Memmert HPP 108/749 Constant climate chamber (Generation 2003) - Manual (Page 39)

39
Malfunctions, warning and error messages
6. Malfunctions, warning and error messages
Warning!
After removing covers, live parts may be exposed. You may receive
an electric shock if you touch these parts. Malfunctions requiring in-
tervention inside the appliance may only be rectified by electricians.
You must read the separate service manual for this.
Do not try and solve the error yourself, but contact an authorised customer service point for
MEMMERT appliances or contact the MEMMERT customer services department directly (see
page 2 ).
In case of enquiries, please always specify the model and appliance number on the nameplate
(see page 14 ).
6.1 Warning messages temperature monitoring/humidification
See page 46 .
Error description Cause of error Rectifying errors See
General faults
Controller display does
not light up
Power supply
interrupted
Check
power supply
Miniature fuse or appliance
fuse faulty
Check fuse, replace if
necessary
Service
manual
Mainboard faulty Replace
power module
Service
manual
Appliance cannot be
operated
Appliance locked by UserID
card
Undo lock with UserID
card
page 55
Push/turn control faulty Replace main switch
module with push/turn
control
Service
manual
Error messages in monitoring display
Caution icon flashes
Monitoring controller has
switched off heater, since
temperature difference
between operating and
monitoring controller is too
small
Increase temperature
difference between
monitoring temperature
and working tempera-
ture.
page 44
Replace Pt100 tem-
perature sensor of
monitoring controller if
necessary
Service
manual
Malfunctions in humidification/dehumidification
Humidification
doesn't work
No water supply Fill water tank, check
that tube is correctly
connected
page 20
Dehumidification
doesn't work
Fault in the dehumidifica-
tion system
Service
manual