My blower seems to be getting much hotter than usual. What are the likely causes? :
Packaged units will have been sized for a specific duty to match your system requirements and should not run excessively hot without good reason. Common causes of excess heat in the blower’s body, bearings and casings could be caused by one or more of the following:
The pressure rise across the blower has risen to exceed its’ design capability due to:
1. The blowers’ inlet filter has become blocked and either needs cleaning or replacing.
2. There is a blockage in a conveying line and the blower is running against excessive back pressure.
3. A non return valve has been installed back to front in the wrong direction of flow or has jammed in the closed position.
4. A shutoff valve is either closed or partially closed.
5. Water levels in an effluent treatment aeration system have risen to create additional line pressure.
6. The ventilation fan of a package within an acoustic enclosure or building is switched off or has failed.
7. The blower is running off a variable speed drive (inverter) which has slowed the machine to a point where it is no longer pulling in enough cold air at the inlet to keep the blower within design temperature limits.
Incorrect Lubrication:
1. Incorrect grade and/or type of oil.
2. Incompatible grade or type of oil used to top up gear box.
3. Insufficient oil.
4. Too much oil.
5. Incorrect grade and/or type of grease.
6. Incompatible grade or type of grease used to top up bearing.
7. Insufficient grease.
8. Too much grease.
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