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

35. Will Not Run – Gas – Manual Timer
No motor run (run circuit).
Single and stacked units with and without
time delay boards.
Is there voltage at
terminal c on the
drying timer?
YES
NOTE: make sure drying
timer is in the "on"
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
NOTE: This test to be
made with push to start
switch pressed in.
Is there voltage
across terminals 2A
& 1A of push to
start switch?
NO
NOTE: The N.O. contact is closed in the rest
position due to the physical mounting
**
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.
position.
NO
Replace drying
timer.
Correct the wiring
NO between CR1 relay
and terminal b on
drying timer.
YES
Replace CR1 relay.
YES
Replace push to
start switch.
of the switch.
Adjust the airflow
YES
switch or replace if
inoperative.
CONTINUED
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PAGE.
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Electronic Control Troubleshooting
Is the unit equipped
NO
with a time delay
board?
YES
Is there voltage across
H1-6 & H1-8 on
TMR1?
YES
**
Is there voltage across
terminals H1-4 &
H1-8 on TMR2?
YES
**
Is there voltage across
DOB contacts on
TMR2?
NO
**
Is there voltage across
terminals 7 & 8 of
CR2 relay?
YES
Is there voltage across
terminals 5 & 3 on
the CR2 relay?
NO
**
YES
Is there voltage across
coils B & A of the
motor control relay?
NO Correct wiring to
TMR1.
Check for proper
NO
operation of
airflow switch.
YES
Replace time
delay board.
Correct wiring
NO between CR2
relay and
airflow switch.
YES
Replace CR2
relay.
Correct wiring
between motor
NO
control relay
and airflow
switch.
T042D
T042D
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