Mr Combi. Bedford

Hi Everyone,
My visit yesterday to Installer Show was AMAZING.
met many old friends and some new one's.

James at Drayton is going to teach me about the "Wiser 3" for a video.

Intergas is always a must, mine is 14 years only one part changed was the G Valve 4 years ago to improve efficiency.

Resideo, very old friend Steve, showed me the DT4 room stat that replaces the old T6063 1230vAC, my video to follow.

Fernox always very kindly gave me 12 water test strips, if you want one, just order the Special Offer, there is a video coming soon explaining "How to" and new regulations.

Worcester Bosch and Vaillant lots to see new this year.

See you next year
Take care
George Staszak

We Have APPs 👍

Get all 8 essential heating engineer APPs for just £4.99 each!

From Gas Rate and Gas Pipe sizing to Heat Loss calculations, Wiring Diagrams, Fault Finding Courses, and F.22 Error Codes, everything you need is at your fingertips.
Save time, work smarter, and improve your diagnostic skills.

Download all 8 apps today and carry your technical library everywhere you go!

📲 Subscribe to the Mr Combi channel for proven heating and diagnostic tips
💬 Drop a comment below — I reply to every single one!
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Take care,
George Staszak
Mr Combi

Repair pressure valve

"Find Faults 2x Faster: Why Top Engineers Follow the Sequence"

Are you tired of guessing and changing parts that don't fix the fault? In this video, I'll show you the simple sequence professional engineers use to diagnose boiler faults quickly and accurately.

Stop wasting time, money, and frustration. Learn the proven 5-step method that helps you understand how a boiler really works and identify faults with confidence.

If you want to become faster, more efficient, and more successful at fault finding, watch now and start following the SEQUENCE.

👍 Please Like this video
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Take care,
George Staszak
Mr Combi

Repair pressure valve

Without a proven fault-finding method, even experienced engineers can become confused when faced with modern boiler controls and error codes, wasting time, money, and frustrating customers.

My yellow “Fault Finding” book provides a clear, step-by-step approach to diagnosing faults quickly and accurately. It explains what to test, where to test it, and why.

Instead of guessing, installers can build confidence, improve first-time fix rates, and solve boiler problems faster, saving both themselves and their customers unnecessary expense.
Finding a fault in a modern boiler can feel like solving a puzzle without the key.

For many installers, the sheer complexity of sensors, PCBs, and hydraulic circuits is overwhelming. Without a structured guide, they often resort to "parts-changing," which wastes time and your customer's money.

👍 Please Like this video
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Take care
George Staszak
Mr Combi

If you want to fix boilers and heating order these today
👍 Please Like this video
📲 Subscribe to the Mr Combi channel for proven heating and diagnostic tips
💬 Drop a comment below — I reply to every single one!�🌐 https://mrcombi.com/�
📘 https://mrcombi.com/shop/�
🍎 Apple Apps: https://mrcombi.com/apps/
🤖 Android Apps:https://mrcombi.com/apps/

Take care,
George Staszak
Mr Combi

Don’t stand in front of a boiler with an error code, save time get the APP.
Some boilers save a history of faults, that will tell us what is wrong.

With the F.22 APP you can contact 17 boiler support lines.
The two books are packed with hints & tips on testing parts, flow charts for quick diagnosis

👍 Please Like this video
📲 Subscribe to the Mr Combi channel for proven heating and diagnostic tips
💬 Drop a comment below — I reply to every single one!�🌐 https://mrcombi.com/�
📘 https://mrcombi.com/shop/�
🍎 Apple Apps: https://mrcombi.com/apps/
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Take care,
George Staszak
Mr Combi

An Auto By Pass

How to AVOID Any Boiler That Will Fail Without an Auto By Pass Valve. It's a £30 fix

A small £30 component that can make a big difference to modern boilers, especially combies. It helps maintain correct water flow when radiator valves close, reducing strain on the pump and heat exchanger.

Use this link at 6pm and see the full version why they are compulsory.
https://www.youtube.com/

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Take care,
George Staszak
Mr Combi


How to AVOID Any Boiler That Will Fail Without an Auto By Pass Valve. It's a £30 fix

Is Your Pressure Right? The Best Boiler Settings for Bungalows 3 Bed Semis and Town Houses

Maintaining correct boiler pressure and a healthy expansion vessel is vital for a safe, efficient heating system.

The expansion vessel acts as a buffer, absorbing the increased volume of water as it heats up. Without the correct pre-charge or property-specific pressure, the safety valve may discharge, causing persistent pressure loss and damaging internal components.

While a bungalow might function well at 1.0 bar, a multi-story town house needs a higher baseline to push water to the top floor. Neglecting this balance is a hidden fault that leads to noise, cold radiators, and expensive, avoidable repairs.

The Unseen Fault Getting the pressure wrong for your specific property type is an often unseen fault that leads to noisy pipes, cold radiators, and unnecessary boiler wear.

If you're ignoring the height of your home when setting your gauge, you’re likely overlooking a simple fix for poor circulation and system inefficiency that many engineers miss during a standard service.

Homeowner or installer grab Mr Combi’s Yellow Fault Finding Book today.
Full of helpful advice written for the non expert to understand
Stop guessing, start fixing, and get your heating back on fast.

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💬 Drop a comment below — I reply to every single one!
�🌐 https://mrcombi.com/�📘 https://mrcombi.com/shop/�🍎 Apple Apps: https://mrcombi.com/apps/�🤖 Android Apps:https://mrcombi.com/apps/

Take care,
George Staszak
Mr Combi

The Ultimate Boiler Fault Finding Guide Two Books To Save You Thousands

"Tired of paying for expensive call-outs?

After 45 years in the trade, I’ve put everything I know into two essential guides.
Whether you're a trainee engineer or a DIYer looking to save thousands, these books are your ultimate toolkit.

The first covers fundamental boiler fault finding, while the second deep-dives into advanced heating controls.
I've seen so many people struggle with basic fixes because they didn't have the right flowcharts—these books solve that.

No more guesswork, just professional results.

Click the link in the description to grab your copies and start fixing boilers the right way!"

Homeowner or installer grab Mr Combi’s Yellow Fault Finding Book today.

Full of helpful advice written for the non expert to understand
Stop guessing, start fixing, and get your heating back on fast.

👍 Like this video
📲 Subscribe to the Mr Combi channel for proven heating and diagnostic tips
💬 Drop a comment below — I reply to every single one!
�🌐 https://mrcombi.com/�
📘 https://mrcombi.com/shop/�
🍎 Apple Apps: https://mrcombi.com/apps/�

🤖 Android Apps:https://mrcombi.com/apps/

Take care,
George Staszak
Mr Combi