Eberspacher problem, guess who I'm looking for?

[mucho-mogo]

Where would one source a replacement motor? Thank you.

[Oldiebut goodie]

Haven't a clue!

[mucho-mogo]

OK, here we go again!

Was working fine for a while, the other evening I turned it on and all was well, after a while the fan started to slow down though and the red light came on-on the control unit.

Now I have nothing. Switch the power on for just fan and nothing, switch the heat on and after approx. five seconds I get a click followed by a sort of light squeak for several seconds then it clicks off again.

I have since replaced some more wiring, I get between 12.81 and 13v at the control unit, but this drops down to 11.51v when the control unit clicks. Where am I going now?

I am measuring the voltage from the two lives that go in to one connector on the control unit.

Thanks again.

[Oldiebut goodie]

The voltage drop indicates that the glow plug is taking power.
Are you getting any clicks from the pump at that point? If not check the pump wiring.

[mucho-mogo]

I have three lives to the control unit, I'm thinking it may be an idea to run a whole new live and earth to the unit, and may even move my battery under the rock and roll right next to it. Which live is the main one?

[mucho-mogo]

One minute, will go lay under the van lol.

[mucho-mogo]

OK, the squeaking is coming from the eber itself, no clicking from pump either

[Oldiebut goodie]

You should only have 2 lives, one thick, one thin, going to the same terminal on the ecu. Are you meaning that there are some coming from it in a different colour to the main red ones?

You haven't dropped something into the heating air intake and jammed the fan? The squeaking may be that or a bearing is seizing.
Are you using the manual for troubleshooting?

[mucho-mogo]

There are several points that have at least 12.8v to it, one has two wires leading in to one and the others are single wires.

I'll take a picture and post it tomorrow circling what has live.

[Oldiebut goodie]

Surely the others are coming from the ecu, not going to it.

[mucho-mogo]

I tested all connections with control unit unplugged, or is that not the ecu?

[Oldiebut goodie]

What do you mean by 'control unit' then?

[mucho-mogo]

This.

[Oldiebut goodie]

That is the ecu.
I am getting confused now - how have you tested the connections when they are disconnected from the ecu?
Only connection no.8 should have positive to it any where else is wrong unless you are measuring a positive from the ecu.
Are you following the wiring diagram in the manual?

[mucho-mogo]

Testing the connections without the ecu plugged in with my multimeter in the end of the spades there is live to 1, 8 and I think 10 also but will double check tomorrow.