Quietside QSFMO-D2, Руководство по обслуживанию

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36
Installation.and.Maintenance
Service Manual
7. Abnormal Sound and Vibration
Possible.causes. Discriminating.method.(air.conditioner.status) Troubleshooting.
When.turn.on.or.turn.off.the.unit,.
the.panel.and.other.parts.will.
expand.and.there's.abnormal.
sound.
There's.the.sound.of."PAPA"
Normal.phenomenon..Abnormal.sound.will.
disappear.after.a.few.minutes..
When.turn.on.or.turn.off.the.unit,.
there's.abnormal.sound.due.
to.flow.of.refrigerant.inside.air.
conditioner
Water-running.sound.can.be.heard.
Normal.phenomenon..Abnormal.sound.will.
disappear.after.a.few.minutes..
Foreign.objects.inside.the.indoor.
unit.or.there're.parts.touching.
together.inside.the.indoor.unit.
There's.abnormal.sound.fro.indoor.unit
Remove.foreign.objects..Adjust.all.parts'.
position.of.indoor.unit,.tighten..screws.and.stick.
damping.plaster.between.connected.parts.
Foreign.objects.inside.the.outdoor.
unit.or.there're.parts.touching.
together.inside.the.outdoor.unit.
There's.abnormal.sound.fro.outdoor.unit
Remove.foreign.objects..Adjust.all.parts'.
position.of.outdoor.unit,.tighten..screws.and.
stick.damping.plaster.between.connected.parts.
Short.circuit.inside.the.magnetic.
coil.
During.heating,.the.way.valve.has.abnormal.
electromagnetic.sound.
Replace.magnetic.coil.
Abnormal.shake.of.compressor. Outdoor.unit.gives.out.abnormal.sound.
Adjust.the.support.foot.mat.of.compressor,.
tighten.the.bolts.
Abnormal.sound.inside.the.
compressor.
Abnormal.sound.inside.the.compressor.
If.add.too.much.refrigerant.during.maintenance,.
please.reduce.refrigerant.properly..Replace.
compressor.for.other.circumstances..
6. Air Conditioner is Leaking
Possible.causes. Discriminating.method.(air.conditioner.status) Troubleshooting.
Drain.pipe.is.blocked. Water.leaking.from.indoor.unit
Eliminate.the.foreign.objects.inside.the.drain.
pipe
Drain.pipe.is.broken. Water.leaking.from.drain.pipe Replace.drain.pipe.
Wrapping.is.not.tight
Water.leaking.from.the.pipe.connection.place.of.
indoor.unit
wrap.it.again.and.bundle.it.tightly.
5. Compressor can't Operate
Possible.causes. Discriminating.method.(air.conditioner.status) Troubleshooting.
Wrong.wire.connection,.or.poor.
connection.
Check.the.wiring.status.according.to.circuit.
diagram.
Connect.wires.according.to.wiring.diagram.to.
make.sure.all.wiring.terminals.are.connected.
firmly
Capacity.of.compressor.is.
damaged.
Measure.the.capacity.of.fan.capacitor.with.an.
universal.meter.and.find.that.the.capacity.is.out.of.
the.deviation.range.indicated.on.the.nameplate.of.
fan.capacitor.
Replace.the.compressor.capacitor
Power.voltage.is.a.little.low.or.
high.
Use.universal.meter.to.measure.the.power.supply.
voltage..The.voltage.is.a.little.high.or.low.
Suggest.to.equip.with.voltage.regulator.
Coil.of.compressor.is.burnt.out
Use.universal.meter.to.measure.the.resistance.
between.compressor.terminals.and.it's.0
Repair.or.replace.compressor
Cylinder.of.compressor.is.blocked.Compressor.can't.operate. Repair.or.replace.compressor.
4. ODU fan Motor can't Operate
Possible.causes. Discriminating.method.(air.conditioner.status) Troubleshooting.
Wrong.wire.connection,.or.poor.
connection.
Check.the.wiring.status.according.to.circuit.
diagram.
Connect.wires.according.to.wiring.diagram.to.
make.sure.all.wiring.terminals.are.connected.
firmly
Capacity.of.the.ODU.fan.motor.is.
damaged.
Measure.the.capacity.of.fan.capacitor.with.an.
universal.meter.and.find.that.the.capacity.is.out.of.
the.deviation.range.indicated.on.the.nameplate.of.
fan.capacitor.
Replace.the.capacity.of.fan
Power.voltage.is.a.little.low.or.
high.
Use.universal.meter.to.measure.the.power.supply.
voltage..The.voltage.is.a.little.high.or.low.
Suggest.to.equip.with.voltage.regulator.
Motor.of.outdoor.unit.is.damaged
When.unit.is.on,.cooling/heating.performance.
is.bad.and.ODU.compressor.generates.a.lot.of.
noise.and.heat..
Change.compressor.oil.and.refrigerant..If.no.
better,.replace.the.compressor.with.a.new.one