CONDITION
Control Display Is Flashing
If all the control lights are flashing, it is likely that you have a grounding
issue with the power source. Have wiring inspected by a qualified
electrician.
No Display on Controller.
Check supply voltage on terminals #6 and #7 on the back of the
controller. If proper voltage is present, replace controller.
Control Error
Error EO = Shelf probe is reading Open or Shorted – unplug shelf and
ohm out probe at room temperature.
Note: The error will automatically clear within seconds once the
connection is restored if the sensor is giving the control a reading.
Turn the main power switch to off to power the unit down;
Wait 10
seconds, and power the unit back on.
If error is still present, ensure all heater cords are fully seated into their
receptacles.
Verifying Shelf Temperature
On Controller
To Temporarily See the Current Shelf Temperature
Press & Hold Down (Defrost) immediately followed by Up (Power) You
must keep them both held to see the temperature.
Verifying Shelf Temperature
With Separate Probe
A Contact probe should be, at approximately the center of the shelf and
should read within approximately 15°F of the controller reading.
Temperature Is Too Low
Check supply voltage to case is above 208 Volts.
Increase control set point.
Look for HVAC discharge vents, fans, and other potential air
disruptions.
If using rack, check rack orientation. Flip rack over if needed so product
is
closer to the shelf surface.
TEMPERATURE ISSUES / CONTROL
HSSM
Heated Merchandiser
16
