Check list in case of faults
If you are unable to correct the fault, please
call either the installation engineer or the Hoval
Customer Services.
Fault
Check/Cause
Solution
See page
Oil burner
-
Is electrical power available
-
check out fuses/circuit breakers. Switch on the main
is not
emergency switch or plug in to the power supply
working
-
is the fault lamp lit?
- press the fault reset button
- notify the oil-burner service
15
-
check the oil level
-
top up with oil
46
-
is the burner plug plugged in?
-
plug in
-
has the temperature limiter
-
undo the locking nut and unlock
been triggered?
by pressing the button
Radiators do
-
are the slides in the heating feed
-
open them
not heat up
and return open?
-
is the ON/OFF switch at
-
switch over
15
position “0”?
-
are the switching times set?
-
see page
23
-
check water level and pressure
-
top up the heating system and vent out the air
47
-
are the radiator valves open?
-
open them
-
the heater circulating pump is not working
-
unlock the locking screw;
powerfully turn the end of the shaft with a
screwdriver until resistance subsides
-
mixer valve does not open automatically
-
switch the mixer valve over to manual operation
;
and open by hand; call Customer Services
No
-
the charging pump is not working
-
unlock the locking screw;
hot water
powerfully turn the end of the shaft with a
screwdriver until resistance subsides
-
is there air in the charging circuit?
-
if necessary, vent air from the circuit by hand
- operate the automatic air-ventilator by hand
-
has the temperature limiter
- undo the locking nut and unlock
been triggered?
-
by pressing the button
Please note!
In case of faults in operation, please carry out
checks in accordance with the above check-
list.
Please also observe the settings of the boiler
control elements shown on the corresponding
pages.
9.
Check list in case of faults
49
4 204 075 / 02
