What to do if Daikin FBQ125D2VEB Air Conditioner detects multiple master units?
If your Daikin Air Conditioner detects multiple master units, connect the remote controller to only one indoor unit.
What to do if Daikin FBQ125D2VEB Air Conditioner has gas shortage due to clogging in refrigerant piping?
If you suspect clogging in the refrigerant piping system of your Daikin Air Conditioner, check for a failure to open the stop valve and any clogging within the refrigerant system.
What does excess indoor units connected error mean on Daikin Air Conditioner?
This error will be displayed if five or more indoor units are connected to your Daikin Air Conditioner.
Why does my Daikin Heat Pump emit an odor?
If your Daikin Heat Pump emits an odor, it's likely due to room smells and cigarette odors that have accumulated inside the indoor unit. To resolve this, the inside of the indoor unit must be cleaned.
General| Category | Air Conditioner |
|---|---|
| Type | Split System |
| Cooling Capacity | 12.5 kW |
| Heating Capacity | 14.0 kW |
| Refrigerant | R410A |
Records changes and updates to the service manual.
Essential safety guidelines for repair and operation, categorized by user and worker safety.
Explanation of icons used in the manual for specific information or warnings.
Introduction to the service manual for the RZQG-L & RZQSG-L series Heat Pump System.
Lists and categorizes model names for indoor and outdoor units.
Visual presentation of the different outdoor unit models.
Defines the operational temperature and humidity limits for the system.
Operating range graphs for Smart models in cooling and heating modes.
Operating range graphs for Classic models in cooling and heating modes.
Operating range graphs for EDP models in cooling and heating modes.
Details on wired remote controllers, including applicable models and functions.
Information on wireless remote controllers, including models and functions.
Procedures for entering and operating service mode for remote controllers.
Steps for performing inspection mode on remote controllers.
Lists models compatible with the wired remote controller.
Detailed explanation of the buttons and display elements of the BRC1D528 controller.
Details on the buttons and display elements of the BRC1E52/53 remote controller.
Procedure to set one remote controller as MAIN and the other as SUB.
How to set group numbers for centralized control using the operating remote controller.
Lists models compatible with wireless remote controllers.
Identifies and describes components of the wireless remote controller and receiver.
Instructions for setting the address for the wireless remote controller receiver.
Procedures for displaying service data like error history and sensor data.
Guide to performing service settings such as forced fan ON, individual settings, and unit number change.
Procedure for displaying service data using the BRC1E52/53 remote controller.
Steps to enter and use inspection mode for the BRC1D528 controller.
Procedure for checking malfunctions or warnings using the BRC1E52/53 controller.
Explains the role of key components and thermistors in the system.
Visual representation of the system's operational logic for cooling and heating.
In-depth explanation of various operational functions and controls.
Flow chart detailing the sequence of operations during cooling and dry modes.
Flow chart illustrating the operational sequence for heating mode.
Details on indoor unit functions, including temperature settings and thermostat control.
Details on outdoor unit functions, including abnormal stops and restart standby procedures.
Criteria and retry counts for abnormal stops to protect system components.
Procedure to prevent frequent compressor ON/OFF and equalize pressure.
Procedures for verifying unit operation and settings after installation.
Instructions for configuring unit settings using the remote controller.
Methods for setting parameters directly on the outdoor unit's PCB.
Modes for operating the unit in emergency situations.
Essential checks before performing test operation and installation.
Verifying remote controller settings and compatibility.
Step-by-step guide for conducting the unit's test run.
Important warnings and considerations before and during the test run.
Troubleshooting common issues encountered immediately after installation.
Detailed procedures for field setting using the wired remote controller (BRC1D528).
Procedures for field setting using the BRC1E52 wired remote controller.
Configuration options for the remote controller (BRC1E) settings.
Steps to change field settings using the wireless remote controller.
Lists setting codes and their descriptions for indoor units.
Summary of field settings available for outdoor units via remote controller.
Automatic setting for low noise operation based on outdoor temperature.
Automatic setting for low noise operation based on outdoor temperature.
Activating quiet operation using an optional PCB.
Function to limit power consumption based on external signals.
Configuration for low humidity applications to increase unit capacity.
Referenced to 'Defrost Operation' on page 48.
Referenced to 'Slow start for EDP applications' on page 54.
Guidelines for performing routine maintenance on the system.
Troubleshooting guide based on observed symptoms of system malfunction.
Diagnosing issues by observing LED status on indoor and outdoor units.
Methods for diagnosing errors using the remote controller's self-diagnosis feature.
Summary of essential inspections to perform during maintenance.
Table listing common symptoms and corresponding troubleshooting pages.
Troubleshooting steps when the unit fails to start or operate.
Diagnosing why the indoor fan runs but the compressor does not.
Troubleshooting when the system starts and then stops abruptly.
Diagnosing why the unit cannot be restarted immediately after shutdown.
Troubleshooting steps when the unit runs but does not cool effectively.
Diagnosing issues when the unit runs but fails to provide heating.
Troubleshooting the discharge of white mist from the unit.
Identifying and resolving causes of excessive noise or vibration.
Troubleshooting dust discharge from the unit.
Diagnosing the meaning and resolution of '88' displayed on the remote controller.
Troubleshooting steps when the swing flap fails to move or operate correctly.
Diagnosing issues by observing LED status on indoor and outdoor units.
Diagnosing indoor unit issues based on LED indicators.
Troubleshooting outdoor unit PCB issues using LED status.
Methods for diagnosing errors using the remote controller's self-diagnosis feature.
Steps to perform self-diagnosis using the remote controller.
Checking and correcting malfunctions or warnings displayed by the BRC1E controller.
Procedure for determining error codes using the wireless remote controller.
List of error codes displayed on the remote controller and their descriptions.
Details of safety devices in the outdoor unit, including pressure switches and fuses.
Details of safety devices in the outdoor unit, including pressure switches and fuses.
Troubleshooting steps for abnormalities related to the indoor unit PCB.
Diagnosing issues with the drain water level system, including float switches.
Troubleshooting abnormal rotation speed of the indoor unit fan motor.
Resolving issues with incorrect capacity settings or missing capacity codes.
Troubleshooting transmission errors between indoor unit PCB and adaptor PCB.
Diagnosing errors related to thermistor disconnection or short circuits.
Troubleshooting humidity sensor errors, including disconnection or short circuits.
Diagnosing malfunctions related to motion or floor temperature sensors.
Troubleshooting errors detected by the remote controller's thermistor.
Diagnosing issues related to the outdoor unit PCB, particularly E2PROM errors.
Troubleshooting high pressure abnormalities detected by the high pressure switch.
Diagnosing errors related to the actuation of pressure sensors.
Troubleshooting steps when the compressor motor is locked.
Diagnosing abnormalities in the outdoor unit fan motor system.
Troubleshooting errors related to the electronic expansion valve.
Managing discharge pipe temperature to prevent high compressor temperatures.
Troubleshooting abnormalities in the high pressure switch system.
Diagnosing issues with the low pressure switch system.
Troubleshooting errors related to thermistor system abnormalities.
Diagnosing abnormalities on the outdoor unit PCB.
Troubleshooting abnormal temperature rise in the radiation fin.
Diagnosing issues related to output overcurrent detection.
Troubleshooting compressor overload detected as electronic thermal time lag.
Diagnosing stall prevention issues related to time lag.
Troubleshooting transmission abnormalities between control and inverter PCBs.
Diagnosing issues related to open phase or power supply voltage imbalance.
Resolving errors caused by defective capacity setting or mismatching PCB types.
Troubleshooting refrigerant shortage alerts, where operation continues.
Diagnosing refrigerant shortage errors, where operation may be affected.
Troubleshooting power supply voltage abnormalities or drops.
Diagnosing transmission errors between indoor and outdoor units.
Troubleshooting transmission errors between the remote controller and indoor unit.
Diagnosing transmission errors when using multiple remote controllers.
Troubleshooting errors related to incorrect field setting combinations or wiring.
Resolving issues with duplicated addresses in centralized control systems.
Troubleshooting transmission errors between centralized controllers and indoor units.
Diagnosing errors related to wiring, piping, or refrigerant issues.
Procedure for checking thermistor resistance and temperature characteristics.
Procedure for checking thermistor resistance and temperature characteristics.
Piping diagrams for the RZQG-L9V1 model.
Piping diagrams for the RZQG-L9V1 model.
Wiring diagrams for the outdoor unit.
Wiring diagrams for the outdoor unit.
Table of thermodynamic properties for R-410A refrigerant.
Step-by-step guide for safely removing the switchbox and its components.
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