NTI TRX085 - Page 115

115
TRX Series II - Installation - Startup - Maintenance Instructions
Table 45 - Boiler Error Codes
Important
Contact a qualified service technician for assistance if a Lockout Error occurs frequently. For safety reasons, the boiler will permit a maximum of five (5) resets
in 15 minutes (five [5] presses of the RESET button). A sixth (6th) attempt within this 15 minute period will lock out the boiler permanently. The boiler will only
operate again after the electrical supply has been disconnected and reconnected.
Repeated Lockout Error conditions could indicate a serious error with the boiler or installation. Failure to contact a qualified service technician to troubleshoot
the error could result in substantial property damage, serious personal injury, or death.
*Error is resettable remotely via NTI Tele-Diagnostic Service, NTI Remote Contractor.
General
symptoms
Symptoms
Possible cause
based on priority
Possible Remedies
3Way valve Stuck
Improper piping or boiler
commissioning
If the 3 way valve becomes stuck, verify the piping per the
diagram in the installation manual. Remove any pumps or check
valves not shown in the diagram.
To unstick the valve: Lower the boiler pressure to 5PSI or less, then
unplug the boiler and plug it back in and observe that the valve
moves up and down 3/8" WHILE THE BOILER STARTS UP. If not
using the DHW connection, remove the diverting valve plug once
the valve reaches the top of its stroke.
Water hammer
noise
A harsh bang in the water
piping when changing from
heating to hot water
Anti water hammer feature
turned off
Set Menu 2.10.6 = 1 . If menu 2.10.16 is not available replace the
PCB and the Screen.
Old software
Check menu 8.5.5 if the software version is: 00.44.03 or 00.44.01,
00.85.00, 00.98.00, 01.01.00 replace the PCB for system boiler
Check menu 8.5.5 if the software version is: 00.44.03 or 00.44.01,
00.85.00 replace the PCB for combi boiler
3Way Valve noise
The 3 way valve seats at the
end of each cycle
Change setting 2.1.2
Set parameter 2.1.2 = 4.
Check menu 8.5.5 if the software version is: 00.44.03 or 00.44.01,
00.85.00, 00.98.00 replace the PCB.
Heating: Boiler
starts without
request
Incorect wiring
Remove wiring from TT1, and TT2, If problem perists perform a
factory reset with Menu 2.8.0
Part 13 - Troubleshooting