14
Malfunction and remedy
Warning !
All work on the electrical installation must be carried
out by a qualified electrician.
Pull power supply plug only when the heater has cooled down
See also operating instructions for oil-/gasburner
Malfunction Possible
Cause Remedy
The space heater ist connected up, but :
The heater does not start, when
the
selector switch is set to heating
a) No electrical supply
b) Defective selector switch
c)
Oil-/gasburner indicates a
malfunction
d) Overheat thermostat is locked
e) Room thermostat falsely set
a) Check main switch and fuses
b) Replace selector switch
c) Reset oil-/gasburner if burner cuts
again, press reset button after 4 to
5 min.
See operating instruction for burner
d) Press reset button of overheat
thermostat
e) Check room thermostat setting
The space heater is connected up and
switched on:
The oil burner starts and
immediately indicates a
malfunction
a) No oil in the tank
b) Air in fuel circuit
c) Oil filter clogged
d) Stopcock
closed
e) Oil burner indicates a malfunction
again
a) Refill
oil
tank
b) Check screwed connections of fuel
circuit for leaks
c) Change filter element
d) Open
stopcock
e) See operating instructions oil burner
Overheat thermostat switches off
a) Defective temperature controller
a) Replace warm air thermostat
Temperature controller continually
switches off
a) Temperature controller wrongly set
b) Fan does not start
c)
Fuel flow rate too high
.
a) Check
temperature
controller
setting
b) Check fan motor or capacitor or
replace it if necessary, eventual
check motor protector switch and
belt drive.
c)
Adjust fuel flow rate to given value.
Signal lamp at control box is on
a) Burner indicates malfunction
a) See operation instruction burner
The space heater is connected up,
but :
The fan does not start, when
the selector switch is set to
Ventilation
a) No electrical supply
b) Defective
fan
c) Capacitor
defective
a) Check main switch and fuses
b) Replace
fan
c) Check
capacitor
The heater is connected at electric
supply but does not operate
a) No electrical supply
b) Fuse has interrupt
a) Check electrical supply
b) Replace fuses
