Ravenheat
System Balancing / Flow Distribution Fault
Radiators or warm air outlets heat unevenly; some are hot, others remain cold.
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Possible Causes
Air trapped in radiators, Partially closed radiator valves, Sludge build-up in certain circuits, Pump not sized correctly or running at wrong speed
How to Fix / Troubleshooting
Safety: Radiators can be hot; use a cloth when bleeding.
User checks:
- Bleed radiators starting from the highest point in the system.
- Ensure all radiator valves are open and thermostatic radiator valves are not stuck.
Technician checks:
- Balance the system by adjusting lockshield valves.
- Check pump speed and performance.
- Flush or clean circuits with poor flow.
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Repair Difficulty
Easy
2/5
Required Part
Circulation Pump
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