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EC Plus-4 Series B-Vent
®
Part No. XG0303C
Maintenance
HONEYWELL SV 9500 /SV9600
Troubleshooting Sequence
NOTE:
Before Troubleshooting, Familiarize Yourself With
The Startup And Checkout Procedure.
· TurnGasSupplyoff
· Setthermostatto
call forheat
SV9500/SV9600
ispowered
(24VACnominal)
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
START
Igniterwarmsup
andglowsred.
PilotValveopens.
Turngason.
PilotBurnerlights?
MainValveopens?
SYSTEMOK
UnplugPilotBurnerCable,
MeasureVoltageat
SV9500/SV9600HSI
Terminals(24VAC
Nominal, SeeINSET)
ReplaceIgniter/
FlameRodAssembly.
ReplaceIgniter/
FlameRodAssembly.
ReplaceSV9500/SV9600
MeasureVoltagetoSV9500
/SV9600. Voltagemust
beatleast19.5VAC
DiscardoldIgniter/
FlameRodAssembly.
ReplaceIgniter/Flame
RodAssemblyandretain.
RestartTroubleshooting
Sequence. Doesmain
valveopen?
Replace
SV9500/
SV9600
Check
Transformer
LineVolt
Supply
Replace
SV9500/
SV9600.
Saveold
Igniter/Flame
RodAssembly
forservice.
INSET
HSI
Terminals
CHECK:
· Linevoltagepower
· Lowvoltage transformer
· LimitController
· Thermostat
· Wiring
· Airprovingswitchon
combustionairblowersystem
· Ventdamper(ifused) isopen
andendswitchmade
Troubleshooting
If.your.fireplace.still.does.not.operate.correctly,.consult.your.dealer.or.
the.manufacturer.
All service and repairs should be performed by a qualified
agency.
All.spare.parts,.optional.fans.(see.optional.fan.instruction.guide),.and.
optional.trim.finishes.are.available.from.the.manufacturer.or.your.local.
dealer.
Troubleshooting
The.following.is.a.troubleshooting.chart.of.possible.problems:
PROBLEM
CORRECTIVE ACTION
. Noisy.Pilot.Flame.
Remove.pilot.adjuster.cap,.located.
on.the.gas.control.valve..Flame.is.de-
creased.by.turning.adjustment.screw.
clockwise.
. Pilot.won’t.ignite...
Disconnect.remote.wires.and.try.to.
light.pilot..If.pilot.now.works,.remote.
connections.are.faulty..Check.wiring.
diagram.
figure
10a/b.
. Main.burner.will.
1..Check.wiring.
(see figure 10a/b)
not.light.
2..Check.wall.switch.for.proper.con-
nection.
EP28-4
EP28-4-I
Pilot Burner Adjustment
1.
Determine.which.pilot.is.installed.in.the.fireplace.based.on.figure.
25.
2.
. Locate.Pilot.Adjustment.Screw..
(See figures
10a..or.10b
)
3.
. Adjust.pilot.key.to.provide.properly.sized.flame..
(See figure 10a or
10b).
4.
. Replace.pilot.adjustment.cap.
5.
. After.installing.or.servicing,.leak.test.with.a.soap.solution.with.
main.burner.on..Coat.pipe.and.tubing.joints,.gasket.etc..with.soap.
solution..Bubbles.indicate.leaks..Tighten.any.areas.where.the.
bubbles.appear.until.the.bubbling.stops.completely.
Figure 10.
PSE Pilot Burner used on the EP28 4" Series models.
