IKONIC Tankless Water Heater Service Manual
66
2.2 ERROR CODE LIST
ERROR CODE DIAGNOSTICS
T115 ERROR CODE
Pump schedule disable - No time received.
If the user interface does not receive the scheduled
time to operate the pump when a schedule has been
set (if installed with a recirculation line) the water heater
displays the “ T115 ” error code) on the user interface.
Diagnostic check
• Schedule setting on recirculation of schedule
mode.
NOTICE: If this error code is displays on the
LCD, recheck the scheduled time setting. To
set the schedule mode for recirculation on
this unit, please refer to section “1.6.4.1.3
Schedule mode”.
T116 ERROR CODE
Manifold unit fault.
If the water heaters are installed in a manifold and
some units in the manifold cannot communicate to the
manager unit, the water heater displays the “ T116 ” er-
ror code on the Liquid Crystal Display (LCD) on the user
interface of manager unit.
Diagnostic check
• Connecting cable between water heaters.
Check method
Remove and reinsert the connecting cable between
water heaters
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