Will Not Run - Electric - Manual Timer - ALLIANCE T30 Series Troubleshooting Manual

33. Will Not Run – Electric – Manual Timer
With and without time delay boards.
Single and stacked units.
Single and three phase power supply.
Is there voltage at
terminal C on the
drying timer?
YES
Is there voltage at
terminal B on the
drying timer?
YES
Is there voltage across
terminals 7 and 8 of
CR1 relay?
YES
Is there voltage across
terminal 3 and 5 of
CR1 relay?
NO
Is there voltage
across terminals 2A
& 1A of push to
start switch?
NO
NOTE: The N.O. contact is closed in the rest
**
Is there voltage across
COM and N.O. of
the airflow switch?
NO
** Tested with the start switch pressed in.
70291301
Correct wiring
NO
between drying
timer and lint panel
switch.
NOTE: make sure drying
timer is in the "on"
position.
NO
Replace drying
timer.
Correct the wiring
NO
between CR1 relay
and terminal B on
drying timer.
YES
Replace CR1 relay.
NOTE: This test to be
made with push to start
switch pressed in.
YES
Replace push to
start switch.
position due to the physical
mounting of the switch.
Adjust the airflow
YES
switch or replace if
inoperative.
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Is the unit equipped
NO
with a time delay
Is there voltage across
H1-6 & H1-8 on
Is there voltage across
terminals H1-4 &
Is there voltage across
DOB contacts on
Is there voltage across
terminals 7 & 8 of
Is there voltage across
terminals 5 & 3 on
the CR2 relay?
CONTINUED
Is there voltage across
YES
ON NEXT
coils B & A of the
motor control relay?
PAGE.
Electronic Control Troubleshooting
board?
YES
NO
Correct wiring to
TMR1?
YES
**
Check for proper
NO
H1-8 on TMR2?
YES
**
YES
TMR2?
NO
**
Correct wiring
NO
between CR2
relay and
CR2 relay?
airflow switch.
YES
YES
Replace CR2
NO
** Correct wiring
between motor
NO
control relay
and airflow
TMR1.
operation of
airflow switch.
Replace time
delay board.
relay.
switch.
T051D
T051D
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