ICP N9MP2125J20A1 - 10. Sequence of Operation & Diagnostics; Troubleshooting Codes and Causes

HONEYWELL SV9541M "SMART VALVE" Trouble shooting continued
LED
INDICATES CHECK/REPAIR
STATUS
SoftLockout.
6 Flashes +
3 Flashes
6 Flashes +
4 Flashes
7 Flashes
Last failure was pressure switch
Maximum recycle count exceeded
Combustion air blower is de-energized, Circulating blower is de-
energized after the "OFF" delay.
After 5-minute delay time, control system will reset and initiate a
new ignition sequence,
Soft Lockout.
Lastfailurewaslimitcircuitopenedduringrun.
Combustion air blower is de-energized, Circulating blower is
de-energized after the "OFF" delay.
After5-minute delaytime,controlsystemwill resetandinitiatea
newignitionsequence,
Soft Lockout.
Blowerfailure(typical)
Limittrip tooklongerthan2 minutesto reset.
Systemwillstart a new ignitionsequenceafter1 hour,if callfor
heatstill present.
Ignitionsystemcontrolswitchmustbein theONposition.
Pressureswitchesoperation,tubing,andwiring.
Restrictionsinfurnaceairintakeorventpiping.
Highwindsblowingagainstvent.
Mainlimitswitch.
Limitand rolloutswitchwiringisin goodconditionandsecurely
connected.
Restrictionin duct work.
Dirtyfilter
Deadblower.
Blockedductwork.
440 01 101004 [_