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AP 113 running warm
Refrigeration and temperature drift troubleshooting. (AP 113).
Updated Feb 9, 2026
Overview
This guide covers AP 113 running warm. Refrigeration and temperature drift troubleshooting.
Diagnostics
- Clean condenser coils and verify fan operation.
- Check door gasket seal and airflow clearance.
- Verify temperature probe placement and setpoints.
- Inspect compressor relay and capacitor for faults.
Resolution steps
- Perform a controlled test after each adjustment.
- Document the changes and results for future reference.
- If the issue persists, swap with a known-good component.
Preventive maintenance
- Clean components during each service visit.
- Log repeat faults to identify wear patterns.
- Keep spare parts for legacy models on the truck.
When to contact support
legacymodelsap-113running-warm