Haier air conditioner troubleshooting

Haier 0010571223 air conditioner troubleshooting

ProblemCause/Solution
Sound of water flowings are not problems.During unit start and operation or at stop, a swishing or gurgling noise may be heard. This noise is generated by refrigerant flowing in the system.
Sound of cracking is heard.During unit operation, a cracking noise may be heard. This noise is generated by the casing expanding or shrinking because of temperatuer changes.
Smells are generated.This is because the system circulates smells from the interior air such as the smell of cigarettes or the painting on the unit.
During operation, white fog or steam comes out of indoor unit.When unit is running at places like restaurant where dense edible oil fumeis always exist, this will happen. To prevent frost from accumulating on indoor heat exchanger, unit will switch to fan op
In cooling operation, unit switches to fan operation.To prevent frost from accumulating on indoor heat exchanger, unit will switch to fan operation for a while then resume cooling operation.
Unit will not restart after stop. Won't start?Though ON/OFF button is set to ON, unit won't resume cooling, dry or heating operation in 3 min after it is stopped, this is because of 3-min-delay protection circuit.
No outlet air or fan speed can't be changed in dry mode.Unit will reduce fan speed repeatedly and automatically if room temp. is too low in dry operation.
In heating operation, water or steam are blown out of indoor unit.This occurs when frost accumulated on the outdoor unit is removed. (during defrosting operation)
In heating operation, indoor fan won't stop even if unit is stopped.After unit stops, indoor fan will go on running until indoor unit cools down.

Haier A2SM-18HB03 air conditioner troubleshooting

C CONDITIONCAUSES OR CHECK POINTS
The system does not start re-operation immediately.This is for protection of the system.
After a stop, the system does not start operation for approx, 3min.
Smells are generated.This is because the system circulates smells from the interior air such as the smell of cigarettes, cosmetics, the walls or furniture.
Occurring of noiseWhen cooling is started or heating is stopped, a swishing or a gurgling noise may be heard. This noise is generated while the refrigerant is flowing in the air conditioner.
When starting or stopping operation, a cracking noise may be heard. This noisr is generated by temperature changes.
A whooshing noise is may be heard during operation of the system. This noise is generated when the refrigerant changes direction.
•Air does not flow. (Indoor Unit)During the dry mode operation, air may not flow out, to prevent excessive cooling.
• Air flow speed can not be changed.During the heating operation, air does not flow out until the air is heated enough to prevent cold air flow. During the thawing in heating, air may not flow.
Air does not flow. (Outdoor Unit)During the dry mode operation and heating mode operation. Air may not flow out.
Cooling/heating is not sufficient.The cooling / heating function may not work effectively when the air filter is clogged with dust and dirt.
Make sure the room temperature has not yet reached the designated level.
Make sure the air flow speed is not set at ”LO".
Make sure the inlet or outlet of the outdoor unit is not blocked.
When the room temperature has not reached the required level because of a low ambient temperature, add other heating facilities.
The indicator on the wireless remote controller is dim.Make sure if the dry batteries have enough charge. Replace worn dry batteries with a new pair.
The indicator dims when sending signals.Use R-03 dry batteries.
Indication does not appear on the wireless remote controller.Make sure the dry batteries are set in the right directions.
Misting (Indoor Unit)It is caused by chilled air in cooling operation.
Steaming (Outdoor Uint)It is caused by defrosting of outdoor unit in heating operation.

Haier AB072FDAHA air conditioner troubleshooting

PresentationReason
• Sound of flowing water• Sound of flowing water during start, running and short while after stoppage. Sometimes the sound increases 2-3 minutes after start, it is made by flowing refrigerant and discharging of condensate water.
• "click" sounds• Sometimes the machine makes i click! sound during operation because of changing operation and slight shrinkage of heat exchanger etc.
• Blowing with smell• Due to adherence of smell given off by wall, carpet, furniture, clothes, cigarette and cosmetic etc. to air-conditioner.
• Running indicator flashes• Indicator flashes when turning on manual power switch after the machine is reenergized after a power failure.
• Displays shows i stand by!• The machine cannot run cooling model as other indoor unit running heating mode.
• It is displayed when desired operation mode is different with fixed mode that might be set by air-conditioner controller.
• Sounds, white vapor or cool air during stopping of indoor unit• To prevent oil or refrigerant detaining in indoor unit being stopped, refrigerant ant flows in short while and makes sounds like iSha-i or icola-i. In addition, white vapor sometime comes out when other indoor units are running heating program while cool air comes if others running cooling program.
• Click! sound while switch- ing on power of the machine• Sound made by reset electronic of expansion valve in switching on of the power.
The machine runs or stops automatically• Check whether status of i timed power on! or i timed power off! has been set.
The machine cannot run• Whether there is a power failure?
• Whether manual power switch is off?
• Whether power fuse blows or breaker is off?
• Whether protection setting works (running indicator lights)?
• Whether timing function works (running indicator lights)?
• Whether heating and cooling are selected at the same time (circuit controller displays i stand by!)?
Poor heating or cooling effect• Whether inlet and outlet of outdoor unit is blocked?
• Whether doors and windows are open?
• Whether any dirt or dust obstructs air filter screen?
• Whether blowing rate is set to is light? Operation is set to 1 blowing! mode?
• Whether temperature is set properly?

Haier AS072AIAAA air conditioner troubleshooting

ProblemCauseSolution
Normal Performance inspectionThe system does not restart immediately.Cause or check points
• When unit is stopped, it won't restart immediately until 3 minutes have elapsed to protect the system.
• When the electric plug is pulled out and reinserted, the protection circuit will work for 3 minutes to protect the air conditioner.
Noise is heard• During unit operation or at stop, a swishing or gurgling noise may be heard. At first 2-3 minutes after unit start, this noise is more noticeable. (This noise is generated by refrigerant flowing in the system.)
• During unit operation, a cracking noise may be heard. This noise is generated by the casing expanding or shrinking because of temperature changes.
• Should there be a big noise from air flow in unit operation, air filter may be too dirty.
Smells are generated.• This is because the system circulates smells from the interior air such as the smell of furniture, cigarettes.
Mist or steam are blown out.• During COOL or DRY operation, indoor unit may blow out mist. This is due to the sudden cooling of indoor air.
Multiple checkDoes not work at all.• Is power plug inserted?
• Is there a power failure?
• Is fuse blown out?
Poor cooling• Is the air filter dirty? Normally it should be cleaned every 15 days.
• Are there any obstacles before intel and outlet?
• Is temperature set correctly?
• Are there some doors or windows left open?
• Is there any direct sunlight through the window during the cooling operation?(Use curtain)
• Are there too much heat sources or too many people in the room during cooling operation?

Haier HW-18L2H air conditioner troubleshooting

ConditionCheck ItemCorrective Action
Doesn't operateIs plug firmly inserted? Is fuse burned out?Restore power or replace fuse.
Is there power failure?
Is thermostat switch incorrectly adjusted?Adjust the themostate.
Is there direct sunlight into the room?Use curtain or blinds.
No cool air of poor coolingIs mode selection switch set to fan mode?Select cool mode.
Are doors or windows left open?Shut doors and windows.
Is there any obstacle blocking air inlet or outlet?Remove the obstacle.
Is the fresh air window shifted to the open?Close the fresh air window.
Is there a strong heat source in the room?Remove or turn off the heat source.
Is air filter clogged?Remove and clean.

Haier HWE18VCN air conditioner troubleshooting

POSSIBLE PROBLEMPOSSIBLE CAUSEREMEDY
Air Conditioner does not start or operatePower supply cord is not plugged into an outlet.Plug unit into a mating grounded outlet.
Power supply cord has tripped.Press and release RESET button on the power supply cord.
Unit is turned off.Turn on unit using remote control or on control panel.
A household fuse or circuit breaker has blown.Replace the fuse or reset the circuit breaker.
Remote control is not workingBatteries are dead.Replace the batteries.
Batteries inserted wrong.Make sure batteries are inserted in the correct position.
Room does not feel cold enoughThe room is too hot.Allow time for the room to cool down when you turn on the unit.
The temperature control may not be set correctly.Adjust the temperature control on the control panel or remote control.
Air flow is restricted.Make sure the air discharge area is not blocked.
Room feels too coldTemperature set too low.Raise the set temperature.
Air conditioner cycles on and off too oftenAir filter is dirty or restricted.Clean the air filter.
Air flow is restricted.Make sure the air discharge area is not blocked.
Outside air temperature is below 61°F.Do not operate the unit when the outside temperature is below 61°F.
Outside temperature is very hot.Raise the FAN speed to the highest setting.
Water drips into your houseAir conditioner is not properly leveled.Tilt unit slightly from the front to the back. Refer to Installation section. DO NOT drill a hole in the cabinet base.
Water drips outside your houseHot, humid weather.This is normal during days with high humidity.
Water collects in cabinet baseHumidity drains into cabinet base.This is normal during days with high humidity. DO NOT drill a hole in the cabinet base.
Air conditioner is freezing up; ice forming on coilTemperature outside is too low, below 61*F.To defrost coil, set to FAN ONLY mode and set temperature higher.

Haier SYJS-0308 air conditioner troubleshooting

Failure codeFailure positionJudgment measure
1Outdoor defrosting temp, sensor TE circuitExamine the sensor below 20H in cut circuit or over 1000H in short circuit for continuous 60 seconds, recoverable
2Ambient temp, sensor TA circuitExamine the sensor below 20H in cut circuit or over 1000H in short circuit for continuous 60 seconds, recoverable
3Suction temp, sensor TS circuitExamine the sensor below 20H in cut circuit or over 1000H in short circuit for continuous 60 seconds, recoverable
4Discharge temp, sensor TD circuitExamine the sensor below 20H in cut circuit or over 1000H in short circuit for continuous 60 seconds after compressor working for 3 minutes, recoverable
5Outdoor mid-condenser temp, sensorExamine the sensor below 20H in cut circuit or over 1000H in short circuit for continuous 60 seconds, recoverable
6Over currentAlarm over current failure, on exceeding current protection value C for 5 seconds. After occurrence 3 times in 30 minutes, failure code displays on the LED, unrecoverable
7Current mutual inductance circuitAfter closing compressor, the current of current mutual inductance is checked over 15A. when starting up the compressor, frequency is over 60HZ, and current is below 5A, recoverable
8Inverter compressor built-in over-load protection circuitInverter compressor built-in over-load protector acts.
9I PM protectionIPM over current, short current* temp, too high* lack of pressure protect alarm 3 times continuously in 30 minutes, unrecoverable
10EEPROM on PCB faulty857 reads and writes the data of EEPROM faulty, flashes 11 times, unrecoverable
11Discharge temp. sensor protection acts (TD)Examine TD1 sensor alarms compressor off after 5 seconds at over 120‘C, confirming 3 times in 30minutes, and displaying 11 on the LED, unrecoverable
12Pressure sensor (Pd* Ps) wiring faultyAfter compressor starting up 3 minutes, examine compressor rate(Pd/Ps) is below 0.9 for continuous 60 seconds, recoverable
13Pressure switch circuitHigh pressure switch acts, trouble disappears after 2 minutes normally
14Low pressure protection acts (Ps)Cooling: examine Ps below 0.2kgG/cm2 for 30 seconds continuously after compressor starts up;
Heating: examine Ps below -0.2kgG/cm2 for 10 minutes continuously after compressor starts up; recoverable
15High pressure protection acts (Pd)Examine sensor Pd over 27.5kgG/cm2
16Suction temp, protection acts (TS)On compressor working, for continuous 10 minutes, examine sensor TS over 40‘C, recover after 2 minutes.
17High pressure sensor Pd circuitFor continuous 60 seconds, examine sensor Pd can automatically run in support.
18Low pressure sensor Ps circuitFor continuous 60 seconds, examine sensor Ps below -0.95kgG/cm2 or on inverter compressor running individually, when performance frequency is below S3, examine sensor Ps is over 9kgG/cm2, can automatically run in support.
19At low frequency, discharging temp, protection acts (TD)When inverter compressor performance frequency is S3,S4, examine sensor TD1 is over 110*0
20857 receive 846 communication faultyContinuous communication 200 seconds invalid, alarms flashes.
21846 receive 857 communication faultyContinuous communication 200 seconds invalid, alarms on LED
22846 receive indoor unit failureCan not receive any signal from indoor unit for 4 minutes, alarms 22 on LED
23846EEPROM/857EEPROM failureAlarms display on LED

Haier V1124C2H air conditioner troubleshooting

SymptomPossible CauseRemedy
No coolingPower off or loose electrical connectionMake sure main switch is ON. Check and tighten all connections.
Incorrect thermostat settingSet thermostat correctly
Defective contactorCheck for 24V at contactor coil.
Open circuit breaker of blown fusesReset or replace
Defective transformerCheck wiring - Replace it.
Interconnecting low voltage wiring damageReplace thermostat wiring
Insufficient CoolingDirtv filtersClean & replace
Indoor air blockageCheck supply registers and return grills for blockage.
Blocked outdoor coilClear away leaves and other debris
Improperly sized unitRecalculate load
Improper airflowCheck - should be 400CFM/Ton
Incorrect refrigerant chargeCharge correctly per instruction.
Air, non-condensable or moisture in systemRecover refrigerant, evacuate & recharge, add filter drier
Incorrect voltageAt compressor terminals, voltage must be within 10% of rating plate volts w hen unit is running.
Water on floor or in furnaceBlocked condensate drain and "P" trapRemove blockage
Condenser fan runs, compressor doesn’tRun or start capacitor defectiveReplace
Loose connectionCheck and tighten all connections.
Compressor stuck, grounded or openWait for 2 hours for overload to reset.
motor winding, open internal overloadReplace compressor if still open.
Low voltage conditionAt compressor terminals, voltage must be within 10% of rating plate volts when unit is running.
Low voltage conditionAdd start kit components
Compressor short-cyclingIncorrect voltageAt compressor terminals, voltage must be within 10% of rating plate volts when unit is running.
Defective overload protectorReplace - check for correct voltage
Refrigerant underchargeAdd refrigerant
Register sweatLow evaporator airflowIncrease blower speed or reduce restriction - replace air filter
High head - Low vapor pressuresRestriction in liquid line, metering device or filter drierReplace defective components
Flowrator piston size too smallChange to correct size piston
Incorrect capillary tubesChange coil assembly
Blocked outdoor coilClear away leaves and other debris
High head - High or normal vapor pressuresRefrigerant overchargeCorrect system charge
Condenser fan not runningRepair or replace
Air, non-condensable or moisture in systemRecover refrigerant, evacuate & recharge. add filter drier
Low head - High vapor pressuresFlowrator piston size too largeChange to correct size piston
Defective compressor valvesReplace compressor
Low vapor - cool compressor - iced evaporator coilIncorrect capillary tubesReplace coil assembly
Low evaporator airflowIncrease blower speed or reduce restriction - replace air filter
Operating below 65 F outdoorsAdd low ambient kit
Moisture in the systemRecover refrigerant, evacuate & recharge, add filter drier
High vapor pressureExcessive loadRecheck load calculation
Defective compressorReplace
Fluctuating head and vapor pressuresAir or non-condensibles in systemRecover refrigerant, evacuate & recharge.
Pulsing noise at metering device or liquid lineAir or non-condensibles in systemRecover refrigerant, evacuate & recharge