Air Conditioning (A/C) System Health and Safety Precautions
WARNINGS:
Only qualified technicians are allowed to
work on air conditioning (A/C) systems.
Air conditioning (A/C) system components
can become particularly hot or cold.
Make sure that the air conditioning (A/C)
system is at ambient temperature before
carrying out any repair.
When handling refrigerants, always wear
protective goggles and gloves made of
fluoroelastomer. Leather or fabric gloves
are not suitable.
SKIN CONTACT: If liquid refrigerant comes
into contact with the skin, it produces
severe frostbite. Immediately flush affected
areas with plenty of cold running water for
15 minutes. Seek medical attention.
EYE CONTACT: If refrigerant comes into
contact with the eyes, immediately flush
the eyes with plenty of running water for
15 minutes. Seek medical attention.
INHALED: Toxic gases generated when
refrigerant is heated are hazardous to
health. The gases have an irritating smell
and can cause lung damage. The
symptoms can continue for a long time
after having been in contact with the gases.
The gases can cause lung damage even if
the amount of gas in the air is too small to
smell.
Refrigerant is flammable and explosive.
Make sure that refrigerant bottles are not
exposed to temperatures greater than 45°C.
Make sure that the local regulations
regarding work on air conditioning (A/C)
systems are adhered to.
Make sure that refrigerant bottles are
closed properly.
Gaseous refrigerant has a higher density
than air. There is a danger of suffocation
when working close to the ground or in
workshop pits.
Provide adequate ventilation when
handling refrigerant.
Never release refrigerant into the
atmosphere.
Only use special tools, equipment and
lubricants that are approved for the type
of refrigerant being used.
Always follow the manufacturer’s
instructions for the correct servicing unit
operating procedure.
CAUTIONS:
Do not mix refrigerant oils for different
types of refrigerant.
Never mix different types of refrigerant or
equipment intended for them.
Only use refrigerant in gas form when
filling the system through the low-pressure
connection.
Only use refrigerant in liquid form when
filling the system through the
high-pressure connection.
Refrigerant attacks certain plastics. Only
use seals suitable for refrigerant.
If the air conditioning (A/C) compressor is
damaged, the fixed orifice tube can
become blocked with metal particles.
Any sort of blockage in the refrigerant
circuit will damage the air conditioning
(A/C) compressor irreparably.
If the air conditioning (A/C) system has
been opened for a period greater than 2
hours, a new receiver drier must be
installed and the evacuating time to be
increased by a minimum of 2 hours.
NOTE: New air conditioning (A/C) compressors
are delivered prefilled.
NOTE: Refrigerant oil in new air conditioning (A/C)
compressors can contain Teflon, visible as white
particles, which will not harm the system.
G548993en2008.50 Kuga8/2011
100-00- 60
General Information
100-00- 60
DESCRIPTION AND OPERATION
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Climate Control System
Refer to Wiring Diagrams Section 412-00, for
schematic and connector information.
Special Tool(s) / General EquipmentTerminal Probe Kit
418-S035
29011A
Digital Multimeter (compatible with K-type
thermocouple)
The Ford approved diagnostic tool
Refrigerant center
Thermometer - Fluke 80 PK-8 (FSE number 260
4102 001 07)
Inspection and Checking
NOTE:The electronic automatic temperature
control (EATC) module is integrated into the air
conditioning control assembly.
1. VERIFY customer concern.
2. Visually CHECK for any obvious mechanical or electrical damage.
NOTE: Ensure correct locking of the wiring harness
connector.
Visual Inspection
Electrical
Mechanical
• Fuses
• Wiring harness
• Connector
• Refrigerant lines
• Condenser core
• Coolant level
• Drive belt
• A/C compressor
3. RECTIFY any obvious causes for a concern found during the visual inspection before
performing any further tests. CHECK the
operation of the system.
4. If the concern is still present after the visual inspection, perform fault diagnosis on the
electronic engine management, the charging
system, the generic electronic module (GEM)
and the instrument cluster (vehicles with EATC:
read out the EATC fault memory as well) using the Ford approved diagnostic tool and RECTIFY
the fault(s) displayed in accordance with the
fault description. CHECK the operation of the
system.
5. For vehicles with no stored fault(s), PROCEED in accordance with the Symptom Chart
according to the fault symptom.
6. Following checking or elimination of the fault(s) and after completion of operations, the fault
memories of all vehicle modules must be READ
OUT and any stored faults must be DELETED.
Refrigerant Circuit - Quick Check
WARNING: The air conditioning system is
filled with refrigerant R134a. Observe
"Health and Safety Precautions". For
further information
REFER to: Air Conditioning (A/C) System
Recovery, Evacuation and Charging
(412-00 Climate Control System - General
Information, General Procedures).
Refrigerant circuit check
WARNING: Under certain circumstances,
refrigerant lines and A/C components may
be extremely hot or cold. Exercising care,
touch the refrigerant lines or A/C
components in order to check this. Failure
to follow these instructions may result in
personal injury.
When the A/C system is operating, the following
conditions should apply:
• The refrigerant line from the refrigerant compressor to the condenser must be hot.
• The refrigerant line from the A/C condenser to the fixed orifice tube must be warm, but not so
hot as the refrigerant line mentioned above.
• Determine the difference in temperature upstream and downstream of the A/C condenser
by measuring the temperatures at the refrigerant
lines. The temperature difference should be
more than 20° C, depending on the ambient
temperature. If the temperature difference is
less, check the condenser for contamination or
damage to the fins as well as operation of the
radiator fans.
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412-00- 3
Climate Control System - General Information
412-00- 3
DIAGNOSIS AND TESTING
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