A/C - Does Not Blow Cold Air: Overview
97-031Applies To: 1994-97 Accord - ALL
1994-97 Civic - ALL
1994-95 del 501 - ALL
August 4, 1997
A/C Does Not Blow Cold Air
SYMPTOM
The air conditioning system does not blow cold air.
PROBABLE CAUSE
The evaporator tubes corrode from ocean salt spray, causing pinholes that allow refrigerant to leak. This problem is limited to areas where a hot, humid climate is combined with ocean air (Florida, Hawaii, Puerto Rico, or Gulf Coast areas).
CORRECTIVE ACTION
Replace only the evaporator if the vehicle comes in with some refrigerant in the high side line. Replace both the evaporator and the receiver/dryer if the vehicle comes in without any refrigerant in the high side line.
DIAGNOSIS
1. Remove the service port caps, and connect an approved R-134a recovery/recycling station to the vehicle.
2. Start the engine, and turn on the A/C.
3. Check the pressures. If they are below normal, charge the A/C system.
4. Using a Yokogawa or a Denso halogen leak detector, check for a leak at the evaporator.
- Set the Fresh/Recirc button to Fresh, then turn the blower motor to High for 15 seconds.
- Turn off the blower, and set the Fresh/Recirc button or lever to the Recirculation position. Wait 10 minutes to allow any leaking refrigerant to accumulate in the vents.
- Insert the probe into the center vent, and turn the blower motor to Low for about half a second; this will force any accumulated refrigerant out through the vent.
5. If you find a leak, continue to REPAIR PROCEDURE.
REQUIRED SPECIAL TOOLS
Denso HLD-100 Halogen Leak Detector Kit:
Call Special Tools Department at 800-346-6327
-OR-
Yokogawa H-10P Leak Detector:
Call 800-258-2552
PARTS INFORMATION
WARRANTY CLAIM INFORMATION
In warranty:
The normal warranty applies.
Failed part: P/N 80210-ST7-A21, H/C 4327656
Defect code: 011
Contention code: B02
Skill Level: Repair Technician
Out of warranty:
Any repair performed after warranty expiration may be eligible for goodwill consideration by the District Service Manager or your Zone Office. You must request consideration, and get a decision, before starting work.