Eberspacher pump not clicking

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saviogimmi
Posts: 39
Joined: 18 Sep 2008, 10:58
80-90 Mem No: 13584
Location: north london

Eberspacher pump not clicking

Post by saviogimmi »

Hi all out this prob on the camper board but thought I’d try my luck here! D2L eber, will not start up. I have changed thermostat controller, Ecu and pump! When I turn it on I get an initial click on the pump then it does nothing. Taking a voltage measurement it is constant 12v no pulse like it is meant to. The pump gets hot as it’s constant powered. I can see the at the wiring is green and green/white. One runs to the controller the other to the ecu. So I’m assuming the ecu controls the voltage on off sequence. I have continuity on all wiring. What am I missing been on this 2 days now! Removed the entire heater and wiring now testing on bench! I can get it running if I gravity feed fuel directly,I ran it like this for a good 10 minutes. So I know it works! Any help on what’s going on would be appreciated!
vw t25 westfalia Hi Top 1.9 Diesel AEf Engine.

davidoft1
Posts: 1103
Joined: 27 May 2009, 18:56
80-90 Mem No: 16628
Location: hayling island

Re: Eberspacher pump not clicking

Post by davidoft1 »

Doesn’t the green white run direct from the heater ?

saviogimmi
Posts: 39
Joined: 18 Sep 2008, 10:58
80-90 Mem No: 13584
Location: north london

Re: Eberspacher pump not clicking

Post by saviogimmi »

It just runs through it, straight in the duct and out the side not actually connect in there at all
vw t25 westfalia Hi Top 1.9 Diesel AEf Engine.

saviogimmi
Posts: 39
Joined: 18 Sep 2008, 10:58
80-90 Mem No: 13584
Location: north london

Re: Eberspacher pump not clicking

Post by saviogimmi »

Am I right in thinking the pump signal won’t happen until the startup checks are completed? Maybe it’s not getting through them so it stops before pump comes on?
vw t25 westfalia Hi Top 1.9 Diesel AEf Engine.

saviogimmi
Posts: 39
Joined: 18 Sep 2008, 10:58
80-90 Mem No: 13584
Location: north london

Re: Eberspacher pump not clicking

Post by saviogimmi »

Nope scrub above! Got it past that as fan speed rises and normally the pump would start ticking, but it’s still not!
vw t25 westfalia Hi Top 1.9 Diesel AEf Engine.

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