Specifications

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us*r**at#81
Troubleshooting
ln the
unlikely
event that
a
problem
occurs with
the ope-
ration
of the turboMAX
plus
or thermoCoMPACT
boiler,
the following
points
should
be checked:
l. Boiler
fails
to operate:
.
ls
the
gas
supply turned
on?
(see
page
5)
.
ls
the water
supply turned
on?
(see
page
5)
.
ls
there
enough water in
the
heating
system?
(see
page
5)
.
ls the
electrical
supply switched on?
.
ls the main
ON/OFF
control in
the
,,On"
position?
(switch
position
,,1")
(see
page
5)
.
ls
the burner
lock
out
indicator
light illuminated?
(see
page
6)
2. Hot
water
operates
but
no
central heating
(turboMAX
plus
only)
.
ls the heating
turned on?
(see
page
78).
.
Are
all external heating
controls
ON?
(see
page
8)
lf
your
boiler
still does not
operate then
please
consult
your
installer
or Vaillant
Service
Solutions
0870 6060 777.
Status
display
(For
maintenance
and service work
performed
by
your
installer
or service
agent)
The
status
displays are activated
by
pressing
the
,,i"
button
(1).
The current
status code. e.g.
,,S.34"
for
the
frost
protection
mode,
is shown on
the display
(2).
Pressing
the
,,i"
button again will switch
you
back to the
normal
mode. The
,,+"
and
,,-"
buttons will
only be used
by
your
installer or
service agent during service
and
maintenance
work.
Table
8.1:
Status display
(A
complete overview
of the status
codes can be found in
the
installation
instructions).
*
Heating
operation
**
Hot water
operation
(turboMAx
plus
only)
Fan
and
water
pump
over run
Anti
cycling
mode
(after
heating
operation)
E
oo
o
Fig.
8.16:
Status display
't0
lnstructions for
use turboMAX
plus,
thermoCOMPACT