Vaillant F.75 Fault - But why?! Famous Vaillant Fault Codes

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One of the famous Vaillant Fault Codes! I attended this job for the usual suspected pressure sensor when the client was faced with an F.75 fault on their Vaillant boiler. But not all was as it seemed and the job needed some more attention!
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#boiler #worcester #centralheating #heating #leak #fan #damage #education #multimeter #wiring #repair #repaircosts #plumbing #gassafe #gas

Опубликовано:

16 апр 2024

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Комментарии : 31

@homeflameheating Месяц назад

Great video and repair - rare fault for F75!

@RJHeating Месяц назад

Thanks for watching! Definitely - you’d usually bet your house on it being the sensor 😂

@Heatking Месяц назад

Really enjoyed this one Richie ❤!

@RJHeating Месяц назад

Cheers brother!

@AA-kx1md Месяц назад

I usually carry a carrier bag and slide the whole thing over the control panel to protect from drips and spills. Then remove it after use.

@RJHeating Месяц назад

Good idea actually! There’s actually a brand of boiler who gel coats their PCBs to stop these issues!

@user-li8gr8ur8l Месяц назад

That was a interesting one considering more often then not it is the pressure sensor

@RJHeating Месяц назад

Definitely! I even turned up with a sensor - in my whole career I’d say it’s not been the sensor maybe 5 times 😂

@davebayliss3142 Месяц назад

Always put a couple of nappies under the pump , top tip

@RJHeating Месяц назад

That’s actually a great idea! Thanks for watching!

@julianhawker7672 Месяц назад

Do you not put them in air purge mode? I use a bungee cord as a 3rd hand to hold the controls pannel/PCB up out of the drip zone, works a treat. 👍

@RJHeating Месяц назад

Only air purge if it needs it, this one didn’t. Good tip on the bungee cord, pretty sure these used to have a string on older models like the Worcester - maybe I’m making it up 😂

@homeflameheating Месяц назад

They did!

@ScottyDog345 Месяц назад

How many ohms on that pump

@jkplumbs Месяц назад

Silicone grease rather than washing up liquid is best

@RJHeating Месяц назад

Personally, I find a small drop of washing up liquid is the best lubricant out there - don’t get me wrong, I’m a fan of silicone grease but for the AAVs and the LWPS - it works better for me. Thank you for watching!

@fatzz5800 Месяц назад

Live to Neutral is meant to be 240v right? So why is the pump faulty then I don't understand

@RJHeating Месяц назад

If the pump is getting 240v but not spinning then that proves the pump is faulty as it’s receiving power but not functioning correctly. If it didn’t have 240v at the pump you would be looking at a potential PCB fault

@fatzz5800 Месяц назад

@@RJHeating Thanks so much, I appreciate it. Subscribed also 👍

@RJHeating Месяц назад

@@fatzz5800 thank you!That’s very kind of you! There’s more diagnosis videos coming and hopefully some wiring ones!

@davebayliss3142 Месяц назад

You can hear the pumps getting power 🤷‍♂️

@RJHeating Месяц назад

It’s got power but siezed unfortunately

@kevinschoales844 Месяц назад

Are you predominately attending Vaillants

@RJHeating Месяц назад

I’m based in south west London/Surrey areas and I’d say the main mixture is Vaillant, Worcester & Ideal but can come across pretty much anything!

@marshall255 Месяц назад

Electrical Safe Isolation 😂 Na no need.

@RJHeating Месяц назад

Safe isolation carried out but not on video, I’m sure people don’t want to watch that on every vid but thank you for your concern.

@ScottyDog345 Месяц назад

Youre process of elimination is superd .....Lol

@RJHeating Месяц назад

Pump diagnosed, pump replaced, boiler now working…sounds like solid diagnosis from where I’m standing. But thank you for your input anyway…

@homeflameheating Месяц назад

*Your - also yes, it is. I’d love to see your own video of diagnosing boiler faults Stephen…oh wait you don’t have any?

@ScottyDog345 Месяц назад

Cowboy

@she_plumbs Месяц назад

🙄 pump is seized...can hear it...doesn't matter how many ohms it has.... maybe he just has enough experience to recognise this...but don't worry you'll get there one day 👌