Is it the responsibility of the property to clean the filter screen with radiator?

Answer: This is not the responsibility of the property.

Fifty-second water supply, power supply, gas supply, heating, communications, cable television and other units shall bear the responsibility for the maintenance and conservation of related pipelines and facilities in the property management area according to law.

Radiator cleaning belongs to the personal part of heating system, not to the scope of property management and maintenance.