Boiler Leaking Water? Here’s How to Fix It!
Is your boiler leaking water? It’s a common problem that can lead to serious issues if not resolved quickly. A leaking boiler can cause:
- Water damage to your home.
- Reduced heating efficiency and higher energy bills.
- Electrical hazards, posing a danger to your household.
If you’ve noticed your boiler leaking water, it’s essential to act fast. This guide explains the causes and fixes for a leaking boiler and when to call a professional.
Common Causes of Boiler Leaks and Fixes
Corroded Components
- Cause: Pipes or internal parts may rust over time, leading to leaks.
- Fix: Replace the corroded parts. If corrosion is widespread, consider replacing the boiler entirely.
High Boiler Pressure
- Cause: Excess pressure forces water out through the pressure relief valve.
- Fix:
- Check the pressure gauge.
- Bleed radiators to release trapped air and lower pressure.
- Adjust the boiler settings following the manufacturer’s guide.
Faulty Heat Exchanger
- Cause: Cracks in the heat exchanger, common in lower-quality models, can lead to leaks.
- Fix: Replace the heat exchanger (this may be costly). Consider upgrading to a high-quality boiler for long-term savings.
Loose Joints
- Cause: Expansion and contraction from temperature changes can loosen pipe joints.
- Fix: Tighten or replace the loose joints as needed.
High Temperature
- Cause: Malfunctioning temperature control valves (TCVs) can cause water leaks.
- Fix: Adjust the boiler’s water temperature using the TCV settings.
Pump Seals
- Cause: Leaks around the pump often indicate worn or damaged seals.
- Fix: Reseal or replace the pump as required.
Overflow Pipe Issues
- Cause: A damaged float valve can lead to water overflow.
- Fix: Drain the tank and replace the float valve.
Is a Boiler Leak Dangerous?
Yes, a leaking boiler can pose significant risks:
- Electrical Hazards: Water near electrical components can cause short circuits or fires.
- Property Damage: Water leaks can ruin floors, walls, and ceilings.
- Reduced Efficiency: A leak wastes water and energy, increasing costs.
If you notice a leak, turn off the boiler and contact our Gas Safe Engineer immediately.
Still Leaking? Contact a Gas Safe Engineer!
If you can’t identify or fix the problem:
- Turn off the water supply to prevent further damage.
- Call a professional to diagnose and repair the issue safely.
Considering a New Boiler?
When repairs are no longer cost-effective, it may be time for an upgrade.
Top Boiler Brands
| Brand | Model | Efficiency | Features | Eco Impact |
|---|---|---|---|---|
| Vaillant | ecoTEC Plus | A-rated | Quiet, eco-friendly | Reduced emissions |
| Viessmann | Vitodens 100-W | A-rated | Compact, smart-compatible | Low emissions |
| Alpha | E-Tec Plus | A-rated | Cost-effective, compact | Energy-saving |
| Ideal | Logic Plus | A-rated | Easy installation, user-friendly | Efficient energy use |
| Worcester Bosch | Greenstar i | A-rated | Robust, smart controls | Eco-conscious design |
Why Choose Mera Boiler?
- Free Quotes: Get an instant price estimate online.
- Fast Installation: Next-day fitting is available for most locations.
- Flexible Finance: Choose 0% APR options for affordable monthly payments.
Boiler Maintenance Tips
- Schedule regular servicing (starting from £99 at Mera Boiler).
- Monitor boiler pressure and temperature levels.
- Address small leaks promptly to avoid bigger problems later.
