Mazda 1983 RX7 Service Manual page 61

NORMAL NORMAL
to
HIGH
LOW LOW
LOW LOW
LOW LOW
LOW LOW
LOW HIGH
HIGH LOW
HIGH LOW
HIGH HIGH
HIGH HIGH
HIGH HIGH
(1) - If equipped with a low refrigerant charge protection system,
compressor operation may have stopped.
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ
END OF ARTICLE
A/C SYSTEM GENERAL DIAGNOSTIC PROCEDURES
Article Text (p. 5)
For www.iluvmyrx7.com
Copyright © 1998 Mitchell Repair Information Company, LLC
Sunday, August 26, 2001 04:42PM
and on too rapidly.
Cycling clutch systems only -
compressor doesn't turn on
soon enough. Discharge air
becomes warm as low side
pressure rises.
Bubbles in sight glass.
Outlet air slightly cool.
Sight glass clear. Outlet
air very warm.
Outlet air slightly cool.
Sweating or frost at
expansion valve.
Outlet air slightly cool.
High side line cool to touch.
Sweating or frost on high
side.
Evaporator outlet pipe cold.
Low side goes into vacuum
when blower is disconnected.
Evaporator outlet pipe warm.
Outlet air warm.
Noise from compressor.
Outlet air warm. Liquid
line very hot. Bubbles in
sight glass.
Outlet air slightly cool.
Bubbles in sight glass.
Outlet air warm. Evaporator
outlet sweating and frost.
1983 Mazda RX7
Switch
Misadjusted
Thermostatic
Switch or
Defective
Pressure
Sensing Switch
Low R-12
Charge
Excessively
Low R-12
Charge
Expansion
Valve Stuck
Closed Screen
Plugged or
Sensing Bulb
Malfunction
Restriction
on High Side
STV Stuck
Open
STV Stuck
Closed
Compressor
Malfunction
Compressor
Malfunction
or R-12
Overcharge
Large Amount
of Air and
Moisture in
System
Expansion
Valve
Stuck Open