Delfield Freezer Troubleshooting
Having a freezer malfunction can be a serious situation for food safety. It keeps food at the right temperature and if it malfunctioned you could potentially lose any stored food. Below we will go over some Delfield freezer troubleshooting to help you gain an upper hand on issues before they get serious.
The following troubleshooting guide is for the Delfield blast chillers models CV5E, CV10E, CV15E and CV15E-2.
Freezer Not Turning On
- Circuit breaker was tripped - Check that the circuit breaker hasn’t been tripped. If it has, flip the switch back and check if the unit is back on.
- Unit not plugged in - Make sure to check that the freezer is plugged into an outlet correctly.
- Outlet not powered - If the freezer isn’t turning on and is plugged in, make sure that the outlet is connected to power.
Door Not Closing
- Gasket not sealing - If the door isn’t closing properly it could be a malfunctioning gasket. Check for any cracks or if the gasket isn’t sealing properly and replace as needed.
- Hinges are broken - Check the door hinges for any misalignment or if any hinge is broken and replace these as needed.
Error Code - Evaporator Probe Alarm AL01
- Cause: Temperatures are outside of operation range for more than 30 seconds.
- Solution: Change the operation temperature parameters or replace the probe.
Error Code - Product Probe Alarm AL02
- Cause: Temperatures are outside of operation range for more than 30 seconds with a temperature chilling cycle in progress.
- Solution: Either replace the probe or change the temperature parameters.
Error Code - Cell Probe Alarm AL03
- Cause: Temperatures are outside of operation range for more than 30 seconds.
- Solution: The only solution for this type of issue is to replace the cell probe.
Error Code - Door Micro-Switch Alarm AL05
- Cause: Active input for more than 5 minutes while machine is in start.
- Solution: Check that the door is closing properly. If the door is closing correctly and the alarm is still sounding, the door microswitch will need to be replaced.
Error Code - Differential Thermal Breaker AL06
- Cause: There are multiple reasons that could cause this error. Either the input alarm was activated for more than 5 seconds, a power surge or condenser build-up could be the cause of this issue.
- Solution: manually reset the magnetothermic switch and restore it.
Error Code - Automatic Reset Kriwan Alarm AL08
- Cause: The compressor is starting and stopping repeatedly.
- Solution: Make sure that the machine has room for proper ventilation and that the condenser is clean. Try restarting the machine and then checking if it runs correctly.
Error Code - Over Temperature Alarm AL11
- Cause: An over temperature alarm will sound when the cell probe detects an over temperature.
- Solution: Check that the door is sealing correctly and the closing mechanism.
Error Code - Black-Out Alarm AL12
- Cause: A cycle was interrupted by a blackout or loss of power.
- Solution: Try silencing the alarm and resetting the machine to resolve the issue.
Error Code - Compressor Preventative Maintenance Alarm AL13
- Cause: The alarm sounds if the compressor is not running correctly and is dirty.
- Solution: Check that the compressor is in need of preventative maintenance and schedule this with a service provider.
Error Code - Power Keypad-Card Connection Alarm AL15
- Cause: There is no connection between the interface and the power card.
- Solution: Reconnect all boards and reset the machine to see if that resolves the issue.
Error Code - Maximum Pressure Switch Alarm AL16
- Cause: When the pressure gauge reaches maximum or the alarm is activated for more than 5 seconds.
- Solution: Start by trying to reset the max pressure switch. Check that the air condenser or air filter is clean. Check that the condenser fan is functional and that the condenser fan pressure switch is not faulty.
For more information on your Delfield appliances, make sure you take a look at our extensive library of manuals and diagrams.