Electronic Burner Control(Models 625 And 627 Only) - Westinghouse PSP632 User Manual

ELECTRONIC bURNER CONTROL
(models 625 and 627 only)
Your gas oven is fitted with an electronic controller which
manages the operation of the burner and monitors the
flame. This controller includes features which ensure the safe
operation of your appliance and will prevent the build up of
unburnt gas, should a fault occur.
It is normal for the flame to turn on and off during cooking,
to maintain a stable temperature in the oven. The Thermostat
Indicator Light indicates when the flame is on or igniting
(indicator glows), or when the flame is off (indicator off).
The burner flame can be seen by viewing through the 2 holes
in the front of the burner cover.
IGNITION AND RESpONSE TO IGNITION FAILURE
The controller will attempt to ignite the flame when an oven
function is selected and the Thermostat turns on (indicator
light changes from off to on). The controller will make up to
2 attempts to ignite the flame, stopping if a flame is detected
by the controller. If by the end of the 2 attempts a flame is not
detected then the burner and ignition will be turned off and
a delay of 90 seconds will be observed. During this delay
the controller will not respond to the Function and Thermostat
controls.
At the end of this delay, switch the Thermostat or Function
Selector off and leave off for at least 5 seconds. Then switch
the Thermostat and Function Selector on again to re-attempt
ignition.
If the oven controls are left on when the delay ends then
ignition will not be attempted until the Thermostat or Function
Selector is first turned off for 5 seconds.
RESpONSE TO FLAME FAILURE
If the controller cannot detect flame due to a fault, then the
controller will respond
• firstly by attempting to re-light the burner with a sequence
of up to 3 attempts and
• If the re-lighting sequence is not successful the burner will
be shut off.
The re-lighting sequence will include up to 3 attempts to
re-light the burner, stopping if a flame is detected by the
controller. If by the end of the re-lighting sequence a flame
is not detected then the burner and ignition will be turned
off and a delay of 90 seconds will be observed. During
this delay the controller will not respond to the Function and
Thermostat controls.
At the end of this delay, switch the Thermostat or Function
Selector off and leave it off for at least 5 seconds. Then
switch the thermostat and Function Selector on again to re-
attempt ignition.
If the oven controls are left on when the delay ends then
ignition will not be attempted until the Thermostat or Function
Selector is first turned off for 5 seconds.
RECOGNISING A SAFETY SHUT-DOwN CONDITION
During normal cooking the Thermostat indicator light is on
when the burner flame is igniting or on, and the Thermostat
indicator light is off when the flame is off.
If an oven function is selected and the Thermostat light is
on, but the flame is not on or attempting to ignite then the
controller has invoked a safety shutdown of the burner. A
90 second delay is observed from the time the shut-down
occurred before the controller will respond to the oven
controls.
Once the delay period has ended the Thermostat or Function
Selector must be turned off for at least 5 seconds before oven
functions can resume.
pOwER FAILURE
In the event of an interruption to mains power, the restoration
of power will not cause the burner to ignite if the controls
were left on. However the grill element will resume heating
on models which do not have an electronic clock.
To resume operation of the appliance after a power
interruption:
• First turn the Function Selector or Thermostat controls to the
off position. The controls must remain in this position for at
least 5 seconds
• If the appliance has an electronic clock then set the time
of day on the electronic clock. Normal operation of the
appliance may now resume.