Applicable Systems
RTAC 200
Symptoms
Oil pressure differential fault. The compressor oil pressure is insufficient for safe operation.
Possible Causes
- Oil pump failure or oil level low
- Oil filter clogged restricting oil flow
Troubleshooting Steps
- Step 1: Check the compressor oil level sight glass
Oil level is below the minimum - Step 2: Inspect the oil filter and pump for clogging or damage
Filter is clogged or pump is faulty
How to Reset
To reset: Fix the oil level or pump issue, then reset the controller.
Source: Trane HVAC Service Manual, Trane Inc.
Category: HVAC Residential