Silvercrest COCOON M1450 TWIN - Manual (Page 41)

Symptom Possible cause Solution
Display remains dark. Batteries inserted incorrectly. Check the position of the
batteries

(see “2 Installation”).
Batteries not charged. Charge batteries
Handset switched off. Switch on the handset
No power supply. Check that power is getting
to the unit correctly.
No tone. Telephone cable incorrectly
connected or faulty. Check the connection of the
telephone cable

(see “2 Installation”).
Another handset is using
the line. Wait until the other

handset hangs up.
The icon is flashing. Handset out of range. Take the handset closer to
the base unit.
The base has no
power supply. Check the power supply to
the base unit.
The handset is not registered
to the base. Register the handset to the
base unit (see “8.1
Registering an additional
handset”).
Base unit or handset
not ringing. The ringer volume is off or
too low. Adjust the ringer volume

(see “4.14 Setting the ringer
volume on the handset” and
“7.1 Setting the ringer melody
and ringer volume on the
base unit”).
No connection despite good
tone quality. The dialling mode is wrong. Check the dialling mode

(see “7.4 Setting the dialling
mode”).
Not possible to forward calls
in a private exchange. The flash time is too short. Adjust the telephone to a
long flash time (see “7.2 The
recall key (R)”).
Telephone does not react
when a key is pressed. Program error. Remove the batteries, wait
1 minute and reinsert them.
"Incorrect PIN" in the display. An incorrect PIN has
been entered.
Check PIN.
Two warning beeps from the
base unit when it is plugged
into the 230V mains. The maximum number of
handsets has already been
registered. No more
handsets can be registered. See “8.2 Deregistering a
handset”
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Cocoon M1450 TWIN Troubleshooting
ENGLISH