8
ACSC IO&M
B51002-002
Limited Warranty
Loren Cook Company warrants that your Loren Cook fan was manufactured free of defects in materials and workmanship, to the extent stated herein.
For a period of one (1) year after date of shipment, we will replace any parts found to be defective without charge, except for shipping costs which will be
paid by you. This warranty is granted only to the original purchaser placing the fan in service. This warranty is void if the fan or any part thereof has been
altered or modified from its original design or has been abused, misused, damaged or is in worn condition or if the fan has been used other than for the
uses described in the company manual. This warranty does not cover defects resulting from normal wear and tear. To make a warranty claim, notify Loren
Cook Company, General Offices, 2015 East Dale Street, Springfield, Missouri 65803-4637, explaining in writing, in detail, your complaint and referring to
the specific model and serial numbers of your fan. Upon receipt by Loren Cook Company of your written complaint, you will be notified, within thirty (30)
days of our receipt of your complaint, in writing, as to the manner in which your claim will be handled. If you are entitled to warranty relief, a warranty ad-
justment will be completed within sixty (60) business days of the receipt of your written complaint by Loren Cook Company. This warranty gives only the
original purchaser placing the fan in service specifically the right. You may have other legal rights which vary from state to state. For fans provided with
motors, the motor manufacturer warrants motors for a designated period stated in the manufacturer’s warranty. Warranty periods vary from manufacturer
to manufacturer. Should motors furnished by Loren Cook Company prove defective during the designated period, they should be returned to the nearest
authorized motor service station. Loren Cook Company will not be responsible for any removal or installation costs.
Corporate Offices: 2015 E. Dale St. Springfield, MO 65803
Phone 417-869-6474 | Fax 417-862-3820 | lorencook.com
July 2017
Troubleshooting
Problem and Potential Cause
Low Capacity or Pressure:
• Incorrect direction of rotation. Make sure the fan rotates
in same direction as the arrows on the motor or belt drive
assembly
• Poor fan inlet conditions. There should be a straight clear
duct at the inlet
• Improper wheel alignment
Excessive Vibration and Noise:
• Damaged or unbalanced wheel
• Belts too loose; worn or oily belts
• Speed too high
• Incorrect direction of rotation. Make sure the fan rotates
in same direction as the arrows on the motor or belt drive
assembly
• Bearings need lubrication or replacement
• Fan surge
Overheated Motor:
• Motor improperly wired
• Incorrect direction of rotation. Make sure the fan rotates
in same direction as the arrows on the motor or belt drive
assembly
• Cooling air diverted or blocked
• Improper inlet clearance
• Incorrect fan RPMs
• Incorrect voltage
Overheated Bearings:
• Improper bearing lubrication
• Excessive belt tension