24
E95.1901EN032 User manual Slant Fin VGH-CH / CO
Lock
out
code
Error
Description
Cause
Solving
too many filing
attempts
also check expansion
vessel on internal leak
28
FILL_TIME_
ERROR
Filling takes too long
if output is
programmed as filing
valve and filling takes
more than 10
minutes
Check if there is a leak in
the central heating system
or if the boiler is leaking
also check expansion
vessel on internal leak
29
PSM_ERROR
Internal software error
wrongly programmed
BCU or PB
If the boiler does not start
after Reset, contact your
installer
30
REGISTER_
ERROR
Internal software error
wrongly programmed
BCU or PB
If the boiler does not start
after Reset, contact your
installer
32
T_EXCHANGE_
DIFF_ERROR
The 2 exchange sensors
deviate too much for more
than 60 seconds
there is not enough
water flow through
the heat exchanger
If the boiler does not start
after Reset, contact your
installer
33
LWCO_1_
ERROR
Low water cut off 1 error
there is no water in
the heat exchanger
or not electrically
connected
If the boiler does not start
after Reset, contact your
installer
34
LWCO_2_
ERROR
Low water cut off 2 error
there is no water in
the heat exchanger
or not electrically
connected
If the boiler does not start
after Reset, contact your
installer
35
APS_NOT_
CLOSED_IN_
POST_PURGE
Air pressure switch not
closing during post-purge
1
no air transport to the
burner after heat
demand; 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
If the boiler does not start
after Reset, contact your
installer
Table 5.2
Содержание VGH-100-CH
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