T-13
04/2005
Compressor runs but cabinet temperature
warm.
Loss of refrigerant Replace the refrigeration unit.
Smashed tubings Replace the refrigeration unit.
Defective drainage Make sure the drain hose is not kinked or clogged.
Defective temperature sensor Replace the temperature sensor
.
Poor air flow Make sure nothing is sitting in front of the evaporator.
Defective control board Replace the control board.
Defective door seal Make sure the vend flap and gasket are not open.
Defective heat exchange on condenser/ Blocking air
flow by dust, lint or fins damage
Clean the surface of the condenser fi
ns or straighten the bent fins.
Both compressor and condenser fan motors
will not operate.
Bad refrigeration control relay. Test relay using relay test function of the electronic controller. Replace
relay if necessary.
Bad connection at power board. Check wiring connections. Make corrections if necessary.
Evaporator frosted over. Loss of refrigerant Replace the refrigeration unit.
Smashed tubings Replace the refer unit.
Defective drainage Make sure the drain hose is not kinked or clogged. Re-install hose
correctly if kinked or clogged.
Defective temperature sensor Replace the temperature sensor
.
Defective control board Replace the board.
Poor sealing Check gasket, vend flap, and permagum on the bulkhead.
Product freezing up (too cold). T
emperature setting too low. Adjust set point in control board.
Defective temperature sensor Replace the temperature sensor.
Defective control board Replace the control board.
Excessive noise. Fan blade hitting shroud or transformation or loose
fitting
Replace the fan blade or re-install correctly.
From the inside of fan motor or loose fitting Re-install or replace the motor.
From the inside of compressor or loose fitting Replace the refrigeration unit.
ERROR PROBABLE CAUSE CORRECTIVE ACTION
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