When you have one or more leaking radiators, there are some actions you can take before the problem escalates.
How to fix the leaking radiator problem
A pinhole leak on a radiator can be a sign of internal corrosion. This can occur when debris that collects during installation hasn't been properly removed (and can occur within weeks of the system being fitted) or because of air being drawn in to the system.
To fix the problem, try the following:
- Shut off your boiler and let it cool. It isn't necessary to shut off the water; as the system cools, water will flow back out of the radiator to the boiler.
- Turn off the valves at each end of the radiator to relieve the pressure.
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Remove the radiator and leave the rest of the system running. Your manufacturer's manual should contain detailed instructions on how to do this.
- Flush out the system using a non-acidic cleaner.
- Refit the radiator.
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