Memmert TTC 256 Temperature test chamber (Generation 2003) - Manual (Page 44)

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Malfunctions and error messages
6. Malfunctions and error messages
Warning!
After removing covers, voltage-carrying parts may be exposed. You
may receive an electric shock if you touch these parts. Malfunctions
requiring intervention inside the appliance may only be rectified by
electricians. Read the separate service manual for this.
Do not try to rectify the error yourself, but contact an authorised customer service point for
MEMMERT appliances or contact the customer services department of the company MEM-
MERT directly (see page 2).
For service enquiries, please always specify the chamber type appliance number on the name-
plate (see page 16 .
6.1 Error in the temperature monitoring / humidity system
See chapter Warning messages on page 51 and Fig. 20 on page 28 .
6.2 System/ appliance errors
Error Possible causes Rectification
Nothing shows on display
although test chamber is
switched on.
Power supply inter-
rupted
Check power supply
Appliance error Contact Customer Service
Appliance cannot be operated Test chamber locked
with user-ID card
Unlock test chamber with user-ID
card (see page 60 ).
Icon flashes
Temperature monitor-
ing (TWW, ASF) has
been triggered
See chapter Temperature moni-
toring and safety equipment
from page 48
Icon flashes and display
rh empty
Water tank empty Fill water tank (see page 22 )
Error (E...) in display Appliance / system
error
Contact Customer Service
Chamber interior and external
fan not working
Mains adapter defec-
tive
Contact Customer Service
Temperature fluctuates Cooling unit iced up Set shorter defrosting intervals in
SETUP - Defrost (see Kapitel 7.5
Automatic defrosting system auf
Seite 54
Temperature cannot be set
lower than 10 °C or not higher
than 95 °C.
Disable humidification and dehu-
midification by setting humidity
setpoint to “OFF”.