Field Repairs/Maintenance -- Eberspacher/Espar/Webasto

[Dockhead]

Originally Posted by transmitterdan

I have the same D10 heater. The only failure we have had was the controller box on top. It just died suddenly.

Spares I recommend:

Controller
Glow plug
Combustion fan
Water pump

For the cost to buy these items you can almost justify carrying a spare heater. They are not huge and are easy to swap out. Mine takes about 20 minutes to remove/replace. 10 of that is crawling into the engine space.

Flame sensor?

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[DeepFrz]

Glow plug screen.

[transmitterdan]

Originally Posted by Dockhead

Flame sensor?

I haven't heard of a failure on that. It's a pretty simple device (thermistor I think).
If you are considering getting a lot of spares it's probably better to look for a used working unit on Ebay and just keep it as the one spare. On our boat it's faster to change a whole unit than an individual part. There are usually a couple available all the time.
Also, it's a good idea to burn a couple liters of kerosene (or Jet A) once or twice a season. Just feed the little clacking pump from a small jug.