Service manual

94 70304901
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Hybrid Timer Control Troubleshooting
37.Motor Will Not Start/Run – OPL Models (continued)
Please see following 2 pages for wiring diagram information.
Is there voltage across
terminals 1 & 4 of
cylinder motor?
Does the cylinder
motor run?
Correct wiring
between cylinder
motor and motor
control relay.
Replace cylinder
motor.
NO
NO
YES
YES
Motors are
operational.
Note: For high voltage three phase supply (380 volts
or higher), the cylinder and fan motors are supplied
by L1, L2, L3 through the motor relay terminals T1,
T2, T3. Make the appropriate adjustments when
doing voltage checks.
(9)
Correct wiring
between fan motor
and motor control
relay.
Replace fan motor.
Correct wiring
between terminal 6
of motor control
relay and supply.
Replace motor
control relay.
NO
NO
NO
NO
Also
next
NO
Correct wiring
between 3, 1 and
power supply.
.
Replace motor
control relay.
YES
Single phase
TMB2020S
TMB2020S