Takagi T?K4?IN User Manual

Troubleshooting
39│Page
ERRORCODES
•
Theunitsareselfdiagnosticforsafetyandconveniencewhentroubleshooting.
• If there is a problem with the installation or the unit, depending on the model or if there is a
remote controller installed, it will either  display a numerical error code on the 7‐Seg LED on the
computerboard(OnlyfortheT‐D2‐IN/OSmodels),displayablinkingred
LED(fortheT‐KJr2‐IN/OS
&T‐K4‐IN/OSmodels),ortheerrorcodewilldisplayontheremotecontrollerifitisinstalled.
• Consultwiththetable onthefollowingpageforthecauseofeacherrorcode.


‐Singleunitinstallations‐

Example:Ifyourunitdisplaysthe“321”errorcode(whichsignifiesaninletthermistorfailure)
• T‐KJr2‐IN/OS & T‐K4‐IN/OS models: The red LED on the computer board will be blinking two
times
• IftheTK‐RE02isinstalled:“32”willdisplayonthescreeninitsentirety.
• T‐D2‐IN/OS models: The 7‐seg. LED on the computer board will display “3”…”2”…”1” in that
orderonedigitatatimeandcontinuallyrepeat.
• IftheTM‐RE30isinstal led:“321”will displayonthescreeninitsentirety.

‐Easy‐Linksystem(FortheT‐D2‐IN/OSmodelsonly)‐
ErrorcodeswilldisplaydifferentlywithunitsinstalledwithinanEasy‐LinkSystem,notonlytoshow
whattheerrorcodeis,buttoalsoindicatewhichunitwithinthesystemhastheerrorcode.Belowis
asampleofhowthesameerrorcodeisdisplayedinanEasy‐Link
System.

Example:
IfUnit#2hasthe“321”errorcode(inletthermistorfailure)
• Parentunit:Itwilldisplay“3”…”2”…”1”…”0”…”2”onedigitatatimeonthe7‐SegLED.Thefirst
3 numbers indicate the error code.The last two numbers indicate that Unit #2 has the error
code.
• Unit #2: It willdisplay “3”…”2”…”1
on the 7‐Seg LED, just like in the
SingleUnitexample.
• Unit#3&#4:Theseunitswill not 
displayanything,astheerrorcode
doesnotpertaintothem.
• TM‐RE30:Itwill display“232”onits
screen.Thefirst“2”indicatesthat
Unit#2hastheerror.The“32”
indicatesthefirsttwodigitsofthe
“321”errorcode.
Errorcodeon
theTM‐RE30
<T‐D2‐IN
/
OS>
Errorcodeonthe
computerboard
7‐SegLED
TM‐RE30
PARENT
CHILD
CHILD
CHILD
Errorcodeon
theTK‐RE02
<T‐KJr2‐IN
/
OS&T‐K4‐IN
/
OS>
Errorcodeonthe
computerboard
RedLED

Takagi T?K4?IN Specifications

General

Brand	Takagi
Model	T?K4?IN
Category	Water Heater
Language	English