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HAC-102 < BASIC INSPECTION > [MANUAL AIR CONDITIONER] INSPECTION AND ADJUSTMENT INSPECTION AND ADJUSTMENT Description & Conditions INFOID:0000000004498257 DESCRIPTION The purpose of the operational check is to confirm that the system operates properly. CONDITIONS: • Engine running and at normal operation temperature. Operational Check INFOID:0000000004498258 STEP 1: Check Blower 1. Turn blower control dial clockwise, blower should operate on low speed. checked. 3. Leave blower on HI speed. HAC-127, "Diagnosis Procedure" . If OK, continue with next check. STEP 2: Check Discharge Air 1. Press each mode switch and press DEF ( ) switch. 2. Each mode position indicator should illuminate. . NOTE: Confirm that the compressor clutch is engaged (audio or visual inspection) and intake door is in the FRE ) position when the DEF ( ) is selected. Intake door position is checked in the next step. HAC-124, "Diagnosis Procedure" . If OK, continue with next check. STEP 3: Check Recirculation 1. Press REC ( ) switch. Recirculation indicator should illuminate. 2. Press REC ( ) switch a second time. 3. Listen for intake door position change (you should hear blower sound change slightly). HAC-124, "Diagnosis Procedure" . If OK, continue with next check. STEP 4: Check Temperature Decrease 1. Turn the temperature dial counterclockwise to maximum cold. HAC-122, "Diagnosis Procedure" . If OK, continue with next check. STEP 5: Check Temperature Increase 1. Turn the temperature dial clockwise to maximum heat. HAC-122, "Diagnosis Procedure" . If OK, continue with next check. STEP 6: Check Air Conditioner Switch (if equipped) 1. Turn blower control dial to the desired position and push the A/C switch to turn ON the air conditioner |