Quietside QSFMO-D2, Руководство по обслуживанию

Страница: 26 / 55

35
Installation.and.Maintenance
Service Manual
Possible.Causes. Discriminating.Method.(Air.conditioner.Status) Troubleshooting.
Set.temperature.is.improper Observe.the.set.temperature.on.remote.controller..Adjust.the.set.temperature
Rotation.speed.of.the.IDU.fan.
motor.is.set.too.low
Small.wind.blow. Set.the.fan.speed.at.high.or.medium.
Filter.of.indoor.unit.is.blocked. Check.the.filter.to.see.it's.blocked. Clean.the.filter.
Installation.position.for.indoor.unit.
and.outdoor.unit.is.improper.
Check.whether.the.installation.postion.is.proper.
according.to.installation.requirement.for.air.
conditioner.
Adjust.the.installation.position,.and.install.the.
rainproof.and.sunproof.for.outdoor.unit
Refrigerant.is.leaking.
Discharged.air.temperature.during.cooling.is.
higher.than.normal.discharged.wind.temperature;.
Discharged.air.temperature.during.heating.is.
lower.than.normal.discharged.wind.temperature;.
Unit's.pressure.is.much.lower.than.regulated.
range.
Find.out.the.leakage.causes.and.deal.with.it..
Add.refrigerant..
Malfunction.of.4-way.valve. blow.cold.wind.during.heating. Replace.the.4-way.valve.
Malfunction.of.capillary
Discharged.air.temperature.during.cooling.is.
higher.than.normal.discharged.wind.temperature;.
Discharged.air.temperature.during.heating.is.
lower.than.normal.discharged.wind.temperature;.
Unit't.pressure.is.much.lower.than.regulated.
range..If.refrigerant.isn’t.leaking,.part.of.capillary.
is.blocked.
Replace.the.capillary
Flow.volume.of.valve.is.
insufficient.
Pressure.at.the.valve.is.much.lower.than.the.
regulated..range.i
Open.the.valve.completely.
Malfunction.of.horizontal.louver. Horizontal.louver.can’t.swing.
Refer.to.point.3.of.maintenance.method.for.
details.
Malfunction.of.the.IDU.fan.motor. The.IDU.fan.motor.can’t.operate.
Refer.to.troubleshooting.for.H6.for.maintenance.
method.in.details.
Malfunction.of.the.ODU.fan.motor.The.ODU.fan.motor.can't.operate.
Refer.to.point.4.of.maintenance.method.for.
details.
Malfunction.of.compressor. Compressor.can't.operate.
Refer.to.point.5.of.maintenance.method.for.
details.
9.4 Maintenance Method for Normal Malfunction
1. Air Conditioner Can't be Started up
2. Poor Cooling (Heating) for Air Conditioner
3. Horizontal Louver Can't Swing
Possible.Causes. Discriminating.Method.(Air.conditioner.Status) Troubleshooting.
No.power.supply,.or.poor.
connection.for.power.plug
After.energization,.operation.indicator.isn’t.bright.
and.the.buzzer.can't.give.out.sound.
Confirm.whether.it's.due.to.power.failure..If.yes,.
wait.for.power.recovery..If.not,.check.power.
supply.circuit.and.make.sure.the.power.plug.is.
connected.well..
Wrong.wire.connection.between.
indoor.unit.and.outdoor.unit,.
or.poor.connection.for.wiring.
terminals.
Under.normal.power.supply.circumstances,.
operation.indicator.isn't.bright.after.energization
Check.the.circuit.according.to.circuit.diagram.
and.connect.wires.correctly..Make.sure.all.
wiring.terminals.are.connected.firmly
Electric.leakage.for.air.conditionerAfter.energization,.room.circuit.breaker.trips.off.at.
once
Make.sure.the.air.conditioner.is.grounded.
reliably
Make.sure.wires.of.air.conditioner.is.connected.
correctly
Check.the.wiring.inside.air.conditioner..Check.
whether.the.insulation.layer.of.power.cord.is.
damaged;.if.yes,.place.the.power.cord.
Model.selection.for.air.switch.is.
improper
After.energization,.air.switch.trips.off Select.proper.air.switch
Malfunction.of.remote.controller.
After.energization,.operation.indicator.is.bright,.
while.no.display.on.remote.controller.or.buttons.
have.no.action..
Replace.batteries.for.remote.controller
Repair.or.replace.remote.controller
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
Stepping.motor.is.damaged. Stepping.motor.can't.operate. Repair.or.replace.stepping.motor.
Main.board.is.damaged.
Others.are.all.normal,.while.horizontal.louver.
can't.operate.
Replace.the.main.board.with.the.same.model