Troubleshooting
Error Location Type Description
Cause Solution
Flow is too high at
current setpoint.
Use a smaller mix chamber
that is rated for the unit
in use. If recirculating,
decrease flow or decrease
tempera ture setpoint.
Bad RTD or bad
RTD placement
against heater.
Swap A and B heater output
cables and RTD cables and
see if issue follows. If so,
replace RTD.
T2DB Heater B Lo w Tem perature B
Bad heater rod or
loose heater wire.
Confirm resistance of
heater. Heater resistance
shouldbe9-12Ωfor10
kW systems and 6-8 Ω
for 15 kW systems. If out
of tolerance, check for
loose h eater rod wire(s).
Reconnect wires or replace
heater rod if necessary.
Flow is too high at
current setpoint.
Use a smaller mix chamber
that is rated for the unit
in use. If recirculating,
decrease flow or decrease
tempera ture setpoint.
T2DH Hose Low Tem perature
Hose
Cold c hemical in
unheated portion
of system passed
hose FTS at
startup.
Recirculate heated
chem ical bac k to drum
in cold c ond itio ns b efo re
startup.
Recirculate fluid through
heaters until inlet fluid
tempera ture is above
defined error level.
T2FA
MCM
Low T emperature
Inlet A
Inlet fluid
temperature is
below the defined
level.
Increase the low
tempera ture deviati on
level on the System Setup
screen.
Recirculate fluid through
heaters until inlet fluid
tempera ture is above
defined error level.
T2FB MCM Low Temperature
Inlet B
Inlet fluid
temperature is
below the defined
level.
Increase the low
tempera ture deviati on
level on the System Setup
screen.
333024F 25
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