Technical data

Code 36
AC power failure L2
Power failure in phase L2. Please check the on-site fuses.
Code 37
AC power failure L3
Power failure in phase L3. Please check the on-site fuses.
Code 38
Excess temperature liquid for temperature control
shelves
The temperature-control liquid has exceeded the upper limit. The
heating unit for the temperature-control liquid is switched off. The
heating unit is not reactivated until the temperature-control liquid
has fallen below a lower limit. The limits are set in the thermostat.
Code 39
Level liquid for temperature control fall below
There is not enough temperature-control liquid in the brine
compensation reservoir.
Code 40
Temperature sensor “ice condenser” defective or
not connected.
This error occurs when the temperature sensor is not connected
properly or if it is damaged. Please contact our service
department.
Code 41
No valid vacuum value measured. Probe not
connected or probe and/or measuring electronics
defective.
This error occurs when the heating wire of the vacuum sensor is
damaged, the electronic measuring value device is defective or the
vacuum sensor is not connected properly.
Code 43
See chapter 5.6.1.
Code 44
Temperature sensor shelf heating defective
Operating Manual Freeze Dryer ALPHA 1-4 LSC / ALPHA 2-4 LSC Troubleshooting • 79