SquirrellCook
Forum Member
I have been very naughty and not looked my air eberspacher at all since installing it around 12 years ago.
I have noticed it shutting down early sometimes for the last couple of years.
So the decision was made to service it, and I thought I’d share it with all six of you.
Planning ahead I purchased a service kit and a new glow plug from Mellors.
Removed and on the bench.
First remove the outlet nozzle. It held on by four protrusions and can be a fight to remove without splitting it.
Next remove the electrical housing.
Disconnect the glow plug using a 7mm spanner. Also remove the wiring loom from the ECU. A little clip on the side holds it in place.
Remove the little plastic rivets from the housing. If you break them the kit has spares.
Remove the remaining plugs from the ECU and remove the ECU.
Undo the four M5 screws and separate the fan unit from the burner.
Remove the two screws to expose the burner.
You can see why you need to have the gaskets and seal handy.
Remove the glow plug and the screen. The screen may put a fight up and get destroyed.
This is where you could do with a ultrasonic cleaner. I used solvents and followed with glass bead blasting once dry. Then throughly washed it in hot water to remove any traces of beads.
A new gasket and felt seal fitted.
Assemble the two halves with a new gasket. I kept the support for the gasket in place until the halves were together, then removed the excess.
Sensors refilled and getting closer.
Assemble the covers using the new rivets having made sure all the connections have been made.
Finish off by fitting the electrical cover and end piece.
If all has gone well you can reinstall it and give it a test firing. Don’t expect it to work perfectly first time, it may need a couple of stops and starts before it settles down.
I have noticed it shutting down early sometimes for the last couple of years.
So the decision was made to service it, and I thought I’d share it with all six of you.
Planning ahead I purchased a service kit and a new glow plug from Mellors.
Removed and on the bench.
First remove the outlet nozzle. It held on by four protrusions and can be a fight to remove without splitting it.
Next remove the electrical housing.
Disconnect the glow plug using a 7mm spanner. Also remove the wiring loom from the ECU. A little clip on the side holds it in place.
Remove the little plastic rivets from the housing. If you break them the kit has spares.
Remove the remaining plugs from the ECU and remove the ECU.
Undo the four M5 screws and separate the fan unit from the burner.
Remove the two screws to expose the burner.
You can see why you need to have the gaskets and seal handy.
Remove the glow plug and the screen. The screen may put a fight up and get destroyed.
This is where you could do with a ultrasonic cleaner. I used solvents and followed with glass bead blasting once dry. Then throughly washed it in hot water to remove any traces of beads.
A new gasket and felt seal fitted.
Assemble the two halves with a new gasket. I kept the support for the gasket in place until the halves were together, then removed the excess.
Sensors refilled and getting closer.
Assemble the covers using the new rivets having made sure all the connections have been made.
Finish off by fitting the electrical cover and end piece.
If all has gone well you can reinstall it and give it a test firing. Don’t expect it to work perfectly first time, it may need a couple of stops and starts before it settles down.
