Coffee Crafters -| Maintenance and Troubleshooting
9
3
Both Heat Elements
Won’t Turn On
Problem
Cause(s)
Solution
Bean loft motor
powers up but
elements won’t
turn on.
1.
Heat element switch
failed.
2.
Faulty connector on
input side of heat
switch.
3.
Temperature controller
setting.
4.
Faulty temperature
controller.
1.
Replace heat element switch.
2.
Replace connector and heat switch.
3.
Check the roast air temperature control
setting. Roast air temperature must be set
higher than your desired ending bean
temperature.
4.
Replace temperature controller.
Note: The system power switch supplies power to
the input of the heat switches when in the “on”
position. If the heat elements do not come on
when the heat switch is turned “on”, check the
voltage on the output of the heat switch (center
terminal). If no voltage, replace switch.
Bean Loft Motor Runs at Full Speed Only
Problem
Cause(s)
Solution
Speed control
knob will not
reduce bean loft
motor RPM.
1.
SSR-3 has failed.
2.
Motor speed control
potentiometer has
failed.
1.
Replace SSR-3.
2.
Replace motor speed control
potentiometer.
