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Micro Display Control Troubleshooting
53.Motor Will Not Start/Run (continued)
Please see following 2 pages for wiring diagram information.
Is there voltage across
term
inals 1 & 4 of
cylinder m
otor?
Does the cylinder
m
otor run?
Correct wiring
between cylinder
m
otor and m
otor
control relay.
Replace cylinder
m
otor.
NO
NO
YES
YES
M
otors are
operational.
Note: For high voltage three phase supply (380 volts
or higher), the cylinder and fan m
otors are supplied
by L1, L2, L3 through the m
otor relay te
rm
inals T1,
T2, T3. M
ake the appropriate a
djustm
ents when
doing voltage checks.
(9)
Correct wiring
between fan motor
and m
otor control
relay.
Replace fan m
otor.
Correct wiring
between term
inal 6
of m
otor control
relay and supply.
Replace m
otor
control relay.
NO
NO
NO
NO
Also
n next
NO
Correct wiring
between L2, L3 and
supply.
Replace m
otor
control relay.
YES
Single phase
TMB251S