This FAQ has been written for NEAL (North East Africa and Levant) region. If you are looking for information for another region, please select the correct country from the top-left dropdown in the page and 'Navigate to Browse FAQs' in the Support menu.
Issue:
This document describes what to look for in an legacy airflow unit if you discover a loud noise or squealing noise.
Product line:
Airflow, AFX, CCT, CM, TC.
Environment:
All Product models, all serial numbers.
Cause:
Possible fan or motor bearing noise.
Resolution:
Loud noises or squealing coming from unit is usually indicative of a fan issue.
This document describes what to look for in an legacy airflow unit if you discover a loud noise or squealing noise.
Product line:
Airflow, AFX, CCT, CM, TC.
Environment:
All Product models, all serial numbers.
Cause:
Possible fan or motor bearing noise.
Resolution:
Loud noises or squealing coming from unit is usually indicative of a fan issue.
- Bearings need to be check for proper lubrication.
- Blower wheel and housing need to be checked for alignment.
- Fan belt and motor pulley. Check for worn belt or dirty and grease on the pulley.
- Check for cracks in the motor adjustment plate.
- Ensure that the motor is secure to the motor adjustment plate.
- Verify motor amperage to the nameplate (overheating).
- NOTE: most bearings are a sealed cartridge style which need to be replaced, pillow block bearings should be greased accordingly.
Released for:Schneider Electric Egypt and North East Africa
