Symptom
Probable Cause
Corrective Action
Fluorescent lamp not working. Lamp loose or defective.
Re-install or replace fluorescent lamp.
Ballast defective.
Contact authorized Service agent or Hatco for assistance.
Light socket defective.
Contact authorized Service agent or Hatco for assistance.
Unit operates, but is not
circulating air inside cabinet.
Blower motor is defective.
Contact authorized Service agent or Hatco for assistance.
The correct voltage may not be
supplied to blower.
Contact authorized Service agent or Hatco for assistance.
Unit is plugged in, but nothing
works.
No power to unit.
Check electrical receptacle and verify that power supply
matches specifications on unit. If receptacle is not
working, check circuit breaker and reset, or plug unit into
a different known working receptacle.
Power cord connections are loose
or disconnected.
Contact authorized Service agent or Hatco for assistance.
Power cord is damaged.
Contact authorized Service agent or Hatco for assistance.
Defective ON/OFF (I/O) switch.
Contact authorized Service agent or Hatco for assistance.
Unit is operational, but rotating
rack (if equipped) does not
turn.
Proximity switch was not relocated
after door reversal.
See “Relocating the Proximity Switch” in the
INSTaLLaTION section of this manual.
Proximity magnet or proximity
switch not working properly.
Contact authorized Service agent or Hatco for assistance.
Incorrect voltage is supplied to rack
motor.
Contact authorized Service agent or Hatco for assistance.
Rack motor defective.
Contact authorized Service agent or Hatco for assistance.
Unit is not producing any “hot
air” inside cabinet.
Safety high-limit is tripped or open. Contact authorized Service agent or Hatco for assistance.
Incorrect voltage supplied to
heating element.
Contact authorized Service agent or Hatco for assistance.
Blower motor is not working.
Contact authorized Service agent or Hatco for assistance.
air heating element is defective.
Contact authorized Service agent or Hatco for assistance.
Control board defective.
Contact authorized Service agent or Hatco for assistance.
Temperature probe defective.
Contact authorized Service agent or Hatco for assistance.
Unit is heating, but is producing
too much humidity inside the
cabinet causing steam inside
unit.
Humidity control is set too high.
adjust the humidity control to a lower setting.
air temperature is set too low.
adjust the temperature to a higher setting.
Humidity control is defective.
Contact authorized Service agent or Hatco for assistance.
Unit is heating, but is not
producing humidity inside
cabinet. ‘
LO h20’
is not
flashing, and unit is full of water.
Incorrect voltage supplied to water
heating element or heating element
is defective.
Contact authorized Service agent or Hatco for assistance.
Humidity element defective.
Contact authorized Service agent or Hatco for assistance.
14
Form No. FDWDm-0915
TROUBLEShOOTING GUIDE
English
This unit must be serviced by trained and qualified
personnel only. Service by unqualified personnel may lead
to electric shock or burn.
WARNING
ELECTRIC ShOCK hAzARD: Turn OFF power switch,
unplug power cord, and allow unit to cool before
performing any cleaning, adjustments, or maintenance.
WARNING
