How To Fix A Leaking Radiator

A leaking radiator can be the reason for your nightmares because it is something that you cannot ignore. If there is a leaking radiator at your home, there is nothing else that you can attend to before making sure that the leak is fixed. 

The leak is capable of causing a lot of damage in terms of the electronics that you own and can wreck the entire flooring. However, if you have a leaking radiator at your home, you can follow this step by step guide to fix it. 

Even if you are all set to call a professional, you need to make some makeshift amends to stop until the person arrives.

How To Fix A Leaking Radiator In #4 Easy Steps?

The first thing to do when you are fixing a radiator leak is to prepare yourself for the awaiting outcomes. These leaks can cause outbursts of water that can drench you repeatedly. It would be best if you gathered some towels and buckets and then move ahead with the quest of fixing it.

You do not need any fancy equipment to fix it. If you place the towels and buckets correctly, you are all set!

Find The Source Of Your Radiator Leak

It gets challenging to ascertain the exact spot of the leak. The entire radiator gets wet, and thus it causes a lot of confusion. The best way to move ahead in this situation is by drying up the radiator once. When the radiator is all dry, you can place a dry towel around it so that whenever the water flows, the towel will get wet around that spot.

Is Your Radiator Valve Leaking?

If you have concluded that your radiator valve is leaking, you are in luck. Fixing a radiator valve is a straightforward process. These leaks happen when the spindle placed around the valve is all worked up and undergoes minor wear and tear. These irregularities are responsible for these small leaks.

To fix it, you have to close the valve completely. 

How To Repair A Leaking Radiator Valve?

As mentioned above, you have to ensure that the valve is completely closed. You can follow these steps to obtain the perfect results.

  1. The first step is to let the water drain until a point below the leak.
  2. Ensure that both the supply valve and lockshield valve are shut.
  3. Keep your gear (towels and buckets) ready.
  4. Undo the union bolt so that you can empty the radiator from the bleed valve.
  5. Wrap PTFE tape multiple times around the valve tail.
  6. Retighten the union nut and open the supply and lockshield valve.
  7. Once the water supply is restored, check for any more leaks.
  8. If there are not, your valve leak is fixed.

Do You Need To Replace A Radiator Valve?

If the valve has some other intricate defect, it will be best to replace it. You have to purchase the same product so that it can fit perfectly. Once you have the same effect, you can follow the same procedure to turn the valves off. The only additional step is to drain all the water from central heating and then to turn it back on again only after the new valve is in place.

The entire procedure almost remains the same as fixing a leak. In this case, you wrap a new valve with PTFE tape instead of the old one.

Is Your Radiator Leaking From The Spindle?

A spindle is a juncture between the pipework and a radiator. It is a widespread leak that you can fix without any expertise. A spanner is all you need to tighten the gland nut back in place. This process should ideally stop the leak, but you must undo the nut and wrap some PTFE tape around if it does not. Once the PTFE covering is done, the spindle will have a tighter connection.

There are cases in which the spindle malfunctions because of a faulty valve. In these cases, you should seek professional help.

Is The Radiator Valve Or Gland The Cause Of The Leak?

In most cases, if there is a leak at the coupling valve, it just needs a few arrangements from a spanner. However, if it does not work, you might have to replace the olives which constitute the coupling.

It is a very common leak that occurs very frequently. It would be best if you fixed it yourself so that you can avoid the few extra bucks from your budget.

How To Repair A Leaking Radiator Gland?

The steps to fix it incorporate a fundamental procedure. 

  1. You have to turn down the water supply and get the nut that is present. The steps to turn the water supply off remain the same.
  2. Then, you take this nut and replace the olives that are present inside.
  3. Once these olives are replaced, you can use some PTFE tape to tighten the arrangement so that the nut does not fall off.
  4. If your leak is still not fixed, it might signal towards a faulty radiator valve in its entirety, and you will need a replacement.

Is Your Radiator Leaking Because Of Corrosion?

With all the technical glitches that can make their appearance, corrosion is a veteran when it comes to rotten spindles. This corrosion is caused due to the emergence of sludge inside the spindles that begins to decay the covering. This leak is commonly known as the pinhole leak.

There are no permanent solutions to this type of leak as the product is physically damaged. The only way forward is to replace the damaged radiator with a new one. When the new part is installed, you can ensure adding rust and corrosion inhibitors so that this problem does not knock on your door again.

How To Repair A Leaking Pipe Joint?

Central heating systems account for compression valves that join the pipes to the respective radiators. If a leak occurs in such spaces, a spanner is the only tool you need to tighten the valve and fix the leak.

If this does not work, you can follow the same procedure of retightening the nut by using PTFE tape. 

Know When To Call A Pro

You can try all the above mentioned methods to try your hand at the problematic leaks, but if the flow stays incessant, you should consult a professional. It would help if you did not meddle with the symmetry of these arrangements, as it can result in something catastrophic.

You should know when to quit, and that will be the right time to consult a professional and avail their services. Some of these fixes are temporary, and you might have to call in someone to give it a permanent solution.

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Last Updated on May 3, 2021

Frequently Asked Questions

Are radiator leaks expensive to fix?

It depends on the type of leak that has happened. If it is an ordinary leak, you will need some PTFE Tape and a spanner. However, if there is a problem with the valve, you will have to incur a replacement cost.

Why is my radiator leaking from the bottom?

Corrosion is one of the most prominent reasons for this problem. Since the product is physically damaged, the leak can occur anywhere.


Author: Indra Gupta

Indra is an in-house writer with a love of Newcastle United and all things sustainable.

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