T-12
04/2005
ERROR PROBABLE CAUSE CORRECTIVE ACTION
Vendor accepts and credits money but does
not vend (does not indicate a sold-out).
Defective selection switch. Replace switch.
Defective selection switch harness. Repair or replace harness.
Defective controller board. Replace board.
REFRIGERA
TION
Refrigeration unit will not run. Defective temperature sensor. 1. Check connection.
2. Replace temperature sensor.
Defective control board. Replace board.
Refrigeration unit will not run at all. No power to vendor
. Check power supply, also check service cord connections.
Unit will only run in the compressor relay test
mode. (Located under Test Mode)
Defective cabinet switch. Open and close the door to make sure lights and fan come on. If not, then
check the cabinet switch.
Defective temperature sensor. Follow the same steps detailed above about the temperature sensor.
Wait the 3 minute delay once the cabinet door is
closed.
W
ait to see if unit comes on.
Defective control board. If unit still does not come on, then replace the control board.
Unit will not run in the compressor relay test
mode. **NOTE: Leave the compressor relay
test mode on, in order to check for voltage.
Defective control board. Unplug unit at power distibution panel. Remove air dam. Reconnect power.
Enable compressor relay through
Test Mode. Check 2-pin connection on
power distribution for 110V.
Defective relay. Upon opening the cabinet door, the lights and fans should shut off. If they
don’t, replace the cabinet switch.
Refrigeration unit runs constantly
. Defective cabinet switch. Upon opening the door, the display should read either errors, summary
sales, or none. If it does not, then replace the cabinet switch.
Defective control board. Replace control board.
Defective relay - contacts are welded together
. Replace relay.
Compressor will not start. Overload protector inoperative. Check overload (apply insulated jumper across terminal, if compressor
starts, replace overload).
Defective cabinet switch. Check for error codes. Replace cabinet switch.
Compressor will not start, condenser
fan motor running - unit hot (power to
compressor).
Defective over load relay Replace the over load relay
.
Compressor motor rocked Replace the refer unit.
Defective capacitor Replace the capacitor.
Defective PTC relay Replace the PTC relay.
Compressor starts but does not run. Loss of refrigerant Replace the refrigeration unit.
Smashed tubings and capillary Replace the refrigeration unit.
Defective over load relay Replace the over load relay
.
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