6
ALWAYS ENSURE THAT THE MAIN
EXTERNAL ELECTRICITY SUPPLY IS
SWITCHED OFF BEFORE COMMENCING ANY
MAINTENANCE ON THIS HEATER.
To obtain the best results from the heater, it is
essential to avoid the accumulation of dust and
dirt within the unit on the air inlet and discharge
grilles. For this reason regular cleaning is
necessary.
Cleaning of the fan is best carried out with a soft
brush.
The product should be serviced annually.
Servicing shall be undertaken by a competent
person.
6.2 General
If the heater does not operate a competent service
engineer should be called to identify the nature of
the fault.
All heaters are fitted with motor thermal protection.
Other faults in relation to the element, motor and
wiring should be identified using conventional fault
finding techniques.
In the event that electrical components are
replaced, please ensure that electrical safety
checks in accordance with the regulations in force
in the country of use are undertaken.
6.3 Thermal cut-out
The units are protected from overheating in the
event of fan failure or an obstruction of the free
airflow, by thermal cut outs. If this happens the
thermal cut outs switch off the appliance. The ap-
pliance will not operate until the heater is discon-
nected from the mains supply and it has cooled
down.
If this fault re-occurs again, refer to the section
‘6.4 fault finding’.
6.1 Maintenance
6.4 Fault Finding
If the heater will not operate, disconnect it from
the mains and arrange for a certified electrician to
attend and investigate the reason.
6.5 Replacing the Fan Heater
a) Split and remove shroud
b) Remove the grille.
c) Disconnect the internal wiring from the blower
d) Remove the four screws fixing the fan heater
assembly to the back of the case.
e) The fan heater assembly can now be eased
forward and removed from the heater case.
f) Fit replacement fan heater and reassemble in
reverse order.
6.6 Spares
It is essential when ordering spares or replace-
ment parts to state the model number and the
serial number on the rating label fixed to the side
of the unit below the terminal cover.
In the interest of progress the Company reserve
the right to vary specifications from time to time
without notice. The material listed is offered sub-
ject to the Company’s General Conditions of Sale,
a copy of which can be obtained on request.
6.
Servicing & Maintenance
