non start eberspacher

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Dave70

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:confused:can anyone help? recently fitted heater have managed to fire up twice,but now after several attempts no go! have checked fuel at heater all ok,have fitted new 12 v 645ah battery as i understand on start up they draw about 22 amps,[heater is d3l 3200] when starting at stat blower comes on,after appx.5mins.tone changes [speeds up] runs for another 5mins.appx.then shuts off.area around glow plug gets warm,also have tried with stat at full no joy! would appreciate any advice thanks
 
Is the fuel pump starting up? it should start to run after a few minutes ( though on reflection the D3L may start pumping straight away) then pump for 2 mins, if the heater doesn't start it will stop pumping then have another go. Disconect the power completly before attempting again.
Have you got the manual? try www.espar.com
Good luck
 
Sounds like possibly no fuel getting through. The pumps are a pulse type so easy to check, just connect pos to one terminal and strike the other with a wire from neg. Every strike gives one pulse. Disconnect pipe from heater and pulse the pump a couple of times to see if fuel gets as far as the heater.

If there is an air leak in the fuel line fuel will drain back and it takes a fair few pulses to prime it up again. Probably longer than the Eber's start up time which is why it will shut down. Too many start-up failures puts a fault in the thing's memory and it might not want to start up.

The other thing that is critical is the fuel pick-up pipe diameter, Eber recommend 1/8" pipe so if too big it cannot suck up fuel and the dip pipe drains off.

If none of the above shows a fault - I dunno - sorry!
 
davidlawrence56@hotmail.c said:
:confused:can anyone help? recently fitted heater have managed to fire up twice,but now after several attempts no go! have checked fuel at heater all ok,have fitted new 12 v 645ah battery as i understand on start up they draw about 22 amps,[heater is d3l 3200] when starting at stat blower comes on,after appx.5mins.tone changes [speeds up] runs for another 5mins.appx.then shuts off.area around glow plug gets warm,also have tried with stat at full no joy! would appreciate any advice thanks
Click to expand...
Hi David, Are you using fresh diesel? Old diesel will often fail to ignite with eberspachers. Try running parafin or new clean diesel from a seperate feed tank or bottle & see if it starts up. You can also disconnect the diesel feed pipe from the base of the heater & run the start up sequence with the pipe disconnected: have something there to catch the diesel. It should pulse jets of diesel into your collecting vessel. If there is a good supply of fuel spurting from the feed pipe then reconnect it . If you do not obtain a good supply of fuel then suspect the fuel pump or the feed pipe & filter at the bottom of the pump . If you have a good supply of fuel remove the glow plug & check the wire gauze that surrounds it. The gauze must be clean: If it appears black & clogged clean it thouroughly right down to the bottom of the glow plug housing. refit the glow plug & try start up proceedure again. If the unit fires up (you will feel heat from the exhaust & hear the familiar "roar" as the diesel ignites) but fails to continue running then suspect the flame sensor which is next to glow plug. Also ensure that there is free flow of air to the ventilation ducts: you can check & eliminate this by removing the ventilation pipe on the heat output feed of the eberspacher & trying the start up sequence with the heat ducting disconnected. If the heater runs without the ducting connected then suspect a blockage in the ducting: I assume that all the ventilation outlets on the vessel have not been accidentally closed? Hope this helps.
 
I had similar problems with a Webasto diesel heater: cured by changing the diesel pipe from 1/4 inch to the recommended 1/8 inch.

Once the pipe is changed, you MUST bleed it BEFORE trying to start the heater:

connect the pipe to the pump but not the heater
remove both connections (yes, both) at the pump
connect the pump negative to earth
touch the positive connection with a wire from the battery positive:
each touch pulses the pump; eventually (after MANY pulses), diesel will appear at the end of the pipe
connect the end of the pipe to the heater
remove the pump negative connection you've just made
replace the connections to the pump from the heater.

I had to do this frequently before I changed the pipe size, so made up a changeover switch to switch the pump between heater & manual pulse, plus a press switch to pulse it easily.
 
Cliveshep said:
Sounds like possibly no fuel getting through. The pumps are a pulse type so easy to check, just connect pos to one terminal and strike the other with a wire from neg. Every strike gives one pulse. Disconnect pipe from heater and pulse the pump a couple of times to see if fuel gets as far as the heater.

If there is an air leak in the fuel line fuel will drain back and it takes a fair few pulses to prime it up again. Probably longer than the Eber's start up time which is why it will shut down. Too many start-up failures puts a fault in the thing's memory and it might not want to start up.

The other thing that is critical is the fuel pick-up pipe diameter, Eber recommend 1/8" pipe so if too big it cannot suck up fuel and the dip pipe drains off.

If none of the above shows a fault - I dunno - sorry!
Click to expand...

cheers will try that,[looks like we have same boat mine is OCEAN MOON moored at harlyford]
 
davidlawrence56@hotmail.c said:
:confused:can anyone help? recently fitted heater have managed to fire up twice,but now after several attempts no go! have checked fuel at heater all ok,have fitted new 12 v 645ah battery as i understand on start up they draw about 22 amps,[heater is d3l 3200] when starting at stat blower comes on,after appx.5mins.tone changes [speeds up] runs for another 5mins.appx.then shuts off.area around glow plug gets warm,also have tried with stat at full no joy! would appreciate any advice thanks
Click to expand...

Having done some extensive Eber troubleshooting over the winter, I've a couple of point to make.
If you get part of the start up cycle, with fuel but no ignition, you'll get a diesel mist blown out the exhaust, possibly warm - but not hot...
You can feel if the pump is pulsing by touching the body of it after starting the ignition cycle.
All the advice on fuel bleeding / pipe size is sound. The pumps DO NOT like having air in the line.

Although it's a new installation, another thing worth establishing is that the glow plug is not losing any volts in it's cabling /plugs etc.
Just after switching on, check the voltage across the glowplug AT THE GLOWPLUG. If you have good wiring - and good batteries, it should be around 11.8-12.2V.
If less, then there is a poor connection or unduly light cabling in your system somewhere, and the glow plug simply can't get the oomph to glow properly and ignite the fuel.
I had a problem like that and took a (fused at 25A) 6mm2 supply cable direct to the glow plug -via a 40A relay -operated by the original glow plug wiring -only needs 100mA for the relay. I have no bother with poor starts any more.
The control units are fairly complex, but the actual burners etc are remarkably simple beasts.

Greame
 
Hi David

You don't say if your Eberspacher is new, but if it isn't it sounds very like the fault we had when our blower motor failed. they have a life of approx 5000 hours. Hope you have found your problem by now.
 
fault code

not sure which controller you have but I think if you have one which includes 2 arrow buttons for temperature control, if you press both together when the unit is OFF as well as switching the ON button, you will see a list of fault code numbers.
Cant remember what they are but google them and that might help
 
pagoda said:
Having done some extensive Eber troubleshooting over the winter, I've a couple of point to make.
If you get part of the start up cycle, with fuel but no ignition, you'll get a diesel mist blown out the exhaust, possibly warm - but not hot...
You can feel if the pump is pulsing by touching the body of it after starting the ignition cycle.
All the advice on fuel bleeding / pipe size is sound. The pumps DO NOT like having air in the line.

Although it's a new installation, another thing worth establishing is that the glow plug is not losing any volts in it's cabling /plugs etc.
Just after switching on, check the voltage across the glowplug AT THE GLOWPLUG. If you have good wiring - and good batteries, it should be around 11.8-12.2V.
If less, then there is a poor connection or unduly light cabling in your system somewhere, and the glow plug simply can't get the oomph to glow properly and ignite the fuel.
I had a problem like that and took a (fused at 25A) 6mm2 supply cable direct to the glow plug -via a 40A relay -operated by the original glow plug wiring -only needs 100mA for the relay. I have no bother with poor starts any more.
The control units are fairly complex, but the actual burners etc are remarkably simple beasts.

Greame
Click to expand...

hello thanks for extensive info,not up on test.glow p.can i use basic v/mtr? howdo i test? cheers,dave
 
I had a similar problem, it turned out that the tiny fuel filter on the inlet to the pump was blocked with black gung. Works well now after cleaning it.
 
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