IR P185WIR & XP185WIR Troubleshooting: Engine Temperature Lamp Stays On

IR P185WIR & XP185WIR Troubleshooting: Engine Temperature Lamp Stays On

If the engine temperature warning lamp on your Ingersoll Rand P185WIR or XP185WIR lights up and stays on, don’t ignore it. High temperatures can lead to serious engine damage if not addressed quickly. Here’s how to diagnose the most common causes and fix the problem before it gets worse.

Common Causes of Engine Temperature Lamp Staying On

  • Broken engine fan belt: Without the fan turning, the engine can’t cool itself properly and temperatures will spike fast.
  • Malfunctioning circuit board: A faulty board can send a false high-temperature signal even when temps are normal.
  • Defective engine belt break switch: If the switch that detects belt failure malfunctions, it can trigger a warning lamp even if the belt is intact.
  • Ambient temperature too high: Extremely hot working conditions can push the cooling system beyond its limits.
  • Dirty operating conditions: Dust, dirt, and debris clog cooling fins and restrict airflow, raising engine temps.
  • Dirty oil cooler: A clogged cooler can’t dissipate heat effectively, causing oil and engine temperatures to climb.
  • Compressor out of level (>15 degrees): Poor leveling affects oil circulation and cooling efficiency, increasing heat buildup.
  • Operating pressure too high: Running above recommended pressure places extra load on the engine and cooling system.

Recommended Fixes

Wrap-Up

The engine temperature lamp is there to protect your equipment. If it stays on, it’s your signal to act quickly. A few simple checks can keep your P185WIR or XP185WIR running cool and avoid costly downtime or engine repairs.

Disclaimer: The information provided in this blog is intended for general troubleshooting guidance only and may not cover every situation or machine configuration. Always refer to your specific equipment’s manual and follow the manufacturer’s safety instructions. If you are unsure or uncomfortable performing any maintenance or repairs, consult a qualified technician. Air Compressor Services is not responsible for any injuries, damages, or losses resulting from the use of this information.