Tefcold LDP900F - Troubleshooting

Operation Instruction for Display Cabinet
4
Troubleshooting
Troubles
Causes
Solutions
No power
supply input
Poor socket contact
Repair or replace the socket
Input control wire failure
Repair the failure point
High cabinet
temperature
Near a heat source
Move the counter or the heat
source
Frost block
Defrost manually
Over-inventory in the
cabinet which blocks
the air outlet and inlet
Take out part of the goods,
move them away from the air
outlet and inlet
Refrigerant leaking
Check the leak and refill
refrigerant
Condenser contaminated
Clean the dust-hood
Fan failure
Repair or replace the fan
Temperature controller
failure
Replace the temperature
controller
Temperature control probe
touch the bottom
Replace the position of
temperature control probe
Too much noise
The product is not put
smoothly
Adjust the feet
The set screws of fans or
compressor are loose
Tighten the screws
The compressor
is not running
The voltage is beyond the
permitted range
Use a voltage regulator,and
connect with the appropriate
power supply
Temperature controller
failure
Replace the temperature
controller
The compressor damage
Replace the compressor
The light failure
Switch off or failure
Turn on the switch
Wire connection is not
reliable
Check the plug point
The light power supply
damaged
Replace the light power
supply
light damaged
Replace the light
Note:
1. For simple troubleshooting, please be sure to disconnect the power supply.
2. For the maintenance and replacement work, please call for professionals
or the maintenance staff from the refrigeration factory of the manufacturer.
3. If the above methods could not solve the problem, please call for
professionals.