Ingersoll-Rand S9V2B040D3PSBC, Service Facts

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50 S9V2-SF-2A-EN
Disconnect electrical
power to furnace
Remove, clean, and
reassemble burners.
Push RED reset on
both rollout switches
Cycle power to
furnace and call for
heat
Igni!on occurs
Do all burners
ignite within 4
seconds?
Is LP gas being
used?
NO
Check burner alignment
Correct as needed
Check opera!on
Check flue pipe for correct sizing
and long horizontal runs or slope
less than ¼” per linear foot.
Correct as needed
NO
Is flue piping
restricted?
Correct as needed
Check opera!on
YES
Are flames from
burners impinging on
sides of heat
exchanger?
NO
YES
When fan comes
on, do flames
stay consistent?
Replace heat
exchanger
Check opera!on
NO
Replace Roll out
switch
Check opera!on
YES
DEFINITION
Limit switches are safety devices that will open
when an abnormal high temperature has been
sensed.
REMOVE ALL JUMPER WIRING TO SWITCHES!
Under no circumstances, shall these switches
be le$ jumpered when not troubleshoo!ng.
YES
Are all burner flames directed
into heat exchanger with a
!ght pa%ern? (inadequately
aired burners tend to roll
back)
NO
NO
Check combus!on air
blower, ven!ng, heat
exchanger for blockage
(i.e. soo!ng)
YES
04 Fault Code
Flame Rollout
Is the burner orifice size
56? Or matched to
Installers Guide for LP?
Install correct size
orifices
Check opera!on
YES
YES NO
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