Espar heater won’t run

[JWS]

Diesel heater won’t fire. The controller is getting power, tank is full, exhaust is clear, wiring and fuel line are in good shape. The heater was last used the end of October and ran perfectly, but I’m now reading I should have fired it up at least once a month. Any help for troubleshooting/repair would be great, thank you. It’s an airtronic S2 D2L.

 

[sudsy]

you getting any error codes? What fuel are you using ( diesel or kerosene)?

 

[salmonkiller01]

can you hear the fuel Pump running?

 

[JWS]

you getting any error codes? What fuel are you using ( diesel or kerosene)?

Diesel, and no error codes. I should add that I did a reset, which did nothing

 

[JWS]

can you hear the fuel Pump running?

I’m gonna say no, but being such a small pump, maybe I wouldn’t?

 

[sudsy]

If you can put your hand on it when you try to start it up it should make a clicking noise and if your able to touch it you will feel if it'd pumping. It could be a stuck fuel pump...weird that your not getting any codes - what controller are you using?

 

[salmonkiller01]

If the pump is not working take it off and tap the outlet on a block of wood. Watched this on a you tube video to fix mine. They get stuck and it frees them up

 

[JWS]

If you can put your hand on it when you try to start it up it should make a clicking noise and if your able to touch it you will feel if it'd pumping. It could be a stuck fuel pump...weird that your not getting any codes - what controller are you using?

Eberspacher 7 day programmable ontroller

 

[JWS]

If the pump is not working take it off and tap the outlet on a block of wood. Watched this on a you tube video to fix mine. They get stuck and it frees them up

I’ll try that tomorrow, thanks!

 

[salmonkiller01]

You should hear pump clicking on start up.

 

[ship happens]

Pump just pulses. Every second or 2.

Could have an air bubble that won't prime also. Seen that lots. There is a priming mode that will run the pump statically with the unit off. Take the fuel line off of the unit and make sure there is fuel coming out.

This is why I always put the pumps closest to the source. Pumps will not suck they will only push

 

[JWS]

Pump just pulses. Every second or 2.

Could have an air bubble that won't prime also. Seen that lots. There is a priming mode that will run the pump statically with the unit off. Take the fuel line off of the unit and make sure there is fuel coming out.

This is why I always put the pumps closest to the source. Pumps will not suck they will only push

So out here now, tried salmonkiller01’s idea of knocking loose stuck pump, no go.

I’m not hearing any clicking or pulsing coming from the pump, so thinking pump is shot?

Pump is about 12” of hose away from tank.

 

[ship happens]

Maybe it's the connection. Unplug it and have a look at the pins. Spray some fluid film in there or some dielectric grease and pop it back on.

 

[DuroBoat]

Is diesel better than kerosene for these heaters?

 

[JWS]

Maybe it's the connection. Unplug it and have a look at the pins. Spray some fluid film in there or some dielectric grease and pop it back on.

I’m gonna PM you, if you don’t mond

 

[salmonkiller01]

So out here now, tried salmonkiller01’s idea of knocking loose stuck pump, no go.

I’m not hearing any clicking or pulsing coming from the pump, so thinking pump is shot?

Pump is about 12” of hose away from

Try really smacking it on a board

 

[sudsy]

So out here now, tried salmonkiller01’s idea of knocking loose stuck pump, no go.

I’m not hearing any clicking or pulsing coming from the pump, so thinking pump is shot?

Pump is about 12” of hose away from tank.

I would say that It's your pump then...I had a stuck pump brand new when I installed it on my new boat. I Removed it and smack it like described above...I rigged up a 12v lead to the connector until I could hear it operating like it should - it took a while but I finally got it going and it has been fine since.

 

[Rain City]

My motherboard just crapped out one day. The unit was 6 years old. It was going to cost $600 to fix it. I used it regularly.

 

[JWS]

I would say that It's your pump then...I had a stuck pump brand new when I installed it on my new boat. I Removed it and smack it like described above...I rigged up a 12v lead to the connector until I could hear it operating like it should - it took a while but I finally got it going and it has been fine since.

Out here again tonight, beat on it pretty good again, nothing. New pump should be here early next week.

 

[JWS]

My motherboard just crapped out one day. The unit was 6 years old. It was going to cost $600 to fix it. I used it regularly.

So you put a new $200 knock off in?