If Your Heating System Isn't Working, Check These Possible Causes First

1. Improper Installation Due to Unauthorized Modifications: When users install or modify radiators without authorization—due to non-standard installation, improper placement, or excessive bends—it can cause air locks and excessive flow resistance. This alters the operating conditions and design parameters of the heating system, resulting in uneven heat distribution from the radiators and hydraulic imbalance. Not only does this prevent the user’s own radiators from heating properly, but it also affects the operation of the entire system.

2. Aging Home Heating Systems: Indoor heating systems that have been in use for a long time, combined with a lack of timely maintenance, can lead to internal pipe corrosion and severe blockages caused by scale buildup, which reduces heat transfer efficiency and results in low indoor temperatures. Therefore, residents should have professionals flush or replace heating components before the heating season begins.

3. Clogged Filters or Radiator Piping: A clogged filter in the underfloor heating manifold, blocked underfloor heating pipes, or clogged radiators can impede the smooth circulation of heating water, resulting in lower indoor temperatures. Residents should contact professional maintenance personnel to clean the underfloor heating filter. Depending on actual conditions, the filter should be cleaned at least once a year, and the underfloor heating system should ideally be flushed every 2–3 years.