The Q900GRF DO double oven & grill unit
uses a built in micro-computer to control the
oven temperature. The computer also
indicates when the ovens are ready for
use, and oversees the gas supply, fan
operation and ignition sequence ensuring
that these are operating safely.
Should the micro-computer find any fault in
the systems under its control, it will either;
-
stop the ignition and gas valve
operation or;
-
if the cooker is already in use it will
shut down the operation until the fault
is rectified.
The cooling fan will, however, continue to
run on for a while, and the oven lights
remain on.
Electrical interference either from the mains
or other electrical equipment may cause
the micro-computer to indicate a fault when
non exists, chiefly when first turning on.
It may be necessary to reset the micro-
computer (by turning the electricity supply
off at the mains plug) when first bringing
the appliance into operation.
Opening oven doors whilst the micro-
computer is running through it’s checks
may cause it to lock out.
In the event of a power cut
1. Switch off the appliance at the socket.
2. When the power returns, see the
‘Programmer / Clock section to ‘Set the
time of day’.
In the event of the gas supply being
disconnected
it may be necessary to
make several lighting attempts before gas
reaches the appliance.
15
Lamp signal
Cause
Action
Steady green
Selected oven / grill
None - normal operation.
has reached required
temperature.
Green lamp & red indicator Soft lockout.
Reset - turn control knob off / on.
dial of main oven cavity
flash.
Green lamp & red indicator
Hard lockout.
Reset - turn off / on at mains. If
dial for both ovens flash
(possible interference)
recurring, a service visit may be
alternately left / right.
required.
Green lamp & red indicator
Fault on micro-computer
Service visit required.
dial for both ovens flash
together.
MICRO-COMPUTER OPERATION
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