Sime RS MK II Serie Manual Del Usuario página 57

–. Clean. the. stack. union. and. check. the. effi-
ciency.of.the.flue..
–. After.assembly,.test.the.seal.of.all.gas.con-
nections. using. soapy. water. or. a. product.
manufactured.for.the.purpose..Do.not.use.
open.flame.
Preventive maintenance and control of the
functioning of the device and its safety sy-
stems must be performed exclusively by au-
thorised technical service technicians.
4.7 FAULT FINDING
The power supply to the ring is on but the
boiler does not start.
–.. Check.the.gas.supply.to.the.boiler.
–.. Check.that.the.safety.and.control.thermo-
stats.are.closed..
–.. Gas.is.not.reaching.the.pressure.switch.
–.. Check. that. the. electronic. device. is. wor-
king,.and.replace.it.if.necessary.
The boiler comes on and goes off continual-
ly, as does the red gas pressure switch indi-
cator light.
–.. Check.the.pressure.drop.of.the.gas.mains.
when. the. boiler. starts. up.. The. dynamic.
pressure.value.at.the.gas.valve.inlet.must.
be.no.less.than.9.7.mbar.
–.. Check.the.gas.line.
–.. Check.for.load.loss.in.any.solenoid.valves.
or.safety.devices.installed.upstream.of.the.
gas.assembly..
–.. Check. gas. pressure. switch. setting. and.
functioning,. and. replace. the. switch. if.
necessary.
The ignition electrode discharges but the
burner is not ignited.
–.. There.may.be.air.in.the.pipe.the.first.time.
the.burner.is.turned.on.for.the.first.time.or.
if.it.has.been.inactive.for.a.long.time..
The ignition electrode does not discharge.
–.The.electrical.cable.is.interrupted.or.is.not.
properly.fastened.to.terminal.10.
–.The.device's.transformer.has.burnt.out.and.
must.be.replaced.
No flame detection.
–.. The.phase.and.neutral.positions.on.the.ter-
minal.board.have.not.been.complied.with..
–.. Check.if.the.ground.wire.is.connected.
–.. The. electrode. cable. is. interrupted. or. not.
correctly.fastened.to.terminal.8..
–.. The.detection.electrode.is.grounded..
–.. The. electrode. is. very. worn. or. its. ceramic.
guard. has. been. ruined.. It. must. be. repla-
ced..
–.. The.device.is.faulty.and.must.be.replaced..
–.. Phase/phase. electrical. lines. may. require.
application.of.a.transformer,.code.6239700.
The boiler works only at the rated pressure
and does not permit pressure reduction.
–.. There. is. not. differential. between. the. set-
tings. of. the. two. contacts. on. the. control.
thermostat..It.must.be.replaced..
The boiler goes out easily and creates con-
densation.
–.. Check.that.the.main.burner.flame.is.adju-
sted.correctly.and.that.gas.consumption.is.
proportionate.to.boiler.power..
–.. Poor. ventilation. in. the. room. in. which. the.
boiler.is.installed..
–.. Flue. has. insufficient. draught. or. does. not.
meet.requirements.
–.. The. boiler. is. working. at. temperatures.
which. are. too. low.. Adjust. the. boiler. ther-
mostat.to.a.higher.temperature.
The thermostat turns the boiler on again
with a temperature difference which is too
high.
–.. Replace.the.control.thermostat;.it.is.incor-
rectly.set.
KEY
1.. Baseboard
2.. Door
3.. Upper.front.panel
4.. Upper.front.wall
5.. Flue.gas.chamber.cleaning.plate
6.. Cover
7.. Burner
Fig..23
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