Install Instructions
Troubleshooting
43│Page
T‐H2‐SV/T‐H2‐OS
ERRORCODES
•
T‐H2‐DV/T‐H2‐OSunitsareselfdiagnosticforsafetyandconveniencewhentroubleshooting.
• Ifthereisaproblemwiththeinstallationortheunit,itwilldisplayanumericalerrorcodeonthe3‐
digit7‐Seg.LEDonthecomputerboard(visiblethroughawindowonthefrontcover)orTM‐RE30(if
installed)tocommunicatethesourceoftheproblem.
• Consultthetableonthefollowingpageforthecauseofeacherrorcode.
‐Singleunitinstallations‐
The7‐SegLEDandTM‐RE30displaysthewhole3‐dig iterrorcode.
Example
:Ifyourunithasthe“321”errorcode(inletthermistorfailure)
• Waterheater:Itwilldisplay“321”onthe7‐SegLED.
• TM‐RE30:Itwill display “321”onitsscreen.
‐Easy‐Linksystem‐
The7‐SegLEDoftheindividualunitwiththeerrorinquestiondisplaysthewhole3‐digiterrorcode.
TheTM‐RE30(ifinstalled)displaysa3‐digitnumberwhichsignifieswhichunithastheerror,andwhat
theerrorcodeis.
Example:
IfUnit#2hasthe“321”errorcode(inletthermistorfailure)
• Waterheater#2:Itwilldisplay“321”onthe7‐SegLED,justlikeintheSingleUnitexample.
• TM‐RE30:Itwill display “232”onitsscreen.Thefirst“2”indicatesthatUnit#2hastheerror.The
“32”indicatesthefirsttwodigitsofthe“321”errorcode.
Errorcodeonthecomputerboard
7‐SegLED
ErrorcodeontheTM‐RE30
TM‐RE30
Unit#1
MASTER
unit
Unit#2
SLAVEunit
Unit#3
SLAVEunit
Unit#4
SLAVEunit