The Norfolk BroadsThe Norfolk Broads
Username Password
Norfolk Broads Weather

Mon, 11 Apr 2016 7:20 am BST- Light Rain
5 Day Forecast

Wind 2.0 mph @ 40°
48.0°F/8.89°C Humidity 93% Pressure 29.65 (S)

Welcome to The Norfolk Broads Forum
This is THE Worlds Largest Forum devoted to the Norfolk Broads, here you can discuss issues about the Norfolk Broads. Or just somewhere to chat with others interested in the Norfolk Broads area.

Please Help Support The Norfolk Broads Forum
OR

The Norfolk Broads Forum / Broads Boat Owners Q & A / Eberspacher Heater problem
login
join
Graphics Off
Search
Forum Members - Book your Hoseasons holiday today, Just call 0345 498 6296

This is a moderated forum Reply to this DiscussionReply to Discussion | Start new discussionNew Discussion << previous || next >> 
Posted By Discussion Topic: Eberspacher Heater problem

Similar Threads That Might Help :
Wanted - Webasto/Eberspacher diesel heater| Wanted - Webasto/Eberspacher diesel heater| eberspacher D2 night heater| eberspacher D2 night heater|

book mark this topic Printer-friendly Version  send this discussion to a friend  new posts last

Torty
Jun-11-2009 @ 2:13 PM                           Permalink
reply
edit
profile
send p.m.
Lives to Post
Posts: 1331
Joined: Jun 2005
Torty
          

Add To Ignore List
Our cruiser has an Eberspacher D5W diesel heater. This heats water and pumps it round the boat to provide hot water via a calorifier and space heating via radiators. We have had very little trouble with it over the last 5 years or so.

This winter I made the mistake of getting it serviced. When the boat was first put back into commission the heater did not work at all. The fault was traced to a bad connection / broken pin in a connector on top of the unit.

Since then it has refused to start unless the engine is running, and then not every time.

What the unit does (without the engine running) is enter self-test mode for about 5 seconds and then switch off. Changing the glow plug made no difference. Installing a direct power supply from the domestic batteries to the unit made no difference. Connecting power direct from the engine starter battery did provide a "battery only" start up.

So I was advised that there might be a slight weakness in the services batteries which resulted in a voltage drop or ampere limit which caused the controller to decide that it was unsafe to start up.

I bought two new batteries and installed them. Old batteries were providing 12.56 volts. New batteries fully charged were providing 12.96 volts. The unit would still not start up under batteries alone.

I am now advised that it might be a controller fault which means it is looking for too high a voltage. New controllers are very expensive and I would like to be able to start up the heater without being antisocial and having to run the engine.

Does anyone have any insights to offer? I am wondering whether the repair to the faulty connection / pin has created a situation where a larger voltage is needed than was the case previously.

TIA

Phil

TerryTibbs
Jun-11-2009 @ 5:35 PM                           Permalink
reply
edit
profile
send p.m.
Harnser Trainer
Posts: 7094
Joined: Jul 2007
TerryTibbs
          

Add To Ignore List
How old is the unit? e had one that was about 15 years old and we had similar problems,the power requirement was right on the limit of the batteries capability and even if it did start up it would close off after a few mins, I spent a fortune trying to cure it at least £500 and it was money wasted. I had a new unit fitted in 2007 and it is perfect, the new units need a much smaller current to work and are a much lower drain on the batteries. Cost about £1400 in total but well worth the cost as it is a far better unit than the old one even when that was working properly.

Dave

If it is to be it is up to me!

PeteSanders
Jun-11-2009 @ 6:16 PM                           Permalink
reply
edit
profile
send p.m.
Lives to Post
Posts: 1298
Joined: Jul 2005
PeteSanders
          

Add To Ignore List
Phil,

As all was working well previously, it sounds to me as though you may
have a high resistance joint/connection somewhere in the cable run
between the batteries and the heater.  The obvious culprit is likely to
be the repaired pin after the break.  Can you feel slight heat anywhere
along the cabling and more specifically the various joints, ie
connectors, fuses etc. when the heater is trying to start.  This would be
a good indication of resistance due to the high current initially drawn.  
You'll probably need to check this with the engine running to avoid the
low voltage shutdown you seem to be experiencing at present.

It looks as though you have a meter from the accuracy of your voltage
readings, so another test would be to check also the actual voltage at
the heater as it's attempting start up.  If this is less than the voltage at
the battery terminals at the same time then it would be proof of high
resistance somewhere.

Pete


Torty
Jun-15-2009 @ 4:48 PM                           Permalink
reply
edit
profile
send p.m.
Lives to Post
Posts: 1331
Joined: Jun 2005
Torty
          

Add To Ignore List
Thanks for the feedback chaps. I have arranged for the engineers to come down with diagnostic kit in a week's time to run further checks. I am inclined to agree with Pete about the repaired connection - on the basis of thinking that, if it worked before, what has changed to stop it working now.

Phil

TerryTibbs
Jun-16-2009 @ 1:48 PM                           Permalink
reply
edit
profile
send p.m.
Harnser Trainer
Posts: 7094
Joined: Jul 2007
TerryTibbs
          

Add To Ignore List
Phil, mine had worked fine for the 2 years I had it, I got Panks out to it on 3 occasions and after having new sensors new pump and various other bits and bobs done it was never right. I was told by an Eberspacher eng that the old units worked "right on the limit" and once they got old they were a nightmare. All I'm saying is beware, you could be chucking good money after bad as I did.


Dave

If it is to be it is up to me!


Home Photo Gallery Days Afloat Contact Us
Chat Room Downloads Norfolk Broads @ Amazon Make My Logo
Shops & Businesses Members Gear Norfolk Broads @ EBay Holiday Calendar
Pub Guide Tide Tables SOS List Popular Threads
2017 Calendar Contest Make A Donation Links Hireboat Info
Norfolk Broads @ CafePress FAQ Broads Quiz Forum Events
Advertise With Us Forum Shop Boating Bits Stickys and FAQs Boating Bits Hirecraft List

 

 

 



Copyright © 2005 Y2KInternet, All Rights Reserved.