Fujitsu AOTG24KMTC User Manual

SPLIT TYPE
ROOM AIR CONDITIONER
WALL MOUNTED
type
Models Indoor unit Outdoor unit
INVERTER
ASTG18KMTC
ASTG22KMTC
ASTG24KMTC
AOTG18KMTC
AOTG22KMTC
AOTG24KMTC
1810S012802
2019.02.27
SERVICE
INSTRUCTION

Fujitsu AOTG24KMTC Specifications

General

Brand	Fujitsu
Model	AOTG24KMTC
Category	Air Conditioner
Language	English

Summary

Description of Each Control Operation

Cooling Capacity Control

Details compressor control based on room temperature and outdoor conditions.

Heating Operation

Heating Capacity Control

Explains compressor control in heating mode based on room temperature.

Auto Changeover Operation

Indoor Fan Control

Heating Operation

Defrost Operation

Condition of Starting the Defrost Operation

Condition of the Defrost Operation Completion

Defrost Flow Chart

Outdoor Fan Control

Compressor Control

Opeartion Frequency Range

Opeartion Frequency Control At Start Up

Timer Opeartion Control

Electronic Expansion Valve Control

Test Operation Control

Prevent to Restart for 3 Minutes (3 Minutes ST)

Auto Restart

Manual Auto Operation (Indoor unit body operation)

Forced Cooling Operation

Human Sensor

Powerful Operation

Off Defrost Opeartion Control

Off Defrost Operation Condition

Off Defrost End Condition

Various Protections

Discharge Gas Temperature Overrise Prevention Control

Current Release Control

Antifreezing Control (Cooling and Dry mode)

Cooling Pressure Overrise Protection

High Temperature Release Control (Heating Mode)

Demand Response Operation

Trouble Shooting

Error Display

Wireless LAN Indicator Display

Mobile App Display (For Air Conditioner)

2. Error Code

Mobile App Display (In Wireless LAN Control system)

1. Error Display

2. Error Messages List

Trouble Shooting With Error Code

Trouble shooting 1-1 Outdoor Unit Error Method: Serial communication error (Serial Reverse Transfer Error)

Troubleshooting steps for outdoor unit serial communication errors.

Trouble shooting 1-2 Indoor Unit Error Method: Serial communication error (Serial Forward Transfer Error)

Troubleshooting for indoor unit serial communication errors.

Trouble shooting 2 Indoor Unit Error Method: Wired remote controller communication error

Troubleshooting for wired remote controller communication errors.

Trouble shooting 3 Outdoor Unit Error Method: Combination error

Trouble shooting 4 Indoor Unit Error Method: Indoor unit PCB model information error

Trouble shooting 5 Indoor Unit Error Method: Manual auto switch error

Trouble shooting 6 Indoor Unit Error Method: Room temp. sensor error

Troubleshooting for room temperature sensor errors.

Trouble shooting 7 Indoor Unit Error Method: Indoor unit Heat Ex. Middle temp. sensor error

Troubleshooting for indoor heat exchanger sensor errors.

Trouble shooting 8 Indoor Unit Error Method: Indoor unit fan motor error

Troubleshooting for indoor unit fan motor errors.

Trouble shooting 9 Outdoor Unit Error Method: Outdoor unit main PCB model information error

Trouble shooting 10 Outdoor Unit Error Method: Inverter error

Troubleshooting for inverter errors.

Trouble shooting 11 Outdoor Unit Error Method: PFC circuit error

Troubleshooting for PFC circuit errors.

Trouble shooting 12 Outdoor Unit Error Method: Trip terminal L error

Trouble shooting 13 Outdoor Unit Error Method: Discharge temp. sensor error

Troubleshooting for discharge temperature sensor errors.

Trouble shooting 14 Outdoor Unit Error Method: Outdoor unit Heat Ex. liquid temp. sensor error

Troubleshooting for outdoor heat exchanger liquid temp sensor errors.

Trouble shooting 15 Outdoor Unit Error Method: Outdoor temp. sensor error

Troubleshooting for outdoor temperature sensor errors.

Trouble shooting 16 Outdoor Unit Error Method: Current sensor error

Troubleshooting for current sensor errors.

Trouble shooting 17 Outdoor Unit Error Method: High Pressure Switch Error

Troubleshooting for high pressure switch errors.

Trouble shooting 18 Outdoor Unit Error Method: Trip detection

Trouble shooting 19 Outdoor Unit Error Method: Compressor rotor position detection error

Troubleshooting for compressor rotor position detection errors.

Trouble shooting 20 Outdoor Unit Error Method: Outdoor unit fan motor error

Troubleshooting for outdoor unit fan motor errors.

Trouble shooting 21 Indoor Unit Error Method: 4-way valve error

Troubleshooting for 4-way valve errors.

Trouble shooting 22 Outdoor Unit Error Method: Discharge temp. error

Troubleshooting for discharge temperature errors.

Trouble Shooting With No Error Code

Trouble shooting 23 Indoor unit - No Power

Troubleshooting steps for indoor unit with no power.

Trouble shooting 24 Outdoor unit - No Power

Troubleshooting steps for outdoor unit with no power.

Trouble shooting 25 No Operation (Power is ON)

Troubleshooting for no operation when power is on.

Trouble shooting 26 No Cooling / No Heating

Troubleshooting for no cooling or heating.

Trouble shooting 27 Abnormal Noise

Trouble shooting 28 Water Leaking

Trouble Shooting With Error Code (For Wireless LAN Adapter)

Trouble shooting 29 Indoor Unit Error Method: External Communication Error (Communication Error of between Indoor Unit to Wireless LAN adapter)

Troubleshooting external communication errors for wireless LAN.

Trouble shooting 30 Indoor Unit Error Method: Network Communication Error (Communication Error of between Wireless LAN Router to Wireless LAN adapter)

Troubleshooting network errors between router and adapter.

Trouble shooting 31 Indoor Unit Error Method: Network Communication Error (Communication Error of between Wireless LAN Router to Wireless CLOUD)

Troubleshooting network errors between router and cloud.

Trouble shooting 32 Indoor Unit Error Method: Communication Error ("Trou. 29, 30" and "Trou. 31" are simultaneous Error)

Troubleshooting simultaneous communication errors.

Trouble shooting 33 Indoor Unit Error Method: Wireless LAN adapter Non-Energized

Troubleshooting wireless LAN adapter power issues.

Air Conditioning De-registration Method

Air conditioner registration Paring Method

Service Parts Information

Service Parts Information 1 Compressor

Service Parts Information 2 Inverter Compressor

Service Parts Information 3 Outdoor unit Electronic Expansion Valve (EEV)

Service Parts Information 4 Indoor unit fan motor

Service Parts Information 5 Outdoor unit fan motor