Intermittents and Poor Connections - HVAC System - Manual

Faulty electrical connections or wiring may be the cause of most intermittent problems. In the event of an intermittent failure, inspect the suspect circuits for the following conditions:
^ Poor mating of the connector halves.
^ Terminals not fully seated in the connector body (backed out).
^ Dirt or corrosion on the terminals.
Ensure that the terminals are clean and free of any foreign material that may impede the proper terminal contact.
^ Connector body damage that exposes the terminals to moisture and din.
Damage will affect the maintenance of the proper terminal orientation with the component or the mating connector.
^ Improperly formed or damaged terminals.
Inspect all connector terminals in problem circuits carefully in order to ensure good contact tension. Refer to Connector Repairs at Diagnostic Aids under Diagrams.
^ Use the J 35616-A Connector Test Adapter Kit whenever a diagnostic procedure requests inspecting or probing a terminal.The adapter performs the following functions:
- Ensures that no damage to the terminal will occur.
- Indicates whether the contact tension is sufficient.If the contact tension seems incorrect, refer to to Connector Repairs at Diagnostic Aids under Diagrams.
^ Poor terminal-to-wire connection.
Remove the terminal from the connector body in order to inspect this connection. Refer to Repairing Connector Terminals at Diagnostic Aids under Diagrams. The following conditions indicate a poor terminal-to-wire connection:
- Poor crimps.
- Poor solder joints.
- Crimping over the wire insulation rather than the wire itself.
- Corrosion in the wire.