GB
6 . 2 F U R T H E R E R R O R S I T U AT I O N S
Symptom
Cause / Remedy
The device cannot be turned on, the display stays
dark and empty.
Please check if the socket and mains cord conduct
line voltage, if necessary check the mains fuse
(see chapter 2.2.1). If necessary please contact
your service partner.
A permanent alarm signal resounds after connecting
the device to the mains power supply.
The control unit’s program memory has the wrong
content. Please contact your service partner.
The menu to set the time appears every time the
device is turned on.
The control unit’s clock is powered by a battery
(its regular life-span averages at more than 5 years).
The battery is empty and must be replaced.
Please contact your service partner.
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Содержание QRS-101
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