Heating failure in winter
Call: The heating stays cold; several flats may be affected.
Qualification logic
- Record address, callback number and affected unit.
- Clarify outside temperature, hot water and extent of the outage.
- First rule out gas smell, smoke or other immediate danger.
- Record system type and, if known, manufacturer, model and error code.
Outcome: Danger → 112/safety instruction. Otherwise urgency class and callback request follow the approved company rules; no remote diagnosis.