Daikin SkyAir FBQ30PVJU User Manual

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Servi ce

Manual

Cooling Only 60 Hz

Heat Pump 60 Hz

RZR-TA, RZQ-TA Series

SiUS281811EA

Table of Contents

Other manuals for Daikin SkyAir FBQ30PVJU

Engineering Data238 pages

Questions and Answers:

Z
Zachary MosleyAug 9, 2025
Why is my Daikin Heat Pump not cooling or heating air well?
- S
  Stephanie KingAug 9, 2025
  If your Daikin Heat Pump isn't cooling or heating well, several factors could be at play. Check for blocked air inlets or outlets on both the indoor and outdoor units and remove any obstructions. Ensure the air filters are clean. Also, make sure the outdoor unit isn't enclosed. Verify that the temperature is set correctly and the airflow rate isn't set to low. Adjust the direction of air diffusion if needed. Close any open windows or doors, and use curtains or shades to block direct sunlight. Finally, consider if there are too many people in the room, as the unit's capacity might not be sufficient.
J
James HowardAug 14, 2025
How to fix a Daikin Heat Pump that does not start?
- B
  Blake RamseyAug 14, 2025
  If your Daikin Heat Pump system isn't starting, the issue might be related to the power supply. Check for blown fuses and, after turning OFF the power, replace them if necessary. Also, inspect the breakers. If a breaker knob is in the OFF position, turn the power supply ON. However, if a circuit breaker knob is in the tripped position, do not attempt to turn the power supply ON.
C
Crystal McfarlandAug 20, 2025
What to do if Daikin Heat Pump starts then stops?
- T
  Tamara HowardAug 20, 2025
  If your Daikin Heat Pump starts but stops immediately, it might be due to a blockage. Ensure that neither the air inlet nor the outlet of the indoor or outdoor unit is blocked by any obstacles; if there are any, remove them. Another possible cause is clogged air filters, so be sure to clean them.
J
jlaneAug 27, 2025
Why does my Daikin Heat Pump not operate?
- P
  patriciamcdonaldAug 27, 2025
  If your Daikin Heat Pump isn't operating, observe the OPERATION lamp on the remote controller. If it turns ON, the system is likely normal and is managing loads. If the remote controller displays "UNDER CENTRALIZED CONTROL" blinking when you press the OPERATION button, operate the system using the COOL/HEAT centralized remote controller. If the system stops immediately after turning ON the power, allow approximately 1 minute for it to start.
A
Alyssa SullivanSep 2, 2025
How to stop odors coming from Daikin Heat Pump?
- A
  Andrew MarquezSep 2, 2025
  If you notice odors coming from your Daikin Heat Pump, the inside of the indoor unit likely needs cleaning.

Daikin SkyAir FBQ30PVJU Specifications

General

Model	FBQ30PVJU
Series	SkyAir
Brand	Daikin
Power Supply (Indoor Unit)	220-240V, 50Hz
Power Supply (Outdoor Unit)	220-240V, 50Hz
Refrigerant	R32
Indoor Unit Weight	9 kg
Type	Air Conditioner
Energy Efficiency Rating (Heating)	A+
Operating Temperature Range (Heating)	-15°C to 24°C
Noise Level (Indoor)	29 dB(A)

Summary

Introduction

1. Safety Cautions

Detailed safety guidelines for workers and users, including warnings and precautions.

Part 1 General Information

3. Specifications

Detailed technical specifications for cooling-only and heat pump models.

Part 2 Refrigerant Circuit

1. Refrigerant Circuit (Piping Diagrams)

Illustrates refrigerant piping diagrams for different unit series.

Part 3 Remote Controller

6. Service Settings Menu, Maintenance Menu

Part 4 Functions and Control

4. Protection Control

Describes safety mechanisms and protection controls for the system.

Part 5 Field Settings and Test Operation

1. Field Setting from Remote Controller

Guides on configuring indoor unit settings using the remote controller.

2. Field Settings from Outdoor Unit

Details how to perform settings on the outdoor unit's PCB.

3. Test Operation

Procedures for conducting initial test operations after installation.

Part 6 Service Diagnosis

1. Servicing Items to be Confirmed

4.29 Activation of High Pressure Switch

Details the conditions and troubleshooting for high-pressure protection activation.

2. Symptom-based Troubleshooting

Provides a guide to diagnosing issues based on observed symptoms.

4.30 Activation of Low Pressure Sensor

Explains low-pressure sensor activation errors and their troubleshooting.

3. Troubleshooting with Remote Controller

Explains how to troubleshoot based on error codes and messages displayed on the remote controller.

4.31 Inverter Compressor Motor Lock

Covers troubleshooting for inverter compressor motor lock issues.

4. Troubleshooting by Error Codes

Comprehensive guide to identifying and resolving system errors based on specific codes.

4.33 Electronic Expansion Valve Coil Abnormality, Dust Clogging

4.34 Discharge Pipe Temperature Abnormality

4.35 Refrigerant Overcharged

Procedures for identifying and rectifying refrigerant overcharge conditions.

4.37 High Pressure Sensor Abnormality

Steps for diagnosing high-pressure sensor abnormalities.

4.38 Low Pressure Sensor Abnormality

4.39 PCB (for Inverter Compressor) Abnormality

4.41 Inverter Compressor Instantaneous Overcurrent

Troubleshooting instantaneous overcurrent issues in the inverter compressor.

4.42 Inverter Compressor Overcurrent

Procedures for diagnosing inverter compressor overcurrent faults.

4.43 Inverter Compressor Startup Abnormality

4.44 Transmission Error (Between Microcomputers on the Outdoor Main PCB)

4.47 Refrigerant Shortage

4.48 Power Supply Insufficient or Instantaneous Abnormality

4.49 Check Operation Not Executed

4.50 Transmission Error between Indoor Units and Outdoor Units

4.51 Transmission Error between Remote Controller and Indoor Unit

4.52 Transmission Error between Main and Sub Remote Controllers

4.53 Transmission Error between Indoor and Outdoor Units in the Same System

4.54 Improper Combination of Indoor and Outdoor Units, Indoor Units and Remote Controller

4.56 Address Duplication of Centralized Controller

4.57 Transmission Error between Centralized Controller and Indoor Unit

Check

5.1 High Pressure Check

Procedure for checking high pressure conditions in the system.

5.2 Low Pressure Check

Steps for diagnosing low pressure conditions in the system.

5.3 Superheat Operation Check

5.4 Power Transistor Check

5.5 Refrigerant Overcharge Check

Method for checking refrigerant overcharge.

5.6 Refrigerant Shortage Check

How to check for refrigerant shortage.

5.7 Vacuuming and Dehydration Procedure

Steps for vacuuming and dehydrating the refrigerant system.

5.8 List of Inverter-Related Error Codes

5.10 Thermistor Check

5.11 Pressure Sensor Check

5.13 Fan Motor Connector Check

5.14 Electronic Expansion Valve Coil Check

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