Sime Format System 25 HE, Installation And Servicing Instructions, Page: 29 / 32

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1.3 MINIMUM CLEARANCES
The following MINIMUM CLEARANCES must be available for
servicing the appliance:
1.4 ROUTINE SERVICING
To ensure continued efficient operation of the appliance, it is
recommended that it is checked and serviced as necessary
at regular intervals.
The frequency of servicing will depend upon the particular
installation conditions and usage but in general once a year
should be adequate. It is the law that any service work must
be carried out by a registerd person (C.O.R.G.I.).
1.5 GENERAL INFORMATION
1.5.1 Fault finding indicators (LEDS)
The appliance is fitted with a safety cut-out thermostat. In
the event of overheating this will interrupt the power supply
and prevent the appliance from functioning.
If this occurs, allow the appliance to cool, turn the rotary
switch to “
“ position and release it immediately, then turn
it back to the previous position (see fig. 2).
If the cut-out condition is repeated, turn off the electrical sup-
ply and consult your installer or service engineer.
1.5.2 Temperature/pressure gauge
The gauge (A fig. 1) on the facia panel indicates the approxi-
mate system pressure. If the normal running pressure is
seen to decrease over a period of time there is a water leak
and you should consult your installer or service engineer.
1.5.3 Electrical supply
The mains plug used must be a 3 pin type to BS1363, and
fused at 3 A. THIS APPLIANCE MUST BE EARTHED.
NOTE: an interruption in the electricity supply whilst the
burner is alight may cause the overheat thermostat to
operate. If this is suspected, turn the rotary switch to “
“
position and release it immediately, then turn it back to
the previous position.
TO CONNECT A PLUG
As the colour of wires in the mains lead of this appliance may
For ventilation For servicing
ABOVE THE APPLIANCE CASING 200 mm 300 mm
AT THE R.H.S. 15 mm 15 mm
AT THE L.H.S. 15 mm 15 mm
BELOW THE APPLIANCE CASING 200 mm 200 mm
IN FRONT OF THE APPLIANCE 350 mm 500 mm
Fig. 2
Bi-colour led 1
Bi-colour led 2
Operating mode Bi-colour led 1 Bi-colour led 2
Stand-by green ON OFF
Flame presence green ON orange ON
Flame detection
circuit fault
green ON flashing orange
Ignition lock OFF red ON
Water flow switch (FL)
or limit stat (TL)
flashing orange OFF
intervention
Fan fault
flashing green OFF
C.H. sensor (SM)
fault
steady orange OFF
Boiler off OFF OFF