IR P185WIR & XP185WIR Troubleshooting: Excessive Compressor Oil Temperature
High oil temperatures aren’t just a warning light—they’re a major threat to the life of your Ingersoll Rand P185WIR or XP185WIR. If the oil is running too hot, it can cause premature wear, breakdowns, and costly repairs. Here’s how to troubleshoot the problem before it turns into something bigger.
Common Causes of High Oil Temperature
- Ambient temperature too high: If the air around the compressor is too hot, the cooling system can’t keep up.
- Compressor not level (more than 15°): Poor oil circulation when the unit is out of level can cause hotspots and overheating.
- Low oil level: Less oil means less heat dissipation, leading to higher temps.
- Dirty oil cooler: A clogged cooler can’t properly remove heat from the oil.
- Dirty operating conditions: Dust and debris clogging the cooling fins or air pathways reduce cooling efficiency.
- Loose or broken belts: Belts that drive the cooling fan can slip or fail, cutting airflow across the cooler.
- Operating pressure too high: Running above rated pressure increases heat load across the system.
- Malfunctioning thermostat: If the thermostat sticks, oil may bypass the cooler when it shouldn’t.
- Defective minimum pressure valve: A stuck valve can restrict oil flow, causing heat buildup.
- Blocked or restricted oil lines: If oil can’t circulate freely, localized heating will occur.
- Airend malfunctioning: Worn or failing airends create friction and heat that overload the cooling system.
Recommended Fixes
- Ensure the compressor is operating in an environment within temperature specs—move to shade or add ventilation if needed.
- Park the compressor on level ground to maintain proper oil circulation.
- Top off oil if low, and use the correct compressor oil recommended for your model.
- Inspect and clean the oil cooler to remove any blockages or buildup.
- Clean around cooling fins and air intakes if operating in dusty or dirty environments.
- Inspect and replace loose or broken belts that drive the cooling fan.
- Verify and adjust operating pressure to factory specifications.
- Test and replace a malfunctioning thermostat if needed.
- Replace the minimum pressure valve if it’s defective.
- Inspect and clean or replace restricted oil lines.
- Have the airend inspected if internal wear or damage is suspected.
Wrap-Up
Keeping your compressor’s oil temperature under control protects the air end, maximizes uptime, and keeps your P185WIR or XP185WIR running like it should. Regular inspections and quick repairs are key to preventing major heat-related failures.