PolyScience LS Series User Manual

Cleaning Exterior Surfaces
Only mild detergents and water or an approved cleaner should be used on the painted surfaces of the Chiller.
Do not allow cleaning liquids or sprays to come in direct contact with the digital display.
Troubleshooting
NOTE: Many problems can be resolved by restoring the factory defaults. If this solves the problem, be
careful when restoring your operational settings in order not to repeat the problem.
To restore the factory default settings:
1. Place the Power Switch/Circuit Breaker on the rear of the unit in the OFF position.
2. Press and hold either the Up (for °C) or Down (for °F) arrow button while returning the Circuit
Breaker/Power Switch to the On position.
WARNING: Refer servicing to qualified service personnel.
WARNING: When electrical power is On, dangerous voltages exist within chassis components. Use
extreme care when measuring voltages on live circuits.
Problem Possible Causes Corrective Action
Unit does not run
(digital displays blank)
No power to unit Check that the electrical cord is secure and
connected to an operating electrical outlet.
Check that Power Switch / Circuit Breaker on rear
of unit is ON.
Unit does not run
(three decimal points appear on
temperature display, two
decimal points on pressure/flow
rate display)
Unit in Standby mode Press Power Button on front panel.
No fluid circulation
Insufficient fluid in reservoir
Blockage in circulating
system
Pump is not operating
Add fluid to reservoir.
Remove blockage.
Replace pump.
Pump cycles On and Off at
startup; EFL flashes on display
No flow condition detected
due to insufficient fluid in
reservoir or blockage in
circulating system
Add fluid to reservoir as required.
Remove blockage as required.
Insufficient circulation
Fluid viscosity too high
External tubing diameter too
small
Restrictions in fluid lines
Low line voltage
Replace with lower viscosity fluid.
Replace with larger diameter tubing.
Check and correct as required.
Check and correct as required.
Unit does not cool or cooling is
insufficient
Dust build up on air filter or
condenser
Blocked air ventilation
screens
Excessive heat load
Ambient air temperature too
high
Low or high line voltage
Clean air filter and/or condenser as required.
Remove blockages as required.
Check that heat load does not exceed capacity of
chiller; correct as required.
Decrease ambient air temperature.
Check and correct as required.
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110-445

PolyScience LS Series Specifications

General

Brand	PolyScience
Model	LS Series
Category	Chiller
Language	English