Eberspacher will not start

[Benktnp]

Hi

I have a D5LC 2002 mod, that has worked for many years, with no problems, suddenly it wouldn't start.I delivered it to our local Vendor for diagnose. They said that it was the overheating sensor that was gone. I Changed it with a new one, without result. Since it was difficult to get parts for it, I bought a used one from a friend of mine, same type and model, that was overhauled. After mounting it start and the diesel pump was ticking but it wouldn't ignite. I thought the diesel had not reached the burner and restarted it five times, then it died. and was totally dead after that. Is there a way to reset it? Can anyone help me?

 

[Montemar]

If the operating voltage is low they won't start.

 

[littledancersadhu]

These units must have a thermo couple, which must be heated up to keep the coil pulled in, to keep the diesel line "open"
I was replacing these all the time, and i have a dodgy one on my gas hob on the boat.

And as Montemar says, check you have over 12v at the unit.

Another thing to check, the piezo, the bit that makes the spark, can you see it making a spark, hear it clicking?

 

[Seastoke]

Don’t they need resetting if you don’t have the right controller , you will have to take it to a dealer.

 

[NBs]

Hi,
It could be an air bubble in the fuel line, did you tighten the joints properly?

I put you a link to a very good site, there is a lot of information and ideas, a little tricky to navigate, but, once you figure out how to navigate the site you will get answers..

"
Start failures after first installing.

Ok, you've followed all installation instructions; checked your battery voltage; and switch it on. 60 seconds later, motor speed increases and fuel pump starts to tick - only to shut down again after a further 90 seconds. If left alone it tries again - often with same result. Panic!

No problem. What you have probably overlooked is that the fuel pump needs to prime itself and the fuel pipes before it can supply the heater. If the flame sensor fails to detect a flame within 90 seconds of pump starting, the ECU automatically aborts the start, then tries again. Now, assuming you are using the correct piping (1.5mm i.d.) each start attempt theoretically supplies sufficient fuel to fill around 2.26 meters of pipe. But don't forget that the inlet pipe from fuel supply to pump, and the pump itself needs to prime first. How much fuel is required here depends on the distance between supply and pump, but the correct 2 mm i.d of this pipe will fill at the reduced rate of 1.27 meters per start. So an overlength pipe can demand several start attempts before the fuel even reaches the pump.

If you are using clear plastic piping on the outlet side, the fuel flow can be observed by tiny evenly spaced bubbles, but even when it shows the pipe is full more fuel is needed to reach the glowpin chamber and main burner. And if this point is reached a few seconds short of the 90 second mark the heater can fire up, but cut off again before the flame sensor can register. Remember the heater will automatically make two start attempts, but you will then need to switch off and re-start it again. Also, if you are using pipes with larger inner diameter size, more start attempts will be required. Once primed, your heater will fire up on first attempt each time unless you have a fuel leak somewhere, or disconnect a pipe for any reason."

Link sites:
D5

 

[harvey38]

Hi

I have a D5LC 2002 mod, that has worked for many years, with no problems, suddenly it wouldn't start.I delivered it to our local Vendor for diagnose. They said that it was the overheating sensor that was gone. I Changed it with a new one, without result. Since it was difficult to get parts for it, I bought a used one from a friend of mine, same type and model, that was overhauled. After mounting it start and the diesel pump was ticking but it wouldn't ignite. I thought the diesel had not reached the burner and restarted it five times, then it died. and was totally dead after that. Is there a way to reset it? Can anyone help me?

If it is the Overheat Sensor, you're fortunate, ours turned out to be a fried ECU. £520 later it's back up and running. Expensive and numerous people will remind me I could have bought a truck load of Chinese copies but I'm happy and it kept us warm through our Winter visits

 

[tico]

Hate to be blunt, but get a chinaspacher. At £100 it’s less costly than a repair to the eber and works first time.