MANUFACTURER'S BULLETINS
Daikin Tech Hub App Update 2.0 Now Available — We are pleased to announce the Daikin Tech Hub 2.0 update, delivering improvements in performance, usability, security, and data reliability compared to the previous version. Tech Hub provides Technicians access to manuals, error codes, what they mean, possible causes, troubleshooting flow charts, test to be performed and much, much more. If you don't use Tech Hub to help you Install and/or Service Daikin, Amana & Goodman Inverter equipment, YOU SHOULD!
Daikin Technical Service Bulletin TSB D-GN-MS-0103 -- GFCI Breakers on Single-Phase Inverter Products — This notice provides guidance on the recommended selection of Ground-Fault Circuit Interrupters (GFCI's) for use in compliance with the National Electrical Code (NEC). Beginning in September 2026 (effective dates may vary by state), the installation of a GFCI will be required for outdoor unit installation of single-phase air conditioning equipment with a rated input current of 60a or less. Based on the information currently available to Daikin, the following products have been identified as compliant solutions.
Technical Service Bulletin TSB C-GN-OT-0077 REV 1 -- Revision: Troubleshooting EAF Error Codes — This REVISION 1 expands the message about the EAF error code. Before replacing the furnace control board, read this Technical Service Bulletin. The intent of this bulletin is to inform our customers about troubleshooting the EAF error code, when to leave the default setting or change the default setting on R-32 compliant furnaces and how to do this if necessary.
TSB C-GN-OT-0093 When to Use the Bluetooth® Shared Data Loader (BTSDL01) The intent of this bulletin is to inform Technicians about the use of the Bluetooth Shared Data Loader. The BTSDL01 tool should NEVER be used for any ComfortBridge Models. This bulletin will tell you when to use the Data Loader and when not to.
Applying Thermal Paste Correctly This bulletin is for properly applying Thermal Paste to the Side Discharge Inverter Boards but the steps for applying thermal paste in this bulletin, adapted to the board you are installing, apply to most inverter boards that attach to a heat sink.
R32 Refrigerant Detection System (RDS) Control Board and Sensor Troubleshooting -- The following troubleshooting guide should be used to determine whether there is an RDS board failure, sensor failure, or normal operation. Before replacing the RDS control board, follow this troubleshooting procedure of the board and sensor.
An Over-The-Air (OTA) update is now available to provide support for Heat Recovery Ventilators (HRV)
and Energy Recovery Ventilators (ERV) when the furnace is used with a communicating thermostat, such
as the Daikin One+ and Allow the fan to run if there is a condensate switch trip (float switch trip) during operation...
. The intent of this bulletin is to inform our customers about troubleshooting error codes in general but specifically: EEE, EE5, EbL, EbU, 888, Switching between F02 & F03, furnace grounding & that the 3-digit 7 segment LED shows more information than just error codes
Daikin Tech Hub App Update 2.0 Now Available
We are pleased to announce the Daikin Tech Hub 2.0 update, delivering improvements in performance, usability, security, and data reliability compared to the previous version.
Tech Hub provides Technicians access to manuals, error codes, what they mean, possible causes, troubleshooting flow charts, test to be performed and much, much more.
If you don't use Tech Hub to help you Install and/or Service Daikin, Amana & Goodman Inverter equipment, YOU SHOULD!
This notice provides guidance on the recommended selection of Ground-Fault Circuit Interrupters (GFCI's) for use in compliance with the National Electrical Code (NEC).
Beginning in September 2026 (effective dates may vary by state), the installation of a GFCI will be required for outdoor unit installation of single-phase air conditioning equipment with a rated input current of 60a or less. Based on the information currently available to Daikin, the following products have been identified as compliant solutions.
Technical Service Bulletin TSB C-GN-OT-0077 REV 1 -- Revision: Troubleshooting EAF Error Codes
This REVISION 1 expands the message about the EAF error code. Before replacing the furnace control board, read this Technical Service Bulletin.
The intent of this bulletin is to inform our customers about troubleshooting the EAF error code, when to leave the default setting or change the default setting on R-32 compliant furnaces and how to do this if necessary.