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Troubleshootin
g
Error
Code
Error
Position
Type Name
Cause Solution
Bad heater rod
(boost).
Measure resistance, 23 – 26
Ω, of heater rod, replace if
reading open.
Low chemical supply
temperature.
Recirculate heated chemical
back to drum in cold
conditions before spraying
chemical below 32°F(0°C)
at startup. Use Jog Mode for
heat exchanger heating.
T8DA
T8DB
Boost A
Boost B
ALARM Temperature Not
Rising
Bad heated hose. Measure hose resistance,
replace if reading open.
Started sp
raying before
engine and
hose reached
operating
temperature.
Wait until operating
temperatures have been
reached on engine and hose
before spraying.
T8DH Hose ALARM Temperature Not
Rising
Low chemical supply
temperature.
Recirculate heated chemical
back to drum in cold
conditions before spraying.
Chemical below 32°F(0°C)
at startup.
V1CM MCM
ALARM Bus Under
Voltage
Tripped
MCM circuit
breaker
(CB02).
Visually check circuit
breaker for a tripped
condition. If Diagnostic
screen is enabled, MCM
Bus14Vindicatesnormal
voltage and 1 V indicates
failed MCM.
Loose or bad connection.
Check w
iring for loose wires.
Low generator line
voltage
Measure voltage across
main power switch (CT01).
Voltage should measure
between 190 and 264 VAC.
V1MH Hose ALARM Low Line Voltage
High auxiliary inrush
current.
Ensure compressor or
air dryer are setup to be
continuous run and sized
according to manual.
V4CM MCM
ALARM
Bus O
vervoltage
V4MH Hose ALARM High Line Voltage
Incoming line voltage is
too high.
Measure voltage across
main power switch (CT01).
Voltage should measure
between 190 and 264 VAC.
If voltage is too high, see
supplied alternator manual
for generator specifications
and repair.
Bad connection between
MCM (Port 10) and brush
wear/over temperature
board.
Ch
eck connection and
ca
bles.
WBNM
MC
M
ALARM
Mo
tor Sensor
Fa
ult
Bad brush wear/over
temperature board.
R
eplace Motor. See system
r
epair manual.
3A1705J 87