V21 Parts & Service Manual
All V21 Identified Equipment
REV A – 10/2013
P/N: 1230476
Unit will only run in the
heater test mode. (Located
under tEST)
Defective door switch.
Open and close the door to make sure lights and
fan come on. If not, then check the door switch.
Defective temperature sensor
Follow the same steps detailed above about the
temperature sensor.
Defective control board Replace the control board.
Unit will not run even in the heater test
mode. **NOTE: Leave the compressor test
mode on in order to check for voltage.
Defective door switch.
Upon opening the door, the lights and
compressor should shut off. If they don’t
Defective control board Replace the board.
Heater runs but product freezing up.
Defective heater Replace the heater assembly.
Poor air flow
Make sure that nothing is sitting in front of
the heater.
Defective evap fan motor
Check the connection and installation of fan
blade. Replace the motor if necessary.
Defective temperature sensor Replace the temperature sensor.
Defective door seal
Make sure the vend flap and gasket are not
open or damaged.
V21 Troubleshooting Chameleon / Trade / HV3 | T1-11
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