Ebaspacher heater

[ColinM]

We have an ex black prince hire boat. 2012. We are moored near braunston

can anyone recommend an engineer that will visit us to check over our heater Ebaspacher 

thanks

ColinM

[matty40s]

Why would you want to check it over?

Is it faulty?

If so, what fault is it showing, or what does it do or not do on startup?

 

[Hudds Lad]

You could enquire with Dunchurch Pools if the wharf would look at it for you, they got our MV-Hydro working and serviced it, but we do moor there.

Probably easier to pop there or Braunston marina rather than find an engineer willing to travel to you.

[ColinM]

Thanks for the reply

 

we had a note from our marina after the yearly engine service-

 

THERE IS EVIDENCE OF LEAKING WATER FROM THE EBERSPACHER AS
THERE IS COOLANT ON THE SWIM - WHEN WAS THIS LAST SERVICED

 

we have a pull out on/off switch no dashboard or error codes to look at. Unfortunately we are not practical when it comes to our boar. We are learning slowly

 

cheers

 

 

[ColinM]

13 hours ago, Hudds Lad said:

You could enquire with Dunchurch Pools if the wharf would look at it for you, they got our MV-Hydro working and serviced it, but we do moor there.

Probably easier to pop there or Braunston marina rather than find an engineer willing to travel to you.

Cheers, I will investigate both 👍

[Tony Brooks]

6 hours ago, ColinM said:

Thanks for the reply

 

we had a note from our marina after the yearly engine service-

 

THERE IS EVIDENCE OF LEAKING WATER FROM THE EBERSPACHER AS
THERE IS COOLANT ON THE SWIM - WHEN WAS THIS LAST SERVICED

 

we have a pull out on/off switch no dashboard or error codes to look at. Unfortunately we are not practical when it comes to our boar. We are learning slowly

 

cheers

 

 

 

This may be total 'ollacks as I have hated such things with a vengeance after dealing with Webastsos in the early 70s.

 

They are often connected to the plumbing by rubber hoses, so a very close look at those, especially where they clip to the heater, would be a good first step. If there is no leak there, I fear the heat exchanger may have corroded and perforated so prop for a large bill. The Webastos had an internal water pump, so if yours is like that, it could also be costly. 

•  

[Tonka]

9 minutes ago, Tony Brooks said:

 

This may be total 'ollacks as I have hated such things with a vengeance after dealing with Webastsos in the early 70s.

 

They are often connected to the plumbing by rubber hoses, so a very close look at those, especially where they clip to the heater, would be a good first step. If there is no leak there, I fear the heat exchanger may have corroded and perforated so prop for a large bill. The Webastos had an internal water pump, so if yours is like that, it could also be costly. 

•  

 

The Webasto Thermo Top 5kw has an external water pump. But the op has a Eberspacher. Do we know which model so as we can look at a manual

[PineappleGuy]

If the OP is still looking for a competent engineer, we had our boiler (a Webasto but I don't suppose that matters) serviced a couple of months ago by Colin Rowe of CB Boats Braunston.

[Speedwheel]

On 11/02/2026 at 08:22, Tony Brooks said:

 

This may be total 'ollacks as I have hated such things with a vengeance after dealing with Webastsos in the early 70s.

 

They are often connected to the plumbing by rubber hoses, so a very close look at those, especially where they clip to the heater, would be a good first step. If there is no leak there, I fear the heat exchanger may have corroded and perforated so prop for a large bill. The Webastos had an internal water pump, so if yours is like that, it could also be costly. 

•  

 

I had very similar to this. Nothing wrong with the heater,  but where the hose connected to copper, it came loose and leaked everywhere. The repair took less than a minute; the clean up, quite a bit longer. 

[LadyG]

On 11/02/2026 at 08:22, Tony Brooks said:

 

This may be total 'ollacks as I have hated such things with a vengeance after dealing with Webastsos in the early 70s.

 

They are often connected to the plumbing by rubber hoses, so a very close look at those, especially where they clip to the heater, would be a good first step. If there is no leak there, I fear the heat exchanger may have corroded and perforated so prop for a large bill. The Webastos had an internal water pump, so if yours is like that, it could also be costly. 

•  

 

The internal water pump is £300, which is outrageous, but it comes with a Webasto sticker.

A 'refurbed Webasto' is £250 from Ebay, but obviously pretty well untested.

Initially i went for a "clean it up and ignore the squeaky water pump" option, but got a shake of the head, so its a new water pump plus a clean up.

Aparently  its not been looked after properly (mea culpa), it should be run for three hour sessions to burn up the crud, not one hour sessions, sigh.

Mine has been OK for 25 years, but the radiators started feeding it rusty residue, and it started to make alarming explosive noises.

Radiators have now been removed and flushed till clean, (apparently this can't be done in situ), it takes a long time with a running tap...

There is about 20l of pink stuff to be added, so let's hope it keeps going for another 25 years!

I think i might be having a financial melt down next week ......

 

Edited February 13 by LadyG