Installation Guide and Manual

15
SOFTWARE FEATURES
Notifications:
Code
Name
Unit behavior
Action
B005
Inlet thermistor disconnected
Heating enabled based on default
parameters and history data.
Check thermistor connections. Check
parameter P000 and adjust if needed.
C010
Outlet thermistor disconnected
Heating enabled without calibration.
Check outlet thermistor connection.
B015
Inlet AND outlet thermistors
disconnected
Heating enabled based on default
parameters and history data.
Check thermistor connections. Check
parameter P000 and adjust if needed.
B050
Current transformer disconnected
Heating enabled based on default
parameters. Limited self-diagnostic
capabilities.
Check current transformer connections.
C070
Channel 1 element outside
tolerance, LOW kW rating
Unit runs as intended, attempting to
compensate.
Replace heating element.
C073
Channel 2 element outside
tolerance, LOW kW rating
C076
Channel 3 element outside
tolerance, LOW kW rating
B071
Channel 1 element outside
tolerance, LOW kW rating
Heating disabled on the associated
channel.
B074
Channel 2 element outside
tolerance, LOW kW rating
B077
Channel 3 element outside
tolerance, LOW kW rating
B080
Channel 1 not heating
Heating disabled on the associated
channel.
Check element(s). Check SSR connections.
Check contactor.
B083
Channel 2 not heating
B086
Channel 3 not heating
A090
All channels off
Heating disabled.
Check for tripped ECOs. Check elements.
Check SSR connections. Check contactor.
B105
Inlet temperature 180-200F
Heating disabled while condition is
present.
Check water supply temperature.
B106
Inlet temperature above 200F
Heating disabled. Heating resumes after
condition disappears, with a delay.
B107
Inlet temperature higher than
setpoint
Unit runs as intended.
B110
Outlet temperature too high (>20F
above setpoint)
Heating disabled while condition is
present.
Check elements. Check incoming voltage.
Check SSRs functionality.
C115
Inlet or outlet temperature too low
Unit runs as intended. Heating not
disabled. Unit freezing and damage
possible.
Check water supply temperature. Verify
installation location temperature to be
above freezing point.
D130
Flow too high
Unit runs as intended. Heating not
disabled.
Consider upgrading the unit or reducing
flow.