After a boiler service, your system should be operating at peak performance. However, a few simple checks on your part can help confirm the work was completed properly and catch any early issues. Doing a post-service check is a smart way to stay ahead of potential breakdowns and keep your home safe and warm.

Key Things to Check After Your Boiler Has Been Serviced

Do a Visual Inspection

Start with a general look around your boiler. Make sure:

• All panels and covers are reattached securely
  
  
• There are no signs of water leaks around the unit or pipework
  
  
• There’s no unusual damage or loose fittings
  
  

Any unexpected leaks or components left unsecured should be reported to your heating engineer straight away.

Confirm System Operation

Check your boiler’s pressure gauge. When the system is cold, it should usually read between 1 and 1.5 bar. Also monitor:

• Temperature settings to ensure they’re within your usual operating range
  
  
• That the system heats radiators and hot water consistently
  
  

If the pressure is too low or fluctuates, it may signal an underlying issue that needs addressing.

Test Safety Features

Your boiler service should include testing all safety devices, but it’s worth double-checking:

• The low water cutoff (LWCO) is operational
  
  
• Burner shutoff valves open and close without resistance
  
  
• Carbon monoxide alarms near the boiler are active and tested
  
  

These components help prevent dangerous failures and should always be working correctly.

Inspect Efficiency and Performance Factors

A quick look at these performance points can go a long way:

• Ensure the flue pipe is in good condition with no signs of leaks or corrosion
  
  
• Confirm the expansion vessel is maintaining proper pressure
  
  
• Listen for any strange noises that weren’t present before the service
  
  

Poor flue condition or an unbalanced expansion tank can compromise the boiler’s efficiency and safety.

Check Electrical Components

Scan for any damaged or exposed wiring near your boiler. Also check:

• That the electrical safety switch works when operated
  
  
• There are no signs of burnt or worn electrical contacts
  
  

Electrical faults can lead to breakdowns, so it’s worth catching them early.

Examine Mechanical Parts

Key mechanical elements to check include:

• The heat exchanger, which should be rust-free and intact
  
  
• The condensate pipe and trap, which must be clear of blockages
  
  

If the condensate line is blocked, you might experience water leaks or a boiler lockout.

Maintain a Simple Ongoing Routine

After the service, continue with light weekly or monthly checks:

• Visually inspect for leaks or changes
  
  
• Lubricate moving parts if the manufacturer recommends it
  
  
• In warmer seasons, switch off heating valves but keep the power on to avoid moisture buildup in the system
  
  

These habits help prolong your boiler’s life and improve seasonal performance.

Keep a Maintenance Log

Write down:

• The date of the service
  
  
• Who performed it
  
  
• Any issues discovered and resolved
  
  
• Any observations you make afterward
  
  

A maintenance log is especially helpful for warranty claims and future servicing, offering a clear history of the system’s care.

Looking for peace of mind after your boiler service in Newport, Telford, or Shrewsbury?

Enflame Heating & Plumbing ensures your heating system remains safe and efficient after every visit. Whether you need a follow-up check or have a question about your service, our team is here to help. Call us on 01952 300008 or fill in our contact form to speak with our engineers today.