CHART 2102. TROUBLESHOOTING (AIR CONDITIONING SYSTEM)
Trouble Cause Remedy
Condenser door will not Faulty relay K-2. Replace relay.
close when air conditioner
switch is in OFF
position.
System produces no Electrical
cooling.
Blown fuse in control head. Replace fuse
Open circuit breaker. Reset circuit breaker.
Broken or disconnected Check all terminals for loose
electrical wire. connections; check wiring for
hidden breaks.
Broken or disconnected Check ground wire to see if
ground wire. loose, broken, or discon
nected.
Clutch coil burned out or Check current flow to clutch.
disconnected. replace if inoperative.
Thermostat sensing element Check thermostat and cabin
defective, comfort control panel.
Blower motor disconnected Check current-flow to blower
or burned out. motor. Repair or replace if
inoperative.
Mechanical
Loose or broken drive belt. Replace drive belts or
tighten to specifications.
Compressor partially or Remove compressor for
completely frozen. service or replacement.
Expansion valve stuck in Replace expansion valve.
open position.
21 - 52 - 00
Page - 21 - 06
Reissued: August 1, 1986
1F20
PIPER AIRCRAFT
PA-28-236
MAINTENANCE MANUAL
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