What to do if the compressor of my Airwell SX 24 DCI does not start?
If the compressor of your Airwell Heat Pump doesn't start, it may be due to an electronics control problem or protection issue. You should perform diagnostics as described in section 11.3 of the manual and follow the recommended actions.
Why is my Airwell SX 24 DCI not responding to the remote control?
If your Airwell Heat Pump unit isn't responding to the remote control, the remote control message may not be reaching the indoor unit. First, check the remote control batteries. If the batteries are fine, inspect the display and display wiring. If those are OK, replace the display PCB. If the unit still doesn't respond, replace the controller.
What to do if the compressor of my Airwell SX 24 DCI stops during operation?
If the compressor in your Airwell Heat Pump stops during operation but the green LED remains on, it could be due to an electronic control or power supply problem. You should perform diagnostics as described in section 11.3 of the manual and follow the recommended actions.
Why is the indoor fan of my Airwell Heat Pump not starting?
If the indoor fan of your Airwell Heat Pump doesn't start, but the louvers are open and the green LED is lit, there could be a few reasons: * If the unit is in heat mode, the coil might not be warm yet. Try changing to cool mode to test. * There might be a problem with the PCB or capacitor. Switch to high speed and check if the power supply to the motor is higher than 130VAC (for triack controlled motor) or higher than 220VAC for fixed speed motors. If it is, replace the capacitor. If not, replace the controller.
What to do if Airwell SX 24 DCI Heat Pump responds to remote but the Green LED doesn't light up?
If your Airwell Heat Pump responds to the remote control message but the Operate indicator (Green LED) doesn't light up, there may be a problem with the display PCB. Replace the display PCB. If the issue persists, replace the controller.
Why is the indoor fan of my Airwell SX 24 DCI Heat Pump working when the unit is off?
If the indoor fan of your Airwell Heat Pump is working when the unit is OFF, and the fan speed can't be changed with the remote, it indicates a PCB problem. Replace the controller.
How to fix a power supply indicator (Red LED) that does not light up on my Airwell SX 24 DCI Heat Pump?
If the power supply indicator (Red LED) on your Airwell Heat Pump doesn't light up, it indicates there's no power supply. Check the power supply. If the power supply is OK, check the display and display wiring. If those are OK, replace the controller.
General overview of the SX split ceiling mounted range, including heat pump models.
Key technological innovations and benefits of the SX series.
Features and mounting options of the indoor unit.
Details the filtration system, focusing on pre-filters.
Explains the microprocessor indoor controller and infrared remote control.
Describes the installation, construction, and components of the outdoor units.
Information on the flare type interconnecting tubing used for installation.
Details about optional accessories like the RCW Wall Mounted Remote Control.
Mentions that installation and operation manuals are supplied with each unit.
Table showing compatible indoor and outdoor units for matching.
Technical specifications for the SX 9 DCI indoor and GC 9 DCI outdoor units.
Technical specifications for the SX 12 DCI indoor and GC 12 DCI outdoor units.
Technical specifications for the SX 18 DCI indoor and GC 18 DCI outdoor units.
Technical specifications for the SX 24 DCI indoor and GC 24 DCI outdoor units.
Technical specifications for the SX 30 DCI indoor and GC 30 DCI outdoor units.
Defines the operating limits for cooling and heating modes based on temperature.
Diagrams showing the external dimensions of SX 9 and SX 12 DCI indoor units.
Diagrams showing the external dimensions of SX 18, 24, and 30 DCI indoor units.
Diagrams showing the external dimensions of GC 9, 12, and 18 DCI outdoor units.
Diagrams showing the external dimensions of GC 24 and 30 DCI outdoor units.
Cooling and heating performance data, capacity correction factors for SX 9 DCI.
Cooling and heating performance data, capacity correction factors for SX 12 DCI.
Factors affecting cooling and heating capacity based on tubing length.
Cooling and heating performance data, capacity correction factors for SX 18 DCI.
Factors affecting cooling and heating capacity based on tubing length for SX 18 DCI.
Cooling and heating performance data, capacity correction factors for SX 24 DCI.
Factors affecting cooling and heating capacity based on tubing length for SX 24 DCI.
Cooling and heating performance data, capacity correction factors for SX 30 DCI.
Factors affecting cooling and heating capacity based on tubing length for SX 30 DCI.
Introduces sound pressure level measurement and methodology.
Octave band sound pressure level spectrum for indoor units.
Octave band sound pressure level spectrum for outdoor units.
Electrical specifications including power supply, current, and wiring details.
Wiring diagram for SX 9, 12, 18 DCI indoor and GC 9, 12, 18 DCI outdoor units.
Wiring diagram for SX 24 and 30 DCI indoor units.
Wiring diagram for GC 24 and 30 DCI outdoor units.
Refrigeration circuit diagrams for cooling and heating modes.
Common system failures, their probable causes, and corrective actions.
Procedures for checking system pressures and thermodynamic measures.
How to enter and interpret diagnostic modes for indoor and outdoor units.
Details on indoor unit diagnostic fault codes and their meanings.
Corrective actions for indoor unit diagnostic faults.
Details on outdoor unit diagnostic fault codes and their meanings.
Corrective actions for outdoor unit diagnostic faults.
Using MegaTool software for monitoring system states and troubleshooting.
Basic checks for mains voltage, power input, and fan motor.
Safety precautions, advice, and important notices related to high voltage and charged capacitors.
Explains DCI software, system operation, and compressor frequency control.
Setting compressor target frequency based on NLOAD and outdoor temperature.
Procedures for controlling compressor startup based on speed and time.
Details on indoor fan speed settings and operation in different modes.
Logic for controlling outdoor fan speed based on various conditions.
How the EEV opening is controlled based on compressor and temperature.
Rules for the operation and switching of the reversing valve.
Conditions for the ionizer to be active.
Conditions for the base heater operation, dependent on RV and OAT.
NLOAD calculation and fan speed adjustment in Cool Mode.
NLOAD calculation and fan speed adjustment in Heat Mode.
Logic for automatic switching between Cool and Heat modes.
Fan and compressor operation details for Dry Mode.
Description of various protection codes and their operational impact.
Compressor overheating protection logic based on CTT and control zones.
Heat sink overheating protection logic based on HST and Delta HST.
Conditions and procedures for outdoor coil deicing operation.
Protection mechanism for condensate water overflow, related to water level sensors.
Functions of the indoor unit dry contact, selectable via J9.
How to use the mode button for forced operation and temperature control.
Explanation of indoor and outdoor unit controls and indicator lights.
Procedures for entering and operating the unit in Test Mode.
Model dependent software parameters for indoor units.
Software parameters specific to DNG models.
Software parameters specific to WNG Wall Mounted Models.
Software parameters specific to SX models.
Model dependent software parameters for DCI50/60 outdoor units.
Software parameters specific to DCI72Z outdoor units.
Software parameters specific to DCI72/80 outdoor units.
Exploded view diagram for SX 9 and 12 DCI indoor units.
Spare parts list for SX 9 and 12 DCI indoor units.
Exploded view diagram for SX 18, 24, and 30 DCI indoor units.
Spare parts list for SX 18 DCI indoor units.
Spare parts list for SX 24 and 30 DCI indoor units.
Exploded view diagram for GC 9, 12 DCI outdoor units.
Spare parts list for GC 9, 12 DCI outdoor units.
Exploded view diagram for GC 18 DCI outdoor units.
Spare parts list for GC 18 DCI outdoor units.
Exploded view diagram for GC 24, 30 DCI outdoor units.
Spare parts list for GC 24, 30 DCI outdoor units.
References to separate Installation and Operation Manuals for the SX series.
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