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The 24 Hour Boiler Repairs call centre is open right around the clock. Our team of friendly operators are on hand to take your call and dispatch a highly trained engineer to your door. Our commitment to dealing quickly with all boiler emergencies, regardless of when or where they happen, means we have one of the best response times around. So, rest assured, when you get in contact with 24 Hour Boiler Repairs, your problem will be dealt with at speed by a team of highly skilled professionals. If you have an issue with your heating system, get in touch straight away.

Address
24 Hour Boiler Repairs
86-90 Paul Street
London
EC2A 4NE

Phone
0203 868 6251

Email
info@24hourboilerrepairs.co.uk

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Need a Gas Safe engineer in London ASAP? Call us 24 Hours a day!

Myson

Myson Boiler Repairs London

Gas Safe registered engineers · 24/7 call handling · London wide

Tell us the symptoms and model. We will advise the safest next step.

  • Experienced Myson Boiler Repairs specialists
  • Available 24 hours a day, 7 days a week
  • Insurance approved
  • All parts guaranteed for a year
  • Fully Gas Safe trained engineers

Lines open now

0203 868 6251

Have your Myson model name and symptoms ready.

★★★★★4.6/5 on Google

Common searches include Myson boiler not working, Myson boiler lockout, Myson Apollo fault, Myson Midas no hot water, Myson Marathon problems, and Myson boiler reset. If you can, tell us the model name from the data badge and describe what the boiler is doing.

We cover Myson boiler repairs in London, including lockouts, no heating, no hot water, ignition faults and pilot light problems. We also offer boiler servicing and boiler installation across London.

Safety First

Smell gas? Turn off the gas supply at the meter if it is safe to do so. Open windows. Leave the property. Call the National Gas Emergency Service on 0800 111 999. Do not use switches, and do not use naked flames.

CO alarm sounding? Stop using the boiler. Open doors and windows. Leave the property. Call the National Gas Emergency Service on 0800 111 999. If anyone is drowsy, breathless or has a headache, call 999 as well. Do not re-enter until you are told it is safe.

Boiler leaking heavily? Turn off the boiler at the controls. If safe, turn off the water supply. Call an engineer.

★★★★★Resourceful and helpful with the issue we had with our boilerKatarina Jezovnik · Google review★★★★★The engineer was very thorough and explained what was being done at each stage.S Thanu · Google review★★★★★Excellent from start to finish.George · Google review

Quick Checks Before You Call

Before calling an engineer, these safe checks may resolve simple issues with your Myson boiler.

Check the gas supply

Is gas working at other appliances in your home? If not, check your meter and any prepayment credit.

Check the pressure gauge

On sealed system models, pressure should read around 1.0 to 1.5 bar when cold. If it is low, you may need to top up using the filling loop (location varies by installation).

Check the thermostat

Is the room thermostat set above current room temperature? Is the boiler thermostat turned up?

Check the timer or programmer

Is the heating scheduled to be on? Check the clock is set correctly.

Check the pilot light

On older Myson models with a permanent pilot, look through the inspection window. If the pilot is out, follow the lighting instructions on the boiler. If it will not stay lit, call an engineer.

Try a reset (if lockout)

If the boiler has locked out, turn the thermostat to minimum, wait 30 seconds, then turn back up. On some models, there is a reset button on the control box. Do not reset more than twice. If it keeps locking out, call an engineer.

Gas Safe registered boiler engineers

Fully Gas Safe trained engineers

Every gas repair is carried out by a Gas Safe registered engineer. You are told what needs doing and what it costs before anything starts.

★★★★★4.6/5 on Google

Myson Fault Indicators Explained

Most Myson boilers do not have digital fault code displays. Instead, they use indicator lights and lockout conditions. The meaning varies by model (Apollo, Midas, Marathon, Velaire). Use the table below as a quick guide only.

If you smell gas, do not reset. Follow the Safety First steps above and call for help.

Indicator / symptom/Typical meaning/Safest next step

Pilot light out

Pilot has extinguished. May be thermocouple, gas valve, or draught issue. Try relighting following boiler instructions. If it won’t stay lit, call an engineer.

Lockout (no ignition)

Boiler attempted to light but failed. May be ignition electrode, gas valve, or air pressure switch. Try one reset. If it locks out again, call an engineer.

Fan runs but no ignition

Air pressure switch or ignition circuit fault. Do not keep resetting. Call an engineer.

Overheat lockout

Boiler overheated and shut down for safety. May be circulation, pump, or thermostat issue. Allow to cool. Try one reset. If it returns, call an engineer to check circulation.

No power / no lights

Electrical supply issue or fuse blown. Check the fused spur and boiler fuse. If power is present, call an engineer.

Symptom not listed

Myson boilers vary by model and age. Call us with the model name and symptoms and we will advise the safest next step.

Note: Myson boilers vary widely by model and age. Tell us the model name and what you can see, and we will advise the safest next step.

Not sure which fault you have?

Call with your model name and what the boiler is doing. We will tell you what is likely involved before anyone attends.

0203 868 6251

Most Searched Problems

Tell us the model name and symptoms and we will confirm the safest next step.

Myson boiler not firing

Often caused by air pressure switch failure (common on balanced flue models), ignition electrode wear, or gas valve faults. The fan may run but the boiler fails to ignite. Try one reset. If the boiler still fails to ignite, call an engineer.

Myson pilot light keeps going out

Usually caused by a faulty thermocouple. The thermocouple senses the pilot flame and allows gas to flow. If worn or dirty, it fails to detect the flame and shuts off the gas. An engineer can test and replace it.

Myson boiler no hot water

On combi models (Midas), the diverter valve switches water between heating and hot water. If stuck, you may have heating but no hot water. On system boilers (Apollo, Marathon), check the cylinder thermostat and motorised valves.

Myson boiler making noise

Banging or kettling noises often indicate limescale buildup in the heat exchanger. Gurgling may suggest air in the system. Both require engineer investigation.

Why Myson Boilers Develop Faults

Age

Myson boilers were manufactured from the late 1980s to late 1990s. Most units still in service are now 25 to 35 years old. Component failure is increasingly common.

Parts availability

Some Myson parts are now obsolete or hard to source. Common spares like thermocouples, ignition electrodes, and diaphragms are usually available. PCBs and gas valves may require refurbished or pattern parts.

Lack of servicing

Skipping annual services allows small problems to become bigger faults. Servicing keeps components clean and calibrated.

System sludge

Dirty system water circulates debris through the boiler. This clogs heat exchangers and damages pumps. A powerflush can help extend boiler life.

Myson Models We Repair

Our engineers work on all Myson gas boiler models including:

Myson boiler repairs London We repair every Myson model Current ranges and older units, subject to parts availability
Apollo range Apollo 15/30 Si, Apollo 30 Si, Apollo 40 Si, Apollo 50 Si, Apollo 60B, Apollo Fanfare
Midas range Midas Si, Midas SFi, Midas b (combi models)
Marathon range Marathon 400 to 1500 (floor standing)
Other models Velaire, Housewarmer, Orion, and older Myson units

Myson boilers were manufactured in the UK and later became part of Baxi. If you are unsure of your model, check the data badge on the front or underside of the boiler casing. It will show the model name and GC number.

Repair or Replace Your Myson Boiler?

Myson boilers are no longer manufactured and most are now over 25 years old. A repair may make sense if the fault is straightforward and parts are available (thermocouple, ignition electrode, diaphragm). However, repeated breakdowns, major component failures (heat exchanger, PCB, gas valve), or difficulty sourcing parts typically make replacement the better option.

Modern boilers are significantly more efficient. Replacing an old Myson with a new condensing boiler could reduce your gas bills by 20 to 30 percent.

We can advise whether repair or replacement is the better option for your situation. If a new boiler is needed, we offer boiler installation with a range of manufacturers.

Our engineers give honest assessments. If we cannot source parts or the repair is not cost effective, we will tell you.

Annual Servicing

Annual servicing keeps your Myson boiler running safely and extends its working life. We recommend servicing every 12 months to catch problems early. Book a service here.

Landlords and Letting Agents

Landlords must have gas appliances checked annually by a Gas Safe registered engineer. We provide CP12 certificates for landlords across London.

Related Services

Emergency boiler repairs Breakdowns, lockouts and leaks Boiler servicing London Annual service and safety checks Boiler installation London Replacements and new fitting Power flush London Cold radiators and system sludge Landlord gas safety certificate (CP12) Certification across London London areas we cover Book an engineer in your borough

What customers say

Verified Google reviews. 4.6 out of 5.

★★★★★

Fix the boiler same day great job life saver

B M Sidratul MuntahaGoogle review
★★★★★

Perfect service and professional engineer!

Halil AtarkanGoogle review
★★★★★

Really impressed with the boiler repair service. Clear communication from the start and no surprises with pricing. The engineer was friendly, knowledgeable and got everything sorted efficiently.

Nishanth ThachemaGoogle review

Speak to Our Team

Lines are open 24 hours. Tell us the model and symptoms. We will advise the safest next step and, if needed, send an engineer.

Call 0203 868 6251

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Gas Safe registered · 24/7 call handling · Quote before work
24 Hour Boiler Repairs, 86-90 Paul Street, London EC2A 4NE
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Specialist for all boilers including:

Google reviews

★★★★★4.6/5 on Google
★★★★★

Booked them in for a power flush after ongoing heating issues. The engineer was very thorough and explained what was being done at each stage. We noticed a huge difference in how quickly the radiators now heat up.

S ThanuGoogle review
★★★★★

Used this company after being recommended and I’m glad I did. The engineer was punctual, honest about costs and carried out the work to a very high standard. Felt like a trustworthy service.

Siva YelakarajulaGoogle review
★★★★★

Really impressed with the boiler repair service. Clear communication from the start and no surprises with pricing. The engineer was friendly, knowledgeable and got everything sorted efficiently.

Nishanth ThachemaGoogle review

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