White Knight BG 43A, Installation And Service Instructions Manual

Page: 11 / 20

11
Chart 4.
Motor runs, gas ignites but stays on for only short period
Before proceeding, ensure polarity of 13 Amp supply socket and earthing is correct.
Is weight of load suitable?
Is filter clean? Is vent
hose or terminal
unobstructed? Is vent
terminal unaffected by
wind conditions that may
cause back pressure?
Is flame failure electrode
correctly positioned, and
undamaged? Is wire to
terminal 9 undamaged and
connections tight? Is rear
drum seal complete? Is rear
elbow and plinth attached
correctly?
Exchange full sequence
control and/or gas control
relay PCB and/or
thermostats as necessary
until gas stays on.
Machine operating.
Instruct user as necessary.
Yes
Yes
Yes
Start
Check gas pressure with all
other appliances in operation
does gas stay ON?
No
Yes
Rectify as necessary
does gas stay ON?
Yes
No
No
No