Resol DeltaTherm HT, Manual For The Specialised Craftsman

Page: 26 / 32

26
en
Installation
Commissioning
Settings
Data comm
unication
Tr
oubleshooting
The display is permanently off.
Press the right button (
✓
)
. Display illuminated?
no
yes
Controller has been in
standby, everything o.k.
Check the supply line and reconnect
it. The fuse of the controller could be
blown. The fuse holder (which holds
the spare fuse) becomes accessible
when the cover is removed.The fuse
can then be replaced.
Check the power supply of the controller. Is it
disconnected?
no yes
WARNING! Electric shock!
Upon opening the housing, live parts are exposed!
Î Always disconnect the device from power supply be-
fore opening the housing!
The controller is protected by a fuse. The fuse holder (which also holds the spare
fuse) becomes accessible when the cover is removed. To replace the fuse, pull the
fuse holder from the base.
Is the pump current enabled by the
controller?
Display illuminated?
If not, press the right button (
✓
).
Display illuminated again?
Does the pump start up in manual
operation?
The heating circuit pump does not work, although this is indicated on the
display.
yes
no
yes
There is no current; check fuses / re-
place them and check power supply.
The adjusted temperature differ-
ence for starting the pump is too
high; choose a value which makes
more sense.
no
yes
no
Controller might be defective -
replace it.
Is the pump stuck?
Turn the pump shaft using a screw-
driver; now passable?
Pump is defective - replace it.
yes
no