English translation of the Norwegian library. Product names and original documents retain their source language. Model-specific maintenance steps have been reviewed; other text uses assisted translation. Check the original manual before work.
Coverage: Trinnvis batteribytte
Battery/power: 3 × CR123, 3 V lithium
The black variant's own page specifically refers to VESTA-423 for manual and instructions.
Technical drawing is not installed here yet. Open the associated original manual and control model before demounting.
Check that the drawing and any variations in the original manual are consistent with the device. Sources checked 08.09.2026. The step marked as derived is not an explicit disunity instruction from the manufacturer.
Connection type is not confirmed: check the model and manual before assuming it uses a battery. Record the current fault and visible changes; leave electrical troubleshooting to the installer.
Choose the symptom and check the model scope before following the steps. This is troubleshooting, not a list of confirmed product defects.
General advice — model-specific fault procedure missing.
Applies to: General advice for the sensor type — not a verified procedure for this model. Use the model manual for opening, battery type, testing and settings.
Check the result: An agreed test is registered from the correct detector.
Stop and get help: For repeated alarms or missed detection, contact the installer. Do not change sensitivity or position without checking coverage.
Background source / example model (not model verification): support.ajax.systems — open documentation