15
The unit does not start
1. Check power supply.
2. Move the operating switch to
the "I" (Heating) position.
3. Check whether the
"Operation" indicator light on
the control panel is illuminated.
It must light up in the
"Heating" mode.
4. Check the strapping connector
or the room thermostat plug,
if fitted, is seated properly and
making good contact.
5. Check the setting of the room
thermostat.
The temperature set must be
higher than the current room
temperature.
6. Check whether the safety
temperature limiter (STB) has
tripped.
To do so, remove the protective
cap next to the control panel.
7. Before an STB reset ensure that
the causes have been analysed
and rectified.
The following causes are
possible:
Troubleshooting
The supply air fan does not
start
1. Check the fan can move freely.
2. Check the electrical cables on
the supply air fan for damage.
3. Check the operating condenser
of the fan.
It is located in the unit's
switching cabinet.
4. Use appropriate means to check
that the temperature controller
(TR) is functioning properly.
- The units were not able to cool
down because the electrical
connection was interrupted.
- Too high an outlet temperature
due to incorrectly implemented
air ducting when operating with
hoses.
- Air inlets or outlets are not free
or are inadequate.
8. Check whether the "Burner
fault" indicator light on the
control panel is illuminated. If
this is the case, then reset the
automatic burner.
9. Move the operating switch to
the "II" (Ventilate) position.
If the supply air fan now starts
up the fault may well be in the
burner area.
Forced-air burner and power
supply
1. Check the oil filter(s) for
contamination. Replace
contaminated oil filter(s).
2. Check whether the shut-off
cock on the oil filter is open.
3. Check the fuel tank for
sufficient fuel level.
4. Check the heating oil for
paraffin separation.
Possible even from 5 °C!
5. Check the oil hoses for damage.
6. Check the safety devices'
capillary tubes and probes for
damage or contamination.
7. Use appropriate means to check
that the temperature monitor
(TW) is functioning properly.
8. Check the forced-air burner for
possible damage to the nozzles,
baffle plate, filter etc.
NOTE
The indicator light only indicates
the "Heating" mode. There is
no display in the "Ventilate"
operating mode or with the room
thermostat switched off and
when the STB has been triggered.
CAUTION
An electrical safety check must
be carried out in accordance
with VDE 0701 after any work
on the units.
CAUTION
Before undertaking any work
on the units, the power plug
must be removed from the
mains socket.
CAUTION
If the burner should carry out
a fault shut-down once again
after the start phase, then
another reset should be carried
out after a waiting period of 5
minutes has passed.
Further reset procedures must
be prohibited as there is a
danger of deflagration.
CAUTION
Repair work on the electrical
installation and on the burner
must be performed exclusively
by authorised specialists for
safety reasons.
!
!
!
!
To Next Page
Loading...
Need help?
General
