Troubleshootin
g
Error Location Type Description
Cause Solution
Mis-adjusted
24 VDC power
supply.
Measure volta
ge of power supply.
Voltage shoul
d be 23-25 VDC. If out
of tolerance,
adjust output voltage to
approximatel
y24VDC.
Short circuit
or intermittent
connection in
wiring.
Reference schematics in repair
manual. Trace all CAN cables and
check all connections.
V2IT
TCM
Low Voltage
CAN
Bad24VDC
power supply.
If voltage can not be adjusted back
into tolerance range, replace power
supply.
Loose
connection or
tripped circuit
breaker.
Check wir
ing for loose connection or
tripped c
ircuit breaker.
V2MA
TCM
Low Voltage A
Low incom
ing
line vol
tage.
Measure v
oltage at circuit breaker
and ensu
re voltage is greater than
195 VAC.
Loose
connection or
tripped circuit
breaker.
Check wiring for loose connection or
tripped circuit breaker.
V2MB
TCM
Low Voltage B
Low incoming
line voltage.
Measure voltage at circuit breaker
and ensure voltage is greater than
195 VAC.
Loose
conne
ction or
trip
ped circuit
brea
ker.
Check wiring for loose connection or
tripped circuit breaker.
V2MH
TCM
Low Vo
ltage
Hose
Low incoming
line voltage.
Measure voltage at circuit breaker
and ensure voltage is greater than
195 VAC.
V3IT
TCM
High Voltage
CAN
Bad
24 VDC
pow
er supply.
Che
ck voltage of power supply.
Vol
tage should be 23-25 VDC. If out
of t
olerance, replace power supply.
Incoming line
voltage is too
high.
Ensure incoming system power is
wired properly. Verify voltage at
each circuit breaker is between 195
and 264 VAC.
V3MA
TCM
High Voltage A
G
enerator is set
t
o a high-leg delta
c
onfiguration.
I
f the generator is wired in a high-leg
d
elta configuration and is consistently
c
ausing this error, change generator
c
onfiguration to 208 VAC wye (star).
Contact Graco Technical Assistance.
40 333024N
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