Operating Manual Freeze Dryer ALPHA 1-2 LDplus Error Correction • 53
or in case it is defective. Please contact our service department.
Temperature sensor “defrosting heater” defective
This error occurs in case the temperature sensor is not connected properly
or in case it is defective. Please contact our service department.
Mains failure
The system detects a mains failure when the power supply is interrupted
under operating conditions (run mode). Once power supply is re-
established, the process will be continued. Process times will be reset to
zero. Set values for control purposes remain unaffected.
Factory settings loaded
All settings are reset to the delivery status of the unit. The factory settings
are loaded in case the corresponding command is executed in the service
menu or in case of an error in the parameter memory.
IO communication error (0x20)
Error in the IO module LDplus EA
Please contact our service department.
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