Table of Contents
Advertisement
T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g
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.
Correct as needed
Check opera on
Check burner alignment
Correct as needed
Check opera on
YES
110
04 Fault Code
Flame Rollout
Is LP gas being
used?
NO
Disconnect electrical
power to furnace
Is flue piping
YES
restricted?
NO
Check flue pipe for correct sizing
and long horizontal runs or slope
less than ¼" per linear foot.
Correct as needed
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
NO
ignite within 4
seconds?
YES
Are flames from
burners impinging on
sides of heat
exchanger?
Is the burner orifice size
YES
56? Or matched to
this document for LP?
YES
Are all burner flames directed
into heat exchanger with a
ght pa ern? (inadequately
aired burners tend to roll
back)
NO
NO
When fan comes
on, do flames
stay consistent?
YES
Replace Roll out
switch
Check opera on
Install correct size
NO
orifices
Check opera on
Check combus on air
blower, ven ng, heat
YES
exchanger for blockage
(i.e. soo ng)
Replace heat
NO
exchanger
Check opera on
A952V-SVX001-1B-EN
Advertisement
Table of Contents
