Section 7
Troubleshooting
Incubated and Refrigerated Shakers 7-1
Thermo Scientific
Problem
Possible Causes
Solutions
Shaker doesn’t operate
Check if power cord is plugged
in.
Plug in.
Check if power supply matches
requirements on data label.
Locate power supply that
matches unit requirements.
E-Class, check circuit breaker.
Reset circuit breaker.
E-Class, check for flashing lights
on control panel.
Press any switch on control
panel.
E-Class, check if elapsed timer
is flashing.
Reset timer.
A-Class, check if timer is in off
position.
Set timer for continuous or
timed operation.
A-Class, check if power switch
is functioning.
Replace if defective.
Platform doesn’t rotate or
has erratic speed
Check for power to motor.
Replace motor if defective.
Check drive belt.
Replace if worn, broken or
slipped off pulley.
A-Class, check for power to
speed control.
Replace if defective.
Shaker won’t heat
E-Class make sure “HEAT ON”
lamp is lit.
Push “HEAT ON” button.
