted
Supply sensor shorted
DHW sensor shorted
Flue sensor shorted
Outdoor sensor shorted
Net freq. error detected by
the watchdog
Too many resets in a short
time period
Live and neutral of the
main voltage power supply
input are reversed
Exchange temperature
exceeded 194 ºF (90 ºC).
Watchdog fan configuration
setting error
Error generated directly
when pressure drops
below Minimal_Pressure.
Demand has stopped, but
no error is to be stored at
this time.
E95.1901EN032 User manual Slant Fin VGH-CH / CO
Cause Solving
wrong If the boiler does not start
programmed BCU after Reset, contact your
or PB installer
malfunctioning If the boiler does not start
return sensor or after Reset, contact your
not connected installer
malfunctioning If the boiler does not start
supply sensor or after Reset, contact your
not connected installer
malfunctioning If the boiler does not start
DHW sensor or not after Reset, contact your
connected installer
malfunctioning flue If the boiler does not start
sensor or not after Reset, contact your
connected installer
malfunctioning If the boiler does not start
outdoor sensor or after Reset, contact your
not connected or installer
wrong CH-mode
programmed
malfunctioning If the boiler does not start
return sensor or after Reset, contact your
short circuiting installer
malfunctioning If the boiler does not start
supply sensor or after Reset, contact your
short circuiting installer
malfunctioning If the boiler does not start
DHW sensor or after Reset, contact your
short circuiting installer
malfunctioning flue If the boiler does not start
sensor or short after Reset, contact your
circuiting installer
malfunctioning If the boiler does not start
outdoor sensor or after Reset, contact your
short circuiting installer
wrong frequency If the boiler does not start
from power grid or after Reset, contact your
aggregate installer
reset too many Wait or disconnect and
times by user or reconnect power supply
installer
phase and neutral If the boiler does not start
are wrongly after Reset, contact your
connected installer
water temperature If the boiler does not start
is above 194 ºF after Reset, contact your
(90 ºC). installer
wrongly program- If the boiler does not start
med BCU or PB after Reset, contact your
installer
the water pressure Refill the system until the
is below the pressure is above 1 bar or
minimum pressure 14.5 psi
level