[david washbrook]

For those that are using hot systems with the webasto 90st 9kw water heaters how long have you had them in use before you need to replace the burner,

Mine has developed a problem after only 18 months , pure freedom have offered to send me a service kit but it costs £295.00 if that has to be done every 18 months it works out very expensive to maintain, also am I right in believing these come with a 2 year warrenty

[niceandclean]

How often do you use it? I use mine all year round, at least 5 days a week. Had the burner replaced for the 3rd time in 4 years, first burner went after 8 months. I now just wait until you have no start up, you know when they are about to go as they smoke heavily on start up.

[niceandclean]

Whats in the service kit?

[Dani J]

For those that are using hot systems with the webasto 90st 9kw water heaters how long have you had them in use before you need to replace the burner,

Mine has developed a problem after only 18 months , pure freedom have offered to send me a service kit but it costs £295.00 if that has to be done every 18 months it works out very expensive to maintain, also am I right in believing these come with a 2 year warrenty

They should last at least 2-3 years before they need a service, they are a work horse, you need to go back to pure freedom and tell them that there has been a bad batch for 2010-2011 some of the burners were faulty and a webasto Agent should change or service it for FREE.
You shouldn’t have to pay for any service after such a short time. One of my vans has a webasto which was fitted 9 years ago, it has never been serviced and still going strong.

[niceandclean]

For those that are using hot systems with the webasto 90st 9kw water heaters how long have you had them in use before you need to replace the burner,

Mine has developed a problem after only 18 months , pure freedom have offered to send me a service kit but it costs £295.00 if that has to be done every 18 months it works out very expensive to maintain, also am I right in believing these come with a 2 year warrenty

They should last at least 2-3 years before they need a service, they are a work horse, you need to go back to pure freedom and tell them that there has been a bad batch for 2010-2011 some of the burners were faulty and a webasto Agent should change or service it for FREE.
You shouldn’t have to pay for any service after such a short time. One of my vans has a webasto which was fitted 9 years ago, it has never been serviced and still going strong.

You have been very lucky then. My old 5kw i had that for 4 years and i had 2 burners in it. It is a common thing that the burners do not last.

[Dani J]

For those that are using hot systems with the webasto 90st 9kw water heaters how long have you had them in use before you need to replace the burner,

Mine has developed a problem after only 18 months , pure freedom have offered to send me a service kit but it costs £295.00 if that has to be done every 18 months it works out very expensive to maintain, also am I right in believing these come with a 2 year warrenty

They should last at least 2-3 years before they need a service, they are a work horse, you need to go back to pure freedom and tell them that there has been a bad batch for 2010-2011 some of the burners were faulty and a webasto Agent should change or service it for FREE.
You shouldn’t have to pay for any service after such a short time. One of my vans has a webasto which was fitted 9 years ago, it has never been serviced and still going strong.

You have been very lucky then. My old 5kw i had that for 4 years and i had 2 burners in it. It is a common thing that the burners do not last.

Well I had one fitted about year and half ago on my other van , this was bought from pure freedom, and from start  it wasn’t working properly .
After few calls back and forth to pure freedom they couldn’t tell me what was wrong, so I took the system to a boat shop in my city where they service webasto for boats.
Still he couldn’t tell me what exactly was wrong with it, but he was kind enough to send me to another town, to see a special webasto agent.
He done some checks on it and he told me that the burner is faulty and that they have had a lot of bad batch between 2010-2011 and he has had to change them all for FREE.
He also said that they don’t usually go wrong and I believe him as my other van has had one for 9 years and still good.
So far I haven’t had any problem since he changed the burner and that was nearly 2 years ago. 

[KS Cleaning]

I thought I had a problem with my burner,the flashing code pinpointed flame failure.I took it to my nearest webasto agent,turned out I was letting the diesel tank run too low

[niceandclean]

For those that are using hot systems with the webasto 90st 9kw water heaters how long have you had them in use before you need to replace the burner,

Mine has developed a problem after only 18 months , pure freedom have offered to send me a service kit but it costs £295.00 if that has to be done every 18 months it works out very expensive to maintain, also am I right in believing these come with a 2 year warrenty

They should last at least 2-3 years before they need a service, they are a work horse, you need to go back to pure freedom and tell them that there has been a bad batch for 2010-2011 some of the burners were faulty and a webasto Agent should change or service it for FREE.
You shouldn’t have to pay for any service after such a short time. One of my vans has a webasto which was fitted 9 years ago, it has never been serviced and still going strong.

You have been very lucky then. My old 5kw i had that for 4 years and i had 2 burners in it. It is a common thing that the burners do not last.

Well I had one fitted about year and half ago on my other van , this was bought from pure freedom, and from start  it wasn’t working properly .
After few calls back and forth to pure freedom they couldn’t tell me what was wrong, so I took the system to a boat shop in my city where they service webasto for boats.
Still he couldn’t tell me what exactly was wrong with it, but he was kind enough to send me to another town, to see a special webasto agent.
He done some checks on it and he told me that the burner is faulty and that they have had a lot of bad batch between 2010-2011 and he has had to change them all for FREE.
He also said that they don’t usually go wrong and I believe him as my other van has had one for 9 years and still good.
So far I haven’t had any problem since he changed the burner and that was nearly 2 years ago. 

No webasto's are pretty bomb proof, but if it is being used day in day out, the main part you will have to change on a regular basis is the burner, all agents and dealers will tell you this. A lot of the MOD vehicles will not see a burner last a year.

[david washbrook]

My diagnostic light is not flashing it's just on

[KS Cleaning]

My diagnostic light is not flashing it's just on

If you have a fault your diagnostic light should flash a code

[david washbrook]

That's what pf said
So if its the burner that's faulty should the light flash

The problem is it starts up you can hear the fuel pump clicking, the burner fires up, but after a couple of mins it's shuts its self down and won't turn on again unless you wait a few mins.

Pf said its either the burner has a hole in it, the thermo coupler has gone or the glow plug has gone

Surely these should be covered under warranty which I have found out is 2 years is this correct

[niceandclean]

If its the burner, as it fires up it sounds like its choking, it will then smoke really badly.

[niceandclean]

Also, regarding the warranty, are PF a verified webasto dealer?

[KS Cleaning]

That's what pf said
So if its the burner that's faulty should the light flash

The problem is it starts up you can hear the fuel pump clicking, the burner fires up, but after a couple of mins it's shuts its self down and won't turn on again unless you wait a few mins.

Pf said its either the burner has a hole in it, the thermo coupler has gone or the glow plug has gone

Surely these should be covered under warranty which I have found out is 2 years is this correct

You should have a warranty certificate from PF,only problem is the certificate doesn't actually tell you if it is a 2 year warranty.I would phone PF if I were you and ask if it is a 2 year warranty.If it is under warranty(and it should be) contact your nearest webasto service agent,they will hook it up to a computer which will pinpoint any problem,it can even tell you how many hours your heater has operated since installed.

[KS Cleaning]

Also, regarding the warranty, are PF a verified webasto dealer?

They are an authorised installer but I don't think they are a service agent.I went to a service agent near me,they know their stuff(or their computer does anyway!)

[niceandclean]

Also, regarding the warranty, are PF a verified webasto dealer?

They are an authorised installer but I don't think they are a service agent.I went to a service agent near me,they know their stuff(or their computer does anyway!)

That should be fine then. But i think you will find the burners and glow pins only have a year on them as they are consumables.

[KS Cleaning]

Also, regarding the warranty, are PF a verified webasto dealer?

They are an authorised installer but I don't think they are a service agent.I went to a service agent near me,they know their stuff(or their computer does anyway!)

That should be fine then. But i think you will find the burners and glow pins only have a year on them as they are consumables.

You could be right there,the service agent would prob tell David what is and isn't covered.I certainly wouldn't be buying a service kit tho.

[Spruce]

If you look on the yacht/boat forums alot of boat owners complain about these heaters. It would appear that they have burner problems which they put down to the poor quality of fuel supplied by the Marinas. The wrong fuel causes coking and fouling problems of the burners.

Using standard road diesel, the webasto heaters are bullet proof.

Another issue that is common with boat owners that wfp owners will have is that of cycling. A webasto heater needs to be running flat out to keep the internals as clean as possible. Boat owners (according to forum banter) have noticed that the use of calorifiers to store their hot water use are the source of Webasto problems. A marine calorifier works in the same way a hot water tank does in our houses.  But these calorifiers are very inefficient in removing the heat from the hot water the Wabesto is producing and transferring it into the hot water storage tank. When the Webasto produces hot water faster than it is being absorbed by the calorifier then it kicks into a reduced heating cycle and may even switch off only to have to restart a few moments later. So a Webasto that is used to heat the water and provide for a hot water central heating system do not have the same problems.
 

I believe that the diesel WFP heaters suffer from this same problem. They are supplied with a heater, a heat exchanger and then a small header tank. A Webasto is designed to heat the water in circuit to about 85 degrees C. As we wouldn't need it anywhere near as hot as this, we control the hot water output after our heat exchanger using a thermostatic mixing valve.

When a Webasto starts up it draws about 14 amps in short bursts before settling down to a steady 2.5amps and then to about 2 amps on a reduced heating cycle, so that is why they are power hungry, and if in the cycle mode will kill any battery.

I have all the components to assemble my own diesel heater hot water system, but haven't as yet as I still am not convienced that I have these recycling problems overcome. I thought I'd cracked it when we were on holiday in Scotland in March this year. The cottage we rented had oil heating and they used the 210 litre header tank as a heat source. So the oil heater heated the whole 210 litres of water, hot in the bottom and cold out of the top, and the internal heat exchanger then 'zapped' the heat from this heat source for our hot water requirements.

I contacted each of the calorifier manufacturers and none of them could confirm that a 55 litre calorifier would work as a heat source. While the Webasto will be working on full speed to heat 55 litres + of water, 2 lpm of water to the brush head would pass though their small coil of copper pipe (heat exchanger) too quickly to be heated by very much.  One of them suggested I buy one and tell them if it would work.

What I do like about the calorifier idea is that they are well insulated so heat produced by the Webasto won't be wasted as much.

However, I still believe that the gas boiler idea is a better system for wfp application as you are heating the water you require.

If you are interested in servicing your own boiler then google this.

Servicing a Webasto Thermo Top C Diesel Boiler
By Chris Wyles.

[Dani J]

If you look on the yacht/boat forums alot of boat owners complain about these heaters. It would appear that they have burner problems which they put down to the poor quality of fuel supplied by the Marinas. The wrong fuel causes coking and fouling problems of the burners.

Using standard road diesel, the webasto heaters are bullet proof.

Another issue that is common with boat owners that wfp owners will have is that of cycling. A webasto heater needs to be running flat out to keep the internals as clean as possible. Boat owners (according to forum banter) have noticed that the use of calorifiers to store their hot water use are the source of Webasto problems. A marine calorifier works in the same way a hot water tank does in our houses.  But these calorifiers are very inefficient in removing the heat from the hot water the Wabesto is producing and transferring it into the hot water storage tank. When the Webasto produces hot water faster than it is being absorbed by the calorifier then it kicks into a reduced heating cycle and may even switch off only to have to restart a few moments later. So a Webastoo that is used to heat the water and provide for a hot water central heating system do not have the same problems.
 

I believe that the diesel WFP heaters suffer from this same problem. They are supplied with a heater, a heat exchanger and then a small header tank. A Webasto is designed to heat the water in circuit to about 85 degrees C. As we wouldn't need it anywhere near as hot as this, we control the hot water output after our heat exchanger using a thermostatic mixing valve.

When a Webasto starts up it draws about 14 amps in short bursts before settling down to a steady 2.5amps and then to about 2 amps on a reduced heating cycle, so that is why they are power hungry, and if in the cycle mode will kill any battery.

I have all the components to assemble my own diesel heater hot water system, but haven't as yet as I still am not convienced that I have these recycling problems overcome. I thought I'd cracked it when we were on holiday in Scotland in March this year. The cottage we rented had oil heating and they used the 210 litre header tank as a heat source. So the oil heater heated the whole 210 litres of water, hot in the bottom and cold out of the top, and the internal heat exchanger then 'zapped' the heat from this heat source for our hot water requirements.

I contacted each of the calorifier manufacturers and none of them could confirm that a 55 litre calorifier would work as a heat source. While the Webasto will be working on full speed to heat 55 litres + of water, 2 lpm of water to the brush head would pass though their small coil of copper pipe (heat exchanger) too quickly to be heated by very much.  One of them suggested I buy one and tell them if it would work.

What I do like about the calorifier idea is that they are well insulated so heat produced by the Webasto won't be wasted as much.

However, I still believe that the gas boiler idea is a better system for wfp application as you are heating the water you require.

If you are interested in servicing your own boiler then google this.

Servicing a Webasto Thermo Top C Diesel Boiler
By Chris Wyles.

Well done Spruce, good explanation, but the servicing for webasto by Chris Wyles, is the type C the smaller webasto, mine is the larger one, i don't know if its the same.

[Spruce]

If you look on the yacht/boat forums alot of boat owners complain about these heaters. It would appear that they have burner problems which they put down to the poor quality of fuel supplied by the Marinas. The wrong fuel causes coking and fouling problems of the burners.

Using standard road diesel, the webasto heaters are bullet proof.

Another issue that is common with boat owners that wfp owners will have is that of cycling. A webasto heater needs to be running flat out to keep the internals as clean as possible. Boat owners (according to forum banter) have noticed that the use of calorifiers to store their hot water use are the source of Webasto problems. A marine calorifier works in the same way a hot water tank does in our houses.  But these calorifiers are very inefficient in removing the heat from the hot water the Wabesto is producing and transferring it into the hot water storage tank. When the Webasto produces hot water faster than it is being absorbed by the calorifier then it kicks into a reduced heating cycle and may even switch off only to have to restart a few moments later. So a Webastoo that is used to heat the water and provide for a hot water central heating system do not have the same problems.
 

I believe that the diesel WFP heaters suffer from this same problem. They are supplied with a heater, a heat exchanger and then a small header tank. A Webasto is designed to heat the water in circuit to about 85 degrees C. As we wouldn't need it anywhere near as hot as this, we control the hot water output after our heat exchanger using a thermostatic mixing valve.

When a Webasto starts up it draws about 14 amps in short bursts before settling down to a steady 2.5amps and then to about 2 amps on a reduced heating cycle, so that is why they are power hungry, and if in the cycle mode will kill any battery.

I have all the components to assemble my own diesel heater hot water system, but haven't as yet as I still am not convienced that I have these recycling problems overcome. I thought I'd cracked it when we were on holiday in Scotland in March this year. The cottage we rented had oil heating and they used the 210 litre header tank as a heat source. So the oil heater heated the whole 210 litres of water, hot in the bottom and cold out of the top, and the internal heat exchanger then 'zapped' the heat from this heat source for our hot water requirements.

I contacted each of the calorifier manufacturers and none of them could confirm that a 55 litre calorifier would work as a heat source. While the Webasto will be working on full speed to heat 55 litres + of water, 2 lpm of water to the brush head would pass though their small coil of copper pipe (heat exchanger) too quickly to be heated by very much.  One of them suggested I buy one and tell them if it would work.

What I do like about the calorifier idea is that they are well insulated so heat produced by the Webasto won't be wasted as much.

However, I still believe that the gas boiler idea is a better system for wfp application as you are heating the water you require.

If you are interested in servicing your own boiler then google this.

Servicing a Webasto Thermo Top C Diesel Boiler
By Chris Wyles.

Well done Spruce, good explanation, but the servicing for webasto by Chris Wyles, is the type C the smaller webasto, mine is the larger one, i don't know if its the same.

Oops! The picture I have of a PF single operator diesel heater shows the heater as a Webasto Thermo Top C.

It could be that the two man system could have used the 'bigger' heater?