Warner Electric Compressor Clutch Replacement Procedure - Manual (Page 7)

7 Warner Electric • 800-825-9050 P-1401 • 819-0316
Troubleshooting Checklist
For failure diagnosis of the clutch being replaced, (the failed clutch), refer to the Warner Electric
Troubleshooting Guide (form P-1011) and the appropriate A/C manufacturer's Service Manuals.
Use the guide below to troubleshoot the new clutch.
A. Symptom: Clutch will not disengage
Possible Causes Solution
• Improper hub/armature to rotor/pulley • Reset air gap (See Figure 7)
air gap (too small)
• Current is always on • Check electrical system
• Rotor/pulley snap ring not installed • Install per instructions (See Step 2)
correctly
B. Symptom: Clutch will not engage
Possible Causes Solution
• Improper hub/armature to rotor/pulley • Reset air gap (see Figure 7)
air gap (too big)
• Field coil electrical wiring is not connected • Connect field coil wiring
• Faulty field coil • Check field coil for continuity
• Less than 10.8 volts supplied to field coil • Check electrical system
(all accessories on)
C. Symptom: Clutch is noisy
Possible Causes Solution
• Field coil or rotor pulley snap rings • Check for correct installation (See Step 2)
are not installed correctly
• Belts too loose • Tighten per A/C manufacturer’s service manual
• Bearing noisy (new clutch only) • Return to manufacturer
• Clutch not burnished • Burnish per instructions (See Step 5)
D. Symptom: Clutch slips
Possible Causes Solution
• Belts too loose • Tighten per A/C manufacturer’s service manual
• Voltage to field coil less than 10.8 volts • Check electrical system
(all accessories on)
• Improper wiring or connections • Check electrical system
• Oil or grease on friction surfaces • Replace clutch
• Clutch not burnished • Burnish clutch per instructions (See Step 5)