18
REMKO HTL 200-EC/250-EC
Troubleshooting
Supply air fan does not start
1. Check whether switching relay
K1 is engaged.
2. Check if the fan blade rotates
freely and runs smoothly.
3. Check the mains fuses F1-F3
in the control cabinet.
4. Check the electrical cable
in the fan for damage.
5. Use appropriate means to check
that the temperature controller
(TR) is functioning properly.
The unit does not start
1. Check power supply.
2. Move the operating switch
to the “1” (Heating) position.
3. Check if the strapping
connector or the room
thermostat plug, if fitted,
is seated properly and making
good contact.
4. Check the setting of the room
thermostat.
The temperature set must be
higher than the current room
temperature.
5. Check whether the safety
temperature limiter (STB) has
tripped.
6. Before resetting the STB, ensure
that the causes have been
analysed and rectified.
The following causes are
possible:
- The unit was not able to cool
down because the electrical
connection was interrupted.
- The outlet temperature is
too high due to incorrectly
implemented air ducting when
operating with hoses.
- Air inlets or outlets are not free
or are inadequate.
7. Move the operating switch
to the “2” (Fan) 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 all of
the stopcocks for the oil supply
are 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 supply for
damage and potential leaks.
6. Check the probes and capillary
tubes on the triple-function
combination controller for
damage
(see description
in “Safety equipment”)
7. Check whether the fault
indicator light “Burner fault”
is illuminated; if so, reset the
burner.
8. Check the forced-air burner for
possible damage to the nozzles,
baffle plate, filter etc.
ATTENTION
Repair and maintenance
work on the burner and
the electrical installation must
be performed exclusively by
authorised specialists for safety
reasons.
Before undertaking any work
on the units, the power
plug must be removed from
the mains socket.
CAUTION
ATTENTION
If the forced-air burner carries
out a fault shutdown during
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!
