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TM 9-4120-367-14
TM 07592B-14/1
m.
Check solenod L2 operation.
1. Apply power.
2. Turn Mode Seledor swich to COOL, and temperature
control to maxinum COOLER.
3. Measure voltage at L2.
Is 22 to 30 Vdc present?
n.
Check solenoid value L2.
1. Apply power.
2. Operator in COOL mode with maximum COOLER
temperature setting.
ls valve olosed when ooil is energized? (HIGH SIDE pressure
higher than LOW SIDE?) and does valve open when coil is not
energized? (HIGH SIDE and LOW SIDE pressures fluctuate?)
Go to temperatlure control S3. Check Step w.
Change solenoid valve L2.
Air conditioner is Operational.
p.
Check Pressure Equalizing Solenoid Valve L2 coil.
1. Remove power.
2. Remove condenser cover.
3. Disconnect Ieads turn valve coil L2.
4. Meassure resistanoe of L2.
Is coil resistance 25 to 50 ohms?
q.
Change selenoind valve L1 coil.
1. Connect leads to new ciol.
r.
Check solenoid L1 operation.
2.
Apply power.
1. Apply power.
Is cooling action effective?
2. Turn Mode Setector switch to COOL and temperture
control to maximum COOLER.
3. Meassure voltage at L1.
Is 22 to 30 Vdc pressent?
Replace cover.
Connect power.
Go to Step s.
Air conditioner is operational.
Go to Step s.
Go to temperature control S3. Check Step w.
4-34
o.
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