Takagi T-K3 User Manual

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TROUBLESHOOTING – ERROR CODES
• All Takagi units are self diagnostic for safety and convenience when trouble shooting.
• If there is a problem with the installation or the unit, it will display a numerical error code on the
TM-RE30 (if installed) or on the 7-Seg LED at the bottom left corner of the computer board to
communicate the source of the problem.
• Consult the following chart for the cause of each error code.
Error
Code
Malfunction description
Error
Code
Malfunction description
Error
Code
Malfunction description
031 Dipswitch setting fault 331
Mixing Thermistor
Failure
701 Computer board Fault
101
Warning for 991 Error
Code
391
Air-fuel Ratio Rod
Failure
721 False Flame Detection
111 Ignition Failure 441 Flow Sensor Failure 741
Miscommunication
between T-K3/T-K3-
Pro and TM-RE30
121 Flame blows out 510
Abnormal Main and
Solenoid Gas Valve
761
Miscommunication in
Easy-link
311
Output Thermistor Failure
611 Fan Motor Fault 991 Abnormal burning
321 Inlet Thermistor Failure 651
Flow Adjustment Valve
Fault
Single Unit
• The 7-Seg LED displays the 3-digit error codes one
digit at a time. The TM-RE30 (if installed) displays
the whole 3-digit error code at once.
Example
:
If your unit has the “321” error code (inlet thermistor),
• The 7-Seg LED, will flash the 3-digit error code one
digit at a time. The 7-Seg LED will display “3”...
“2”... “1”, and then repeat the 3 digits.
• The remote controller, however, will display “321”
on its screen, in its entirety.
Easy Link system
• The 7-Seg LED on the Master unit displays a 5-digit
number to signify which unit in the Easy Link System
has the error, and what the error code is. The 7-Seg
LED displays the number one digit at a time.
• The TM-RE30 (if installed) displays a 3-digit number
which also signifies which unit has the error, and what
the error code is.
• The unit that has the error in an Easy Link System will
display the error code on its 7-Seg LED in exactly the
same way as if it were only a Single Unit.
Example:
If Unit #2 has the “321” error code (inlet thermistor),
• The 7-Seg LED on the Master unit will display “3”...
“2”… “1”… “0”… “2”, displaying only one digit at a
time. The first 3 numbers indicate the error code.
The last two numbers indicate that Unit #2 has the
error.
• The remote controller, however, will display “232” on
its screen in its entirety. The first “2” indicates that
Unit #2 has the error. The “32” indicates the first two
digits of the “321” error code.
• The 7-Seg LED on Unit #2 will display “3”…. “2”….
“1”, just like in the Single Unit example.
TM-RE30 (Optional)
7-Seg LED
Remote

Takagi T-K3 Specifications

General

Type	Tankless
Installation Type	Indoor
Maximum BTU Input	199, 000 BTU/h
Gas Connection Size	3/4"
Vent Size	3"
Hot Water Flow Rate (at 35°C rise)	6.6 GPM
Maximum Input	199, 000 BTU/h