Does your Central Heating need a Power Flush?

Does your Central Heating need a Power Flush? We know that 80% of central heating systems require a power flush. We can now test your water in the radiators or boiler to determine the content and what will need to be done.

ABOUT THE PROBLEM

When our customers are experiencing poor circulation in their homes, such as ineffective radiators, it could be caused by hydrogen in radiators, and so it is essential to accurately identify the cause of the issue to resolve it properly. This guide can help you to conduct checks which will lead to an accurate diagnosis of the circulation problem.

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The Ability Family

Identifying the Issue

  • Check if the boiler is operating correctly. Check the pressure of the burner. Does it remain alight?
  • Take a sample of radiator water. Examine it for suspended solids or discolouration which can indicate corrosion.
    • If there is a reddish tinge to the water, it indicates that iron oxide is present, suggesting active corrosion. The system may be drawing in air.
    • If there are black particles present in the water, these are most likely to be magnetite. As this is the final stage of corrosion, large deposits can be expected within the system.
    • If the water is clear water, it suggests that the system is free from active corrosion, but does not eliminate the possibility that corrosion has occurred in the past. It is possible that the circulation rate is not enough to keep debris in suspension. In this instance, you should check that the cold feed is not blocked.

Central Heating Cleaning and Power Flush Tips

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Some of our registered bodies
  • If you are dealing with an open system, check the feed and expansion cistern. Is it clean, with no signs of pumping over or sucking-in through the open vent?
  • Check the pump. Is it correctly orientated and performing satisfactorily? Open all radiator valves, and, if necessary, vent the radiators. Note if the problem appears to be localised or general.
  • See if increasing the speed of the pump improves circulation. It is highly important to identify if there any radiators which fail to heat at all. If this is the case, it indicates that the system is blocked. Check all valves for free operation. If none are sticking, they are not the cause of the blockage. If you have established this, draw a sample of water from a cold radiator to check for sludge build up.
  • Do the system radiators need frequent venting? If gas is accumulating in one or more radiators, it is important to determine whether the gas is hydrogen sulphide, hydrogen or air.

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