21
CHECK
FOR:
1. Broken or loose
wire.
2. Defective pressure
switch.
3. Defective ON/OFF
switch.
4. Excessive voltage
drop across power
lines.
Is there suf
ficient
voltage at motor
terminals when
motor tries to start?
GO ON T
O
THE NEXT
P
AGE
COMPRESSOR
DOES NOT RUN
OR RUNS FOR
ONL
Y A FEW
SECONDS
YES
Is room
temperature
above 40
o
fahr
.?
YES
Does head
run with dis-
charge line
disconnected?
Increase
room temp.
NO
Blockage in
air line.
Locate &
repair
YES
YES
NO
YES
Does motor run
after tapping
capacitor/relay box
or does start
capacitor feel hot?
NO
YES
Is there continuity
across terminal 2 & 5
or potential relay?
NOTE:
1. T
ape relay box.
If starts, relay is bad.
2. Check for continuity
across 2 & 5.
Replace
if
none.
Wiring Diagram
Dual Ultra Clean Lubricated Compressor
NO
Is there
suf
ficient
voltage at
disconnect
box?
NO
Install
Tech W
est
transformer
NOTE:
V
oltage
should be + or -
10% of rating.
Is there resistance
rise across the
capacitors?
Is there continuity
across the thermal
protector?
Contact T
ech W
est.
Head may be frozen.
YES
YES
Replace
defective
potential
relay
YES
NO
Replace
defective
capacitors
NO
Replace
defective
thermal
protector
NOTE:
Short capacitor leads.
Check resistance
rise. If no resistance
rise, replace.
Summary of Contents for ACL2S1
Page 2: ......
Page 4: ...Maintenance Service Notes 2...
Page 19: ...17 Figure 5 Compressor Wiring Diagram...
Page 26: ...24 Maintenance Service Notes...
Page 27: ...25 Maintenance Service Notes...
