Takagi T-H3M-IN/OS - Manual (Page 45)

45
Page
Error code
Green LED
Error code indicator on the temperature
controller attached to a surface of the 140
Indoor (T-H3M-DV) model and the remote
controller 9008172005 (TM-RE40).
ERROR CODES
-General-
• The water heater has self-diagnostics for safety and convenience when troubleshooting
• If there is a problem with the water heater itself, or the installation of the unit, the error code will be
displayed on the temperature controller and remote controller
• Consult with the table on the following pages for the description of each error code
Example: If your unit has the “321” error code (which signifies an inlet thermistor failure)
• Indicator on the controller : “321” will be displayed on the screen in its entirety
• Green LED on the computer board: The green LED on the computer board will be
blinking two times
Troubleshooting
Owner's Guide