Freeze-dryer Epsilon 1-4 LSCplus
Freeze-dryer Epsilon 2-4 LSCplus
7 Malfunctions and error correction
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Version 07/2022, Rev. 3.0 of 20/07/2022
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Translation of the original operating manual
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7
Malfunctions and error correction
Malfunctions are displayed in the dialogue box "Process & equipment
messages" (see chapter 7.2 - "Process and error messages"). An acoustic
signal sounds when an error message is generated.
• Eliminate the source of the problem (see the following chapter).
• Acknowledge the error message.
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7.1
General malfunctions
Type of error
Possible reason
Correction
No indication on the display
•
No power in the mains supply
(see chapter 7.1.1 - "Power
failure").
•
Power cord is not plugged in.
•
Fuses have tripped.
•
The mains power switch is set
to off.
•
Check the mains power supply
fuse.
•
Plug in the power cord correctly.
•
Check the on-site fuses
•
Switch mains power switch ON.
The touchpanel does not react at all
or it does not react correctly
•
The sensitivity of the
touchpanel is misadjusted.
•
Contact the service department
(see chapter 7.3 - "Service
contact")
The password input fails
•
The password is not correct.
•
Inform the administrator.
•
If you have lost the administrator
password: contact the service
department (see chapter 7.3 -
"Service contact")
Insufficient vacuum
•
Incorrect connection of the
small flange connection(s).
•
Loosen the connection. Place
the centring ring with the inner
sealing ring in a centred manner
between the flange connections
and connect it with the clamping
ring. Ensure that the centring
ring neither slips out of place nor
gets jammed.
•
Dirty or damaged lid or door
seal.
•
Clean the lid or door seal and
replace it if necessary.
•
The ground-in stopper of the
attached drying chamber is not
installed correctly.
•
Grease the ground-in stopper
evenly and over the entire
sealing surface with vacuum
grease.
Leakage in the media drain valve
•
The media drain valve is soiled
with drying residues or wool
particles from cleaning cloths.
•
The O-rings are worn
•
Clean the media drain valve
(see chapter 8.1.3 - "Aeration
valve") and replace it if
necessary.
•
Replace the O-rings.
Leakage in a rubber valve
•
The valve is soiled.
•
Check the valves individually
(see chapter 7.1.2.4 - "Rubber
valves")
