KV1000 Constant Temperature Kinematic Viscosity Bath
Operation and Instruction Manual
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7.2. Replacement Parts
8. Troubleshooting
WARNING: Troubleshooting procedures involve working with high voltages and/or temperatures which may result in personal
injury or death and should only be performed by trained personnel. Please do not hesitate to contact Koehler for assistance.
9.1. Unit Will Not Operate (no heat, cooling, or pumping)
• Check that the power cord is plugged into an operating electrical outlet.
• Check that the Circuit Breaker/Power Switch is on.
• Check that the Controller Power Switch is ON.
• Check that the Safety Set temperature is higher than the control temperature set point.
• Turn power off, press the Safety Set Reset button and restore power.
8.2. No Pumping
• Check the fluid level of the bath to be sure the pump head is covered with fluid.
• If the pump motor does not spin, verify that the Pump Speed Switch is either in the HIGH or LOW position. If it is in the middle,
the pump will not receive power.
• Check the pump impeller for obstructions (it should turn freely).
8.3. Slow or Insufficient Pumping
• Low line voltage, particularly when the heater is on
• A hose diameter that is too small can restrict pumping (closed loop applications)
• Kinks in hose
• Too high of a fluid viscosity
9. Service
Under normal operating conditions and with routine maintenance, the KV1000 Kinematic Viscosity Bath should not require service.
Any service problem can be quickly resolved by contacting Koehler’s technical service department either by letter, phone, fax, or
email. In order to assure the fastest possible service, please provide us with the following information.
Model Number: ________________________
Serial Number: ________________________
Date of Shipment: ______________________
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