How to Fix Radiators Not Heating Evenly
Quick Answer
Bleed the radiators, balance the system, and check the boiler pressure.
How to troubleshoot Radiators Not Heating Evenly
Radiators that do not heat evenly can make your home uncomfortable. This guide covers diagnosing and fixing the issue.
Step-by-Step Fix
- Bleed each radiator to remove trapped air.
- Check the boiler pressure is between 1 and 1.5 bar.
- Balance the system by adjusting the lockshield valves.
- Start with the radiator furthest from the boiler.
- Check for sludge buildup in the radiators.
- Flush the system if needed.
Common Error Codes
| Code | Meaning | Resolution |
|---|---|---|
| Cold at top | Trapped air | Bleed the radiator. |
| Cold at bottom | Sludge buildup | Flush the radiator. |
Frequently Asked Questions
Why are my radiators not heating evenly?
Trapped air, sludge buildup, or an unbalanced system.
How do I balance my heating system?
Adjust the lockshield valves on each radiator.