E-101: High discharge temperature

Q: How do I check a E-101 fault?

1. Check oil level at sight glass with unit stopped 2. Inspect and clean cooler fins 3. Verify cooling air path and room ventilation 4. Check thermostatic valve operation against OEM data Safety: Isolate electrically and vent all stored air pressure before opening any part.

Probable causes

Low oil level
Blocked oil cooler fins
Faulty thermostatic valve
High ambient/intake temperature

Step-by-step checks

Check oil level at sight glass with unit stopped
Inspect and clean cooler fins
Verify cooling air path and room ventilation
Check thermostatic valve operation against OEM data

Safety: Isolate electrically and vent all stored air pressure before opening any part.

Sample code — verify with the OEM manual for your exact model.

Ask the expert on WhatsApp

Frequently asked questions

What does E-101 mean on a Screw Air Compressor?

E-101 usually indicates: High discharge temperature. Confirm the meaning in the manufacturer's manual for your model.

What causes E-101?

Low oil level; Blocked oil cooler fins; Faulty thermostatic valve; High ambient/intake temperature.

How do I check a E-101 fault?

Work through the numbered checks above in order, recording readings as you go. Isolate electrically and vent all stored air pressure before opening any part.

Other Screw Air Compressor codes

Disclaimer: Fault code information is guidance only. Codes and meanings vary between manufacturers and models — always follow the manufacturer's manual and your site's safety procedures, and use qualified personnel for electrical, pressure, refrigerant and combustion work.