Airwell air conditioner troubleshooting

Products of the French company Airwell is known for decades. The company Airwell was founded in the 1947 and today it is one of the largest producer of HVAC equipment in the world. Airwell produces all types of home, semi-industrial and industrial air conditioning systems and markets more than 250 models. Find below the Airwell air conditioner troubleshooting table, which will help in case of Airwell equipment failure.

Airwell DLF 25 DCI air troubleshooting

NoSYMPTOMPROBABLE CAUSECORRECTIVE ACTION
1Power supply indicator (Red LED) does not light up.No power supplyCheck power supply. If power supply is OK, check display and display wiring, if OK, replace controller.
2Unit does not respond to remote control messageRemote control message not reached the indoor unitCheck remote control batteries, if batteries are OK, check display and display wiring, if OK, replace display PCB. If still not OK replace controller.
3Unit responds to remote control message but Operate indicator (Green LED) does not light upProblem with display PCBReplace display PCB. If still not OK replace controller.
Unit in heat mode and coil is still not warm.Change to cool mode and check.
4Indoor fan does not start (louvers are opened and Green LED does light up)Problem with PCB or capacitorChange to high speed and Check power supply to motor is higher than 130VAC (for triack controlled motor) or higher than 220VAC for fixed speed motors, if OK replace capacitor, if not OK replace controller
5Indoor fan works when unit is OFF, and indoor fan speed is not changed by remote control command.PCB problemReplace controller
6Compressor does not startElectronics control problem or protectionPerform diagnostics (See 14.3), and follow the actions described.
7Compressor stops during operation and Green LED remains onElectronic control or power supply problemPerform diagnostics (See 14.3), and follow the actions described.
8Compressor is on but outdoor fan does not workProblem with outdoor electronics or outdoor fanCheck outdoor fan motor according to the procedure in section 14.5.3 , if not OK replace controller
9Unit works in wrong mode (cool instead of heat or heat instead of cool)Electronics or power connection to RVCheck RV power connections, if OK, Check RV operation with direct 230VAC power supply, if OK, Replace outdoor controller.
10All components are operating properly but no cooling or no heatingRefrigerant leakCheck refrigeration system.
11Compressor is over heated and unit does not generate capacityEEV problemCheck EEV
12Units goes into protections and compressor is stopped with no clear reasonControl problem or refrigeration system problemPerform diagnostics (See 14.3), and follow the actions described.
13Compressor motor is generating noise and no suction occursPhase order to compressor is wrongCheck compressor phase order.
14Water leakage from indoor unitIndoor unit drainage tube is blockedCheck and open drainage tube.
15Freezing of outdoor unit in heat mode and outdoor unit base is blocked with iceConnect base heater.
16Unit operates with wrong fan speeds or wrong frequencyWrong jumper settingsPerform diagnostics (See 14.3), and check if units is operating by EEPROM parameters.

Airwell PNX 012 air troubleshooting

  SYMPTOM / PROBLEM PROBABLE CAUSECORRECTIVE ACTION
1Indoor unit power supply indicator (Red LED) does not light up.No Power supplyCheck supply voltage to main terminals L and N with volt meter.
Miss-wiringCheck all supply wiring to controller and terminals according to wiring diagram
Loose connectionCheck all power wiring connections
Display and display cableCheck continuity of each wire of the display wires/pins with Ohm meter
If still not OKCheck if fuse burnt
2Fuse burned in indoor unit controllerShort Circuit between wiresCheck for any cuts or exposed supply wires or misswiring
Failure of Indoor Unit Fan MotorCheck the motor and capacitor (13.5.19) Check for any cuts or exposed wires
If still not OKReplace fuse
3Indoor unit does not respond to remote control messageRemote control message not reached the indoor unitCheck remote control batteries
Check continuity of each wire of the display wires/pins with Ohm meter
If still not OKReplace display box or indoor Electronic Assembly
4Indoor unit responds to remote control message but Operate indicator (Green LED) does not light upProblem with display PCBReplace display PCB.
If still not OKReplace indoor Electronic Assembly
5Indoor fan does not start (louvers are opened and Green LED is ON)Unit in heat mode and coil is still not warmChange to Cool or Fan mode
Failure of Indoor Unit Fan MotorCheck the motor and capacitor (13.5.19) Check for any cuts or exposed wires
Problem with controller or motor capacitorChange to high speed and Check power supply to motor is higher than 220VAC
If still not OKReplace indoor Electronic Assembly
6Indoor fan works when unit is OFF. and indoor fan speed is not changed by remote control command.Controller problemReplace indoor Electronic Assembly
7Water leakage from indoor unitIndoor unit drainage tube is blockedCheck and open drainage tube
8One indoor unit or more are operating in cool mode with no capacity, and the other units have water leaks/ freezing problemsThe communication wires of the indoor units are switchedCheck and correct the communication wires connection
9One indoor or more are operating in heat mode with a limited capacity, and the coil on the other units are very hot.
10Outdoor unit display board and LEDs are offNo power supplyCheck supply voltage to main terminals L and N with volt meter.
Miss-wiringCheck all supply wiring to controller and terminals according to wiring diagram
Loose connectionCheck all power wiring connections
Burnt fuseCheck fuse on the main board (13.5.5)
If still not OKReplace main board (14.1.13)
11Compressor does not start operationOne or some components are not operating well Electronics control problem or protectionCheck for any fault code shown on display board and act accordingly (13.4)
PFC Chock coilCheck the PFC Chock coil (13.5.6)
Driver failureCheck if fault code #11. 18. 19 or 26 is shown on display board. If so. fix the problem according to 13.5.5 or replace driver (14.1.15.).
If still not OKReplace compressor (14.1.11.)
12Cooling capacity is not sufficientUnit size not match the loadCheck if the size chosen for the complete room(s) load is enough or need bigger units
Piping size not matching systemCheck if piping is installed correctly and proper diameter size and total length is according to unit specifications
Refrigerant leakage Refrigerant overchargeCheck refrigeration system (13.3)
Refrigerant clogCheck and repair clogging specially near the EEV
Electronics control problem or protectionCheck for any fault code shown on display board and act accordingly (13.4)
Compressor failureCheck if fault code #11 or 26 is shown on display board. If so. fix the problem according to 13.5.10 or replace driver
Indoor coil blockClean filters and/or remove block or air by-pass
Indoor fan malfunctionCheck the motor and capacitor (13.5.19)
Outdoor coil blockRemove block and/or avoid air by-pass
Outdoor fan malfunctionCheck outdoor fan motors (13.5.9)
EEV malfunctionCheck EEV (13.5.12)
Thermistor(s) malfunctionCheck if any of fault codes #1-10 is shown on display board. Replace faulty thermistors (14.1.12.)
13Heating capacity is not sufficientCheck all according to above cooling problem (10)
Reverse valveCheck reversing valve operation (13.5.11)
Deicing not performed well (during low outdoors temperatures)Check OCT and OAT thermistors fault codes (#1-2 and 7-8). Check OCT thermistor if connected well to pipe Check OAT thermistor if connected well. Check the thermistors operation (13.5.13)
14Compressor is over heatedElectronic controlCheck for any fault code shown on display board and act accordingly (13.4)
EEV problemCheck EEV (13.5.12)
Refrigerant leakageCheck refrigeration system (13.3)
Indoor coil blockClean filters and/or remove block
Indoor fan malfunctionCheck indoor fan motor and capacitor (13.5.19)
Outdoor coil blockRemove block and/or avoid air by-pass
Outdoor fan malfunctionCheck outdoor fan motors (13.5.9)
Compressor malfunctionCheck the compressor (13.5.10)
15Compressor stops many times during operationCheck all according to above problem (12)
HP SwitchCheck if HPS fault code (#8) is accruing frequently If so. Check the switch operation (13.5.14)
LP SwitchCheck if LPS fault code (#9) is accruing frequently. If so. check the switch operation (13.5.15)
16Not all units are operatingCommunication problemsCheck the communication between outdoor and indoor units (13.5.17)
17Unit is cooling while in heat modeRV problemCheck RV operation (13.5.11)
IDU-ODU communicationCheck the communication between outdoor and indoor units (13.5.17)
18Compressor is generating abnormal noisePhase order to compressor is wrongCheck compressor phase order
Compressor internal parts wearingReplace compressor (14.1.11.)
VibrationCheck all piping connections. Check compressor rubbers are fixed well. Check all screws on unit metal chassis are tightened. Check that no piping is in contact with each other or with other parts.
19Freezing of outdoor unit coil in heat mode and outdoor unit base is blocked with iceConnect base heater
20The unit stop suddenly during operationEMC interference to the A/C unitCheck for EMC problems (13.5.20.1)
21Indoor unit Indicator leds may flicker
22Other home appliances operation is faulty such as noise appears in the television picture, or the picture is distorted or static occurs in the radio soundEMC interference by the A/C unitCheck for EMC problems (13.5.20.2)
23All othersCheck for any fault code shown on display board and act accordingly (13.4)

Airwell XLM30RCB air troubleshooting

ProblemCauseRemedy
• Unit does not operate. Standby indicator does not light up.Unit not connected to power■ Plug in the power cord.
Power failure■ Check main fuse.
• Unit does not operate. Standby indicator lights.Remote control malfunctions The remote control is locked.■ Check remote control batteries.
■ Try to operate from a closer distance.
■ Start from on-unit controls.
■ Perform reset operation by pressing buttons: (7) (8) for 5 sec.
■ Unlock the remote control.
• Unit does not respond properly to remote control command.IR signal does not reach unit.■ Check for obstruction between unit and remote control, Clear if needed.
Distance between remote control and unit too large or aimed at from improper angle.■ Get closer to unit.
IR receiver on-unit exposed to strong light source.■ Dim lights, fluorecents especially
• Air does not blow out from indoor unit.De-icing protection mode is activated.■ Normal operation in HEATING mode.
Unit is in AUTO FAN mode.■ Normal operation in DRY mode.
Over cooling in DRY.
• COOLING, DRY or HEATING does not start immediately.3-min. Compressor delay start.■ Normal operation for these modes.
• Unit functions but does not perform sufficiently.Improper temperature setting.■ Reset temperature.
Unit capacity insufficient for load or room size.■ Consult your dealer.

Airwell XV26RCA air troubleshooting

TroublePossible CauseRemedy
Air conditioner does not run at all.1. Power failure.1. Restore power.
2. Leakage circuit breaker tripped.2. Contact service center.
3. Line voltage is too low.3. Consult your electrician or dealer.
4. Batteries in remote control unit have run down.4. Replace batteries.
OPERATION lamp blinks and air conditioner does not operate.Trouble in system.Contact service center.
Compressor runs but soon stops.Obstruction in front of condenser coil.Remove obstruction.
Poor cooling (or heating) performance.1. Dirty or clogged air filter.1. Clean air filter to improve airflow.
2. Heat source or many people in room.2. Eliminate heat source if possible.
3. Doors and/or windows are open.3. Shut them to keep the heat (or cold) out.
4. Obstacle near air intake or air discharge port.4. Remove it to ensure good airflow.
5. Thermostat is set too high for cooling (or too low for heating).5. Set the temperature lower (or higher).
6. (Outdoor temperature is too low for heating.)6. (Consult your dealer or try to use another heat appliance.)
Clicking sound is heard from the air conditioner.In heating or cooling operation, any plastic parts may expand or shrink due to a sudden temperature change. In this event, a clicking sound may occur.This is normal, and the sound will soon disappear.
OPERATION lamp lights but outdoor unit will not run.1. The use of cellular phones near the air conditioner may cause disturbance to its normal operation.1. Turn off the power then restart the air conditioner after a while.
2. Consult your dealer.