Troubleshooting - Thermo Scientific VARIOKLAV 25T Operating Manual

12 Troubleshooting

The program control is equipped with a sophisticated error management system. If
an error occurs during program execution, an error message is shown in the cycle
display (16) or the current values display (13).
If an error occurs:
♦ Memorize or write down the error message.
♦ Press the START/STOP key (19).
This will interrupt the program cycle. The sterilizer is returned to a safe state.
♦ Before restarting the program, troubleshoot the problem (see Table 5).
Message in the
cycle display
Error 2
Lock open
Error 3
No p.- buildup
Error 4
Seal defective
Error 6
Compressor
Error 9
Running dry
Error 10
Control error
Error 12
Water low
03/2007
12 Troubleshooting
Meaning
Locking levers do not attain their
maximum closing positions.
Door seal cannot build pressure:
Compressor missing or defective, or
pressure line missing or interrupted,
or door seal missing
Door seal builds but cannot keep
pressure:
Seal leaking, or
pressure tank leaking, or
pressure line leaking.
Door seal loses pressure during
sterilization:
Compressor defective.
The heater has overheated because
the jacket space has run dry.
Or the overtemperature limiter was
set too low (required setting: 170 °C)
and was therefore activated.
Internal program control error.
Feed water tank empty, or
valves (Y3, Y6.1, Y6.2) defective, or
external water supply (option)
defective.
55
Remedy
Open and close door; if
necessary, contact
after-sales service
Contact after-sales
service.
Contact after-sales
service:
Have leaking part
replaced
Contact after-sales
service.
Contact after-sales
service.
Turn off and restart the
sterilizer; contact after-
sales service.
Fill feed water tank or
contact after-sales
service; check external
water supply where
applicable.
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