Mr Combi. Bedford

With Hammad-Chaudhry – I just got recognised as one of their top fans! 🎉 Well done, thank you very much, George Staszak 👍❤

Fernox F1
Adding inhibitor protects your heating system by preventing corrosion, sludge and limescale.

It helps your boiler run quieter, heat your home more efficiently, last longer, and greatly reduces the risk of expensive breakdowns, repairs and premature replacement.

Tuesday 11 August I am starting 1st of 8 Vaillant F Codes on
Y Tube 5pm and F Book 7pm

"Mr Combi Apps are made by an engineer for engineers and are opened over 4,000 times every month by engineers and installers."

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The Correct Answer is:-

All 230vAC (Analogue) room stats must have the following 4 wires.

Common (The wire from the programmer (CH ON) often T4

Switched Live (The wire goes to a valve [brown / white wire] to move the motor,
or to a combi Boiler SW.L to ignite.

A Natural (Blue)
An Earth (Yellow-Green)

No one got the error of when a BLUE or EARTH wire is carrying voltage
230vAC, it MUST be sleeved or coloured insulating tape to show it’s LIVE!!!🙀

Thanks for taking part, another question on Monday

"Mr Combi Apps are made by an engineer for engineers and are opened over 4,000 times every month by engineers and installers."

�🍎 Apple Apps: https://mrcombi.com/apps/

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YouTube: https://www.youtube.com/

🔔 New videos almost every week
Subscribe and never miss the next fault-finding guide!

Vaillant fault codes Explained:

The Mr Combi F.22 Error Code App covers hundreds of faults from 17 leading manufacturers with causes, fixes and flow charts. A must-have tool for installers and homeowners.

Join thousands of pros and download all 8 APPs today on iOS or Android!

The F.22 Fault Finder App! It contains hundreds of fault codes from the UK's leading boiler manufacturers, diagnostic flow charts, and Technical Support telephone numbers.

It's an essential tool for every heating engineer and could save you hours of fault-finding on every job. The download link is in the description below.

I'll help you find the fault faster, avoid costly mistakes, and repair boilers with confidence.

"Mr Combi Apps are made by an engineer for engineers and are opened over 4,000 times every month by engineers and installers."

🍎 Apple Apps: https://mrcombi.com/apps/

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

YouTube: https://www.youtube.com/

🔔 New videos almost every week
Subscribe and never miss the next fault-finding guide!

Diesel cars or vans struggling to start in cold damp weather!

Before you call recovery or replace expensive parts,
watch this 2-minute video.
It could save you hundreds of pounds.

If you found this video helpful, please subscribe to the Mr Combi Training YouTube channel.
With over 50 years of experience as an installer, breakdown engineer and trainer, I share practical, no-nonsense advice to help you diagnose faults faster, avoid expensive repairs, improve reliability to save money.

🔔 New videos almost every week – Subscribe so you never miss the next one.

🍎 Apple Apps: https://mrcombi.com/apps/

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

YouTube:- https://www.youtube.com/

Wiring Diagrams and 4 Flow Charts to Fix It 1st Time"

Tired of guessing complex boiler wiring?

The Mr Combi Wiring Diagrams APP is the ultimate tool for installers at all levels.
It features 20 high-quality, full-colour diagrams that are incredibly easy to use on-site.
Stop wasting time, eliminate call-backs, and fix faults with total confidence.

Mr Combi APP gives you the confidence to say “YES” to wiring
Work smarter—download it today!

Take Me With You on EVERY Job
Going to a boiler can be stressful. What's the fault? Might be the wiring?
That's stress you can do without.

No one can remember every fault, every test, or every sequence.

So why not take advantage of my 50 years of breakdown experience?

My two books and 8 Apps are easy to follow and packed with practical "How To" guides that help you diagnose faults quickly and confidently.

I'll help you find the fault faster, avoid costly mistakes, and repair boilers with confidence.

🌐 https://mrcombi.com/�
📘 https://mrcombi.com/shop/�
🍎 Apple Apps: https://mrcombi.com/apps/
🤖 Android Apps:https://mrcombi.com/apps/

🔔 New videos almost every week
Subscribe and never miss the next fault-finding guide!

Baxi E168 May NOT Be the PCB

Baxi E168 often points to a PCB communication fault, but don't rush to replace expensive parts.
Check the history error codes
Loose connections
Wiring faults
Sensors and power supply issues can trigger the same error code.
New PCB version available

The Mr Combi F.22 Error Codes App provides fault codes, causes, flow charts and step-by-step solutions for 17 manufacturers. 🔧

Take me with you on every job.

I'll help you find the fault faster, avoid costly mistakes, and repair boilers with confidence.
🌐 https://mrcombi.com/�
📘 https://mrcombi.com/shop/�
🍎 Apple Apps: https://mrcombi.com/apps/
🤖 Android Apps:https://mrcombi.com/apps/

🔔 New videos almost every week. Subscribe and never miss the next fault-finding guide!

"Mr Combi Apps are made by an engineer for engineers and are opened over 4,000 times every month by engineers and installers."

Baxi E125 Fault Code – The Hidden Sludge Problem Costing You £££!

Baxi E125 usually means poor water circulation caused by sludge, a blocked magnetic filter, air in the system or a faulty pump. Before replacing expensive parts, diagnose the real cause.

The Mr Combi F.22 Error Codes App provides hundreds of fault codes, flow charts and step-by-step fixes for 17 boiler manufacturers.

Take me with you on every job.

I'll help you find the fault faster, avoid costly mistakes, and repair boilers with confidence.
🌐 https://mrcombi.com/�📘 https://mrcombi.com/shop/�🍎 Apple Apps: https://mrcombi.com/apps/
🤖 Android Apps:https://mrcombi.com/apps/

🔔 New videos almost every week. Subscribe and never miss the next fault-finding guide!

"Mr Combi Apps are made by an engineer for engineers and are opened over 4,000 times every month by engineers and installers."