2001 NISSAN ALMERA TINO Service Repair Manual

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Page 2665 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual RHA639H
SHA315F
Refrigerant Pressure SensorNLHA0192S02Make sure that the A/C refrigerant pressure and the sensor output
voltage are within the specified range as shown in the A/C operat-
ing condition

Page 2666 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual InsufficientCooling
NHA390
Insufficien tCooling

Page 2667 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual PERFORMANCE TEST DIAGNOSESNLHA0149
SHA419F
*1: HA-78
*2: HA-78*3: HA-79 *4: HA-50
TROUBLE DIAGNOSES
Insufficient Cooling (Cont’d)
HA-76

Page 2668 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual SHA361FA
*1:—*2: HA-55 *3: EM-17 (QG), EM-86 (SR),
EM-166 (YD)
TROUBLE DIAGNOSES
Insufficient Cooling (Cont’d)
HA-77

Page 2669 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual PERFORMANCE CHART=NLHA0150Test ConditionNLHA0150S01Testing must be performed as follows:
Vehicle location: Indoors or in the shade (in a well-ventilated place)
Doors: Closed
Door window: Open
Hood: Op

Page 2670 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual Ambient Air Temperature-to-operating Pressure Table=NLHA0150S0202
Ambient air
High-pressure (Discharge side)
kPa (bar, kg/cm
2, psi)Low-pressure (Suction side)
kPa (bar, kg/cm2, psi) Relative humidity

Page 2671 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual Both High and Low-pressure Sides are Too High.NLHA0151S01
Gauge indication Refrigerant cycle Probable cause Corrective action
Both high and low-pressure sides
are too high.
AC359A
+Pressure is reduced

Page 2672 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual High-pressure Side is Too Low and Low-pressure Side is Too High.NLHA0151S03
Gauge indication Refrigerant cycle Probable cause Corrective action
High-pressure side is too low and
low-pressure side is t

High-pressure Side is Too Low and Low-pressure Side is Too High.NLHA0151S03
Gauge indication Refrigerant cycle Probable cause Corrective action
High-pressure side is too low and
low-pressure side is too high.
AC356A
High and low-pressure sides
become equal soon after
compressor operation stops.Compressor pressure opera-
tion is improper.
↓
Damaged inside compressor
packingsReplace compressor.
No temperature difference
between high and low-pres-
sure sidesCompressor pressure opera-
tion is improper.
↓
Damaged inside compressor
packings.Replace compressor.
Both High- and Low-pressure Sides are Too Low.NLHA0151S04
Gauge indication Refrigerant cycle Probable cause Corrective action
Both high- and low-pressure sides
are too low.
AC353A
+There is a big temperature
difference between
receiver drier outlet and
inlet. Outlet temperature is
extremely low.
+Liquid tank inlet and
expansion valve are
frosted.Liquid tank inside is slightly
clogged.+Replace liquid tank.
+Check lubricant for con-
tamination.
+Temperature of expansion
valve inlet is extremely
low as compared with
areas near liquid tank.
+Expansion valve inlet may
be frosted.
+Temperature difference
occurs somewhere in
high- pressure sideHigh-pressure pipe located
between receiver drier and
expansion valve is clogged.+Check and repair malfunc-
tioning parts.
+Check lubricant for con-
tamination.
+Expansion valve and liquid
tank are warm or only cool
when touched.Low refrigerant charge
↓
Leaking fittings or compo-
nentsCheck refrigerant for leaks.
Refer to“Checking Refriger-
ant Leaks”, HA-100.
There is a big temperature
difference between expan-
sion valve inlet and outlet
while the valve itself is
frosted.Expansion valve closes a
little compared with the
specification.
↓
1. Improper expansion valve
adjustment
2. Malfunctioning thermal
valve
3. Outlet and inlet may be
clogged.+Remove foreign particles
by using compressed air.
+Check lubricant for con-
tamination.
An area of the low-pressure
pipe is colder than areas
near the evaporator outlet.Low-pressure pipe is clogged
or crushed.+Check and repair malfunc-
tioning parts.
+Check lubricant for con-
tamination.
Air flow volume is not
enough or is too low.Evaporator is frozen.+Check thermo control
amp. operation.
+Replace compressor.
TROUBLE DIAGNOSES
Insufficient Cooling (Cont’d)
HA-81

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