Manual

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Red LED
~ WATER HEATER ~
PROBLEM POSSIBLE SOLUTIONS
Unit does not ignite when water
goes through the unit.
• Is the flow rate over 0.5 GPM? (p. 21)
• Check for the filter on cold water inlet. (p. 24)
• Check for reverse connection and cross connection.
• If you use the remote controller, is the power button
turned on? (p. 21)
The fan motor is still spinning after
operation has stopped.
• This is normal. After operation has stopped, the fan
motor keeps running from 5 to 50 seconds in order
to re-ignite quickly, as well as purge all the exhaust
gas out of the flue.
Abnormal sounds come from the
unit.
• Contact TAKAGI.
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
TK-RE02 (if installed). If the TK-RE02 is not installed, the red LED at the bottom- right corner of
the computer board will be blinking to communicate the source of the problem instead.
• Consult the following chart for the cause of each error code.
Red LED Error code Malfunction description
03 Dipswitch settings fault
Blinking One Time
70 Computer board Fault
31 Outlet thermistor Failure
32 Inlet thermistor Failure
Blinking Two Times
39 Air-fuel Ration Rod Failure
11 Ignition Failure
12 Flame blows out
51 Abnormal Gas Solenoid Valve
55 Abnormal Gas Main Valve
72 False Flame Detection
Blinking Three Times
99 Abnormal burning
Blinking Four Times 61 Fan Motor Fault
Blinking Five Times 10 Warning for the “99” error code
OFF 74
Miscommunication between T-K3-OS(SP) and
temperature remote controller
Always ON 74 MCU failure