Plymouth Valiant V-100 1965 Service – Technical Manual page 670

GROUP 24
AIR C O N D I T I O N I N G
CONTENTS
Page Page
DESCRIPTION
.........................
1
SERVICE PROCEDURES
. . . . . . . . . . . . . . . . . .
22
SERVICE DIAGNOSIS
. . . . . . . . . . . . . . . . . . .
1 SPECIFICATIONS AND
INSPECTION, TEST PROCEDURE
TIGHTENING REFERENCE
AND DIAGNOSIS
....................
9
......................
In Rear of Manual
Description
A combination Air-conditioning and heating unit is
available on AR-1, AR-2 Plymouth Models which is
dash mounted and operated by controls conveniently
located on the instrument panel.
INSPECTION, TEST PROCEDURES AND DIAGNOSIS
SERVICE DIAGNOSIS
NOTE: No attempt should be made to use the diagnosis information as a method of trouble shooting or spot
testing. When properly used (as an aid to complete test procedure), the diagnosis will be of considerable
value to the service man.
Condition Possible Cause Correction
BLOWER NOT
OPERATING loose or dirty connections.
(a) Blown fuse, broken wire, faulty switch motor,
(a) Test electrical circuit with point to point volt-
meter test repair or replacing faulty parts.
BLOWER AND COM-
PRESSOR OPERATING-
NO COOLING
(a) Low refrigerant, moisture, frozen, stuck or faulty
expansion valve, stuck or faulty E.P.R. valve.
(a) Add refrigerant, test for leaks and repair, re-
place strainer-drier, clean or replace expan-
sion valve, replace E.P.R. valve.
(b)
Low compressor capacity.
(c)
Kinks in lines.
(d)
Faulty water valve or out of adiustment.
(b) Repair or replace compressor.
(c)
Repair or replace lines.
(d) Adjust cable and/or replace valve.
BLOWER OPERATING
PARTIAL COOLING capacity.
(a) Moisture, low refrigerant, low compressor
(b) Slipping clutch.
(c) Water valve out of adjustment or faulty.
(d) Obstruction of condenser.
LOW SUCTION AND (a) Low refrigerant, moisture in system, expansion
LOW DISCHARGE valve frozen or stuck, thermal bulb lost charge,
PRESSURE restriction in liquid lines, bad compressor
valves, too much oil.
(a) Replace strainer-drier, add refrigerant, test for
leaks and correct, repair or replace compres-
sor.
(b)
Repair or replace.
(c) Adjust the cable or replace.
(d)
Clean condenser, repair, replace and remove
bug screens.
(a) Add refrigerant, test for leaks and correct, re-
place strainer-drier, clean or replace expan-
sion valve, repair or replace liquid line, repair
or replace compressor, remove excess oil.