Troubleshooting Common Hydronic Heating Issues and How to Fix Them

Hydronic heating systems are reliable and efficient—but like any system, they can develop issues over time. Here’s how to spot and solve the most common problems.
1. No Heat or Inconsistent Heating
Check for air trapped in the system or a malfunctioning thermostat. Bleeding the radiators may restore proper circulation.
2. Noisy Pipes or Radiators
Banging or whistling sounds may indicate trapped air or scale build-up in the pipes. Regular flushing can resolve this.
3. Leaking Valves or Pipes
Leaks can stem from old seals or high system pressure. Shut off the system and call a professional to prevent further damage.
4. Cold Radiators Despite a Running Boiler
This could signal sludge build-up or a faulty pump. Flushing the system or replacing the pump may be necessary.
5. Uneven Heating Across Rooms
Balancing the system by adjusting radiator valves ensures even heat distribution and better comfort.
If you're unsure, always call a certified HVAC technician—especially during Canadian winters, when reliable heat is essential.
MORE ARTICLES
Top HVAC Maintenance Mistakes and How to Avoid Them
A little HVAC maintenance goes a long way—but only if you're doing it right. Here are the top mistakes Canadian homeowners make and how to steer clear of them.
READ MOREWhy Are A2L Refrigerants Better for the Environment and the Future of the HVAC Industry?
As the HVAC industry undergoes a significant transition toward sustainability, A2L refrigerants are emerging as a key solution for reducing environmental impact.
READ MORECustom Sheet Metal Solutions: When Off-the-Shelf Won’t Cut It
In HVAC and hydronic systems, standard ductwork and fittings don’t always fit unique architectural designs or retrofit projects. That’s where custom sheet metal fabrication comes in. Metalworks specializes in precision-crafted sheet metal solutions that ensure optimal airflow, efficiency, and longevity.
READ MORE