How to Service Your Fuel Pump and Replace the Fuel Filter
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- Опубліковано 8 січ 2020
- In this video you'll learn how to troubleshoot, remove and replace the fuel pump in an Airtronic D2 heater. The most common reason for replacing a fuel pump is a CODE 48 when you run a diagnostic test. But before you rush to replace the fuel pump, there's a quick test you can do to verify it does, in fact, need replacing. So be sure to watch this video and learn that simple test. It just may save you some money.
The second issue covered in this video is how to replace the fuel filter on the inlet side of the pump.
The two most common reasons for replacing the fuel filter are no-starts and if the heater continuously smokes during operation.
To download the Airtronic D2/D4 Diagnostic and Repair Manual, click here: cutt.ly/7bLxJ02
To learn more about our EasyScan diagnostic and service tool, click here: cutt.ly/1bLRxwR
If you enjoyed this video or found it helpful, we invite you to add a comment below. We'd also love to hear your ideas for other service related videos you'd like to see added to our Service Corner | Tech Topics playlist.
We’d love to assist you in any way we can. Please direct your comment or concern to one of the following options and an Eberspaecher representative will respond to you shortly. For technical support, contact us via email at help[at]eberspaecher.com or phone our support team at 1-800-387-4800 ext. 2299. - Авто та транспорт
Thank you so much for this video and so many others,your videos are so clear and easy to work with .Thank you very much....
Glad you enjoyed the video, Sarah.
Nice video..learned something new today..Thank you very much sir.
Thanks, @mangatsinghdeol2941 . Much appreciated. If you have any other ideas for videos, feel free to let us know. We could always use suggestions.
Please note the electrical connector is NOT always the high side. Sometimes it is on the inlet rather than the outlet side. This is the case for the Hydronic S3 supplied fuel pump, part number 22 4550 05. It may be true for others as well. When doing this maintenance make note of the orientation of the existing fuel pump.
Correct, connector orientation varies for different fuel metering pump styles. Install the fuel pump according to the installation instruction for the specific heater you are installing.
Good info.
Are the mounting angles also for webasto pumps?
Hi and my apologies for the tardy response. To be honest, I'm not sure. But feel free to contact Technical Support at 1-800-387-4800 X2299 and/or help@eberspaecher.com.
Mike, I installed a Webasto Airtop 2000 STC (petrol) yesterday and am having issues getting the fuel pump to operate correctly. When plugged in, the Webasto's blower fan turns on, but the fuel pump does not operate.
I tried your method (starting at time = 0:45 of your video) of grounding one of the pump's terminals and pulsing 12V power to the other terminal. Each time I pulse power, I hear one click within the pump. I believe this tells me that the pump is good, but that I may have an open circuit. How does one find the source of the open circuit? I have triple and quadruple checked each of the electrical connections and they are all secure.
Hello Amiana,
I am currently having the exact same problem as you. Did you find out a solution? any help is appreciated!
I'm terribly sorry (and embarrassed) that your question slipped through the cracks. I do hope you found an answer to your question. Should you have any new questions, the best course of action is always to reach out to our technical support team first. Phone: 1-800-387-4800 ext 2299 or help@eberspaecher.com. Again, my sincere apologies.
Fuel filters are known for causing a heater to not start or smoke when they start to restrict the fuel. If your heater is struggling to start after you replaced the atomizer screen or if it is smoking while it is running I would replace the fuel filter. There are a lot of variables from fuel quantity to depth of fuel standpipe in the tank.
Thank you, @Traveledtwo , for the added pro tip. Much appreciated.
Hello Mike, I have a Great West Vans Legend SE which is a Mercedes Sprinter 3500 cassis class B RV from 2014. it uses an Espar system for hot water, and cabin heat. The hot water and heat stopped working. It was making a whining sound and would shut off, now it doesn't even do that. I think it's the fuel pump and filter, maybe a dirty filter put the pump under too much stress. I have not been able to find anyone to help fix it at all in OH. Can you advise where I might get a pump and filter? Thank you.
I hate to say but it does not sound like a fuel pump because when they do not work there is no sound at all. It kind of sounds like the heater is locked out or has an active fault code. Some controllers have diagnostics in them and if yours does it can also clear codes. If you are locked out from too many no starts (10) you will need to clear the codes to clear the lockout. If you have an active code it will keep your heater from operating and that code can be retrieved through a controller also if it has diagnostics. If you want to manually test the fuel pump, unplug it and ground one terminal of the pump and apply 12 volts to the other to see if it clicks. It is not polarity sensitive and if it clicks it is good. If you have no way to get or clear codes I would not order a pump until you get it to a dealer to get the codes. Ohio has some great dealers and there is a list on the web site, www.eberspaecher-na.com. You can also get any of the technical manuals on the site with making a password. You can also call the tech line at 800-387-4800 and they can direct you. I hope some of this helps,Mike
Hey @CCazmir ... I know it's been a couple years since you asked this question, but just stumbled across it and was wondering if you managed to get your heater working properly? In the future, if you ever have any other issues with your heater, I encourage you to reach out to our Technical Support Team either by phone 1-800-387-4800 X2299 or email help@eberspaecher.com. Safe travels,
Ok where is this thing located please? Before i tear apart the heater again just wondering if it was hiding in the cover somewhere because I didn't look hard enough
It's not part of the heater unit itself, but located along the fuel line between the heater and the fuel tank. Likely attached to the underside of the chassis of your vehicle.
@@danpaul000 I called up espar and they told me same thing. Its so tiny and just dangling there by a rubber bracket
Hey SuperTrucker... just stumbled across your comment and was wondering how your Espar/Eberspaecher heater is working?
@@EberspaecherNorthAmerica Working fine
If I get power to the pump but pump is not clicking.. even after trying 2 new pumps. What elese could I check?
The same happened
Hi Franki. I know you sent this message over a year ago. But I'm just going through and replying to any messages or questions that fell through the cracks. If you ever have technical issues or questions about any Eberspaecher product, and you're not getting the answers you need from your dealer, remember, you cam=n always reach out to Eberspaecher Technical Support
📞 1-800-387-4800 X2299
📧 help@eberspaecher.com
Our team of on-staff technician and engineers will be more than happy to help you out, if they can. But hopefully the need will be few and far between.
So.. I installed my D2L heater with the electrical connector of the fuel pump on the low side, but it's running fine. I mean, wouldn't I run into problems pretty quick if I installed the pump incorrectly?
The new D2L heater features a redesigned pump with the electrical connector on the opposite side of the pump. For these new fuel pumps having the connector on the low side is recommended. I hope that answers your question, Sages 101. But of not, feel free to message us again. Aways happy to help.
@Eberspaecher North America yes I went and double checked, it's installed correctly. Thank you for the reply 😁👍🏻
I got a brand new freightliner. I went to turn on the bugs heater for the first time and it says check fuel pump. It’s got to be something simple that I can’t figure it out.
Apologies for the tardy response, Harry. And I'm sorry about your issue. I would suggest you reach out to our Technical Support Team at 1-800-387-4800 X2299 and/or help@eberspaecher.com. They will be more than happy to assist you and/or answer any questions you have.
Please don't hesitate to reply to this message if you don't hear back from anyone and I'll personally forward your issue to the support team and make sure you receive a speedy reply/answer.
My truck heater start with smoke and after 10 min shut of ??
Hey @nirmalsarai8877 ... I know it's been a couple years since you made this comment, but just stumbled across it and was wondering how your Espar/Eberspaecher heater is working? Hope all is well. Safe travels.
help me out with a few of those parts.??? At least a distributor within 300 miles that isnt Peterbilt
Hey Douglas, I thought I responded to your comment a while back, but I guess not. Whereabouts are you? I'll see what I can do.
How often should the fuel filter be replaced on a B2 hydronic unit (gasoline)?
Fuel filters are known for causing a heater to not start or smoke when they start to restrict the fuel. If your heater is struggling to start after you replaced the atomizer screen or if it is smoking while it is running I would replace the fuel filter. There are a lot of variables from fuel quantity to depth of fuel standpipe in the tank.
Hey @functionalvanconversion4284 , I know it's been a couple years since you asked this question, but just stumbled across it and was wondering if you managed to get your heater working properly? In the future, if you ever have any other issues with your heater, I encourage you to reach out to our Technical Support Team either by phone 1-800-387-4800 X2299 or email help@eberspaecher.com. Safe travels,
I heard it's really good to run a gallon of kerosene through an espar every year before winter hits, that running a gallon of straight kerosene cleans it out really good. is that true?
Kerosene and diesel are the same thing
@@circusboy90210 no they are not, kerosene is thinner than diesel and has less lubricity also burns at a higher temp but can be used in a diesel heater with little or no side effects just don’t run it in a modern (common rail) Diesel engine it will ruin the pump in no time.
Hey @shatteredsquare ... I know it's been three years since you asked this question, but just stumbled across it and was wondering if you ever got an official answer to your question. If not, I strongly encourage you to reach out to our Technical Support Team either by phone 1-800-387-4800 X2299 or email help@eberspaecher.com. Safe travels,
My heater won't start now pump ticks but won't start there is fuel in line but just won't go all the way to the heater now sure why says error code 8 or something
Hi Night Sky Images. I know you sent this message over a year ago. But I'm just going through and replying to any messages or questions that fell through the cracks. If you ever have technical issues or questions about any Eberspaecher product, and you're not getting the answers you need from your dealer, remember, you cam=n always reach out to Eberspaecher Technical Support
📞 1-800-387-4800 X2299
📧 help@eberspaecher.com
Our team of on-staff technician and engineers will be more than happy to help you out, if they can. But hopefully the need will be few and far between.