Worcester over heat on DHW.

[Jerry]

This is why i read this forum.

Well done lads

Very informative

J

 

[billski]

Whilst I've had plenty of scaled plates causing poor hot water performance I've never had scale on the dhw side causing boiler overheating, as the system side would be clear and modulate down based on flow and return thermistors.

Just my experience though.

I have had them before when the plate to plate is really scaled up and it makes all sorts of kettling noises with the boiler shutting down. It's not like that though with this one. Still not sure what to do next.

 

[Riley]

Worcester fixed price repair?

 

[billski]

Worcester fixed price repair?

Think that's now £300 plus. Don't want to admit defeat!

 

[Millsy 82]

Whilst I've had plenty of scaled plates causing poor hot water performance I've never had scale on the dhw side causing boiler overheating, as the system side would be clear and modulate down based on flow and return thermistors.

Just my experience though.

On hot water mode the modulation is carried out by the dhw thermistor. The primary thermistors are basically high limit stats and should cut the boiler out before it over heats.

 

[Millsy 82]

Worcester fixed price repair?

Nooooo! Worcester dont give you the small jobs dont give them these jobs.

 

[Millsy 82]

Think that's now £300 plus. Don't want to admit defeat!

Check the resistances on the thermistors (dhw)

 

[billski]

Check the resistances on the thermistors (dhw)

Is there more than one dhw thermistor?

 

[Harvest Fields]

Nooooo! Worcester dont give you the small jobs dont give them these jobs.

It’s not about giving it to Worcester. It’s about the best route for the customer.

 

[Millsy 82]

Sorry I disagree.

The best route for the customer is to diagnose and fix it yourself.

All the manufacturers care about Worcester especially is selling boilers they re not worried about the customers or the installers.

 

[Riley]

Nooooo! Worcester dont give you the small jobs dont give them these jobs.

But if he’s not able to sort it or diagnose???!

 

[Harvest Fields]

And mine??

Just deleted that comment another one coming

 

[Harvest Fields]

@Millsy 82. Disagree all you like. Says a lot. If the cost of me repairing is more expensive then a Worcester fix. The options are new boiler or Worcester fix. For example, there is no way a normal engineer can fit a main heat exchanger in a Junior for less then a Worcester fix priced repair.

 

[Millsy 82]

And mine??

I pretty much said.

Dont give the work to the manufacturers. They dont give it back. Yes if you install 100 Worcestershire a year they will look after you but otherwise they couldn't care less if you get work or not.

Better money going into your pocket than theres.

As for if you cant diagnose it. Speak to tech it's free and if you know what to ask which has been said on this thread you should get to the answer.

 

[Millsy 82]

@Millsy 82. Disagree all you like. Says a lot. If the cost of me repairing is more expensive then a Worcester fix. The options are new boiler or Worcester fix. For example, there is no way a normal engineer can fit a main heat exchanger in a Junior for less then a Worcester fix priced repair.

Will Worcester pay your mortgage? How about baxi? Vaillant? No none of them will YOU need to earn money as well.

 

[Riley]

It’s true but if its been mentioned earlier then why is it not diagnosed

 

[Harvest Fields]

Better money going into your pocket than theres.

If I had that attitude I wouldn’t have any work. I’m busy because I’m all about my customers.

 

[Harvest Fields]

Will Worcester pay your mortgage? How about baxi? Vaillant? No none of them will YOU need to earn money as well.

I do and the same customers keep coming back even after a fixed price repair because I have saved them money.

 

[billski]

I pretty much said.

Dont give the work to the manufacturers. They dont give it back. Yes if you install 100 Worcestershire a year they will look after you but otherwise they couldn't care less if you get work or not.

Better money going into your pocket than theres.

As for if you cant diagnose it. Speak to tech it's free and if you know what to ask which has been said on this thread you should get to the answer.

I agree it can be a good move to call in the manufacturer for a fix priced repair. I have done it my self but only when I know with out a doubt it'll cost more for me to fix it. It could be very embarrassing if the fault doesn't cost a lot to repair!
With regards to calling Worcester or any other manufacturers it can be hit and miss with them. They might have the answers on a screen in front of them but I'd say not many of them have hands on experience. I might be wrong. It's easy for them to say replace this and that but this and that can cost 100's!
Back to my question though..is there more than 1 DHW thermistor??

 

[Millsy 82]

I do and the same customers keep coming back even after a fixed price repair because I have saved them money.

What about when your customers want an install do you say Go with Joe blogs plumbing as he will fit you a boiler for £100 where as I will charge you £500 so you save them money then.