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Section VII - Troubleshooting
General Notes:
• Do not pump liquids containing ferrous metal fines.
• If magnets decouple, stop pump immediately. Operating the
pump with the magnets decoupled will eventually weaken
• the magnets.
• Power monitors are required and must be used with all ATEX
certified pumps.
• Do not use mismatched drive magnet assemblies (different
number of magnets on inner and outer drive magnet
assemblies).
• Contact our Technical Service Department
Phone: 1-800-888-3743
• Email: [email protected] if you have any
questions regarding product operation or repair.
No or Insufficient Discharge
• Air leaks in suction piping
• Pump not primed
• System head higher than anticipated
• Closed valve
• Viscosity or specific gravity too high
• Motor too large for magnet coupling rating (magnets
uncoupled)
• Suction lift too high or insufficient NPSH
• Clogged suction line or impeller vanes
• Motor rotation incorrect (correct rotation when viewed from
the fan end is clockwise)
Insufficient Pressure
• Air or gas in liquid
• Impeller diameter too small
• System head lower than anticipated
• Motors speed insufficient (too low) or motor rotation incorrect
(correct rotation when viewed from the fan end is clockwise)
Loss of Prime
• Leak in suction piping
• Foot valve or suction opening not submerged enough
• Foot valve too small or leaking
• Air or gas in liquid
• Foreign matter in impeller
• Leaking valve. Suction lift too high or insufficient NPSHa
Excessive Power Consumption
• Head lower than rating
• Excessive flow
• Specific gravity or viscosity too high.
Vibration/Noise
• Loose magnet
• Drive magnet rubbing
• Pump cavitating from improper suction or feed
• Motor or piping not properly secured
• Foreign object in impeller
Section VIII - Warranty
Finish Thompson, Inc (manufacturer) warrants this pump product
to be free of defects in materials and workmanship for a period
of five years from date of purchase by original purchaser. If
a warranted defect, which is determined by manufacturer’s
inspection, occurs within this period, it will be repaired or replaced
at the manufacturer’s option, provided (1) the product is submitted
with proof of purchase date and (2) transportation charges are
prepaid to the manufacturer. Liability under this warranty is
expressly limited to repairing or replacing the product or parts
thereof and is in lieu of any other warranties, either expressed
or implied. This warranty does not apply to normal wear of the
product or components. This warranty does not apply to products
or parts broken due to, in whole or in part, accident, overload,
abuse, chemical attack, tampering, or alteration. The warranty
does not apply to any other equipment used or purchased in
combination with this product. The manufacturer accepts no
responsibility for product damage or personal injuries sustained
when the product is modified in any way. If this warranty does
not apply, the purchaser shall bear all cost for labor, material and
transportation.
Manufacturer shall not be liable for incidental or consequential
damages including, but not limited to, process down time,
transportation costs, costs associated with replacement or
substitution products, labor costs, product installation or removal
costs, or loss of profit. In any and all events, manufacturer’s
liability shall not exceed the purchase price of the product and/or
accessories.
Warranty Registration
Thank you for your purchase of this quality Finish Thompson
product. Be sure to take a minute to register your pump at
Finishthompson.com/warranty. Simply provide the model number,
serial number and a few other pieces of information.
Ordering Spare Parts
Spare parts can be ordered from your local distributor. Always
refer to the pump model to avoid error.
