Slant/Fin VGH-80-CH User's Information Manual page 24

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