Go Back   Trawler Forum > Maintenance and Systems > Other Trawler Systems

Thread Tools Display Modes
Old 03-21-2013, 07:55 PM   #1
Veteran Member
Join Date: Jan 2008
Posts: 98
Espar Diesel Furnace not working....

I have an Espar Diesel Furnace on board and it has worked flawlessly for 6 years now.
When I turn it on now, it just runs an runs and blows air but it is not "Hot".
Has anyone else had this issues and if so, what was the fix?

Is the glow plug out??

thanks for any help,


Taras is offline   Reply With Quote
Old 03-21-2013, 08:25 PM   #2
Senior Member
Jay N's Avatar
City: Edmonds, WA
Country: USA
Vessel Name: WESTERLY
Vessel Model: 1974 Pacific Trawler 37
Join Date: Oct 2007
Posts: 365
Hi Taras,

What model do you have? What year?

The fact that an Espar furnace has worked "flawlessly for 6 years" and no longer works, usually means that it is in dire need of servicing, which based on my experience with a D7 and D5L should occur every couple of years.

Could be glow plug, fuel dosing pump, blower motor failing to reach needed rpm, control box/wiring failures, inadequate DC voltage, etc, etc, etc.

Time to find a local service provider.

Jay N is offline   Reply With Quote
Old 03-21-2013, 08:43 PM   #3
boatpoker's Avatar
City: Port Credit
Country: Ontario
Vessel Name: DIRT FREE
Vessel Model: Benford Fantail 38
Join Date: Sep 2012
Posts: 1,817
They need to be cleaned of soot on a regular basis. You also may have a very small inline filter that has not been changed for years and the injectors carbon up over time.

If you have a manual you service this yourself but I'd remove the whole unit from the boat before attempting disassembly. That soot can make one helluva mess.
boatpoker is offline   Reply With Quote
Old 03-21-2013, 09:13 PM   #4
rochepoint's Avatar
City: Sidney BC
Country: Canada
Vessel Name: Rochepoint
Vessel Model: Cheer Men PT38 Sedan
Join Date: Apr 2009
Posts: 1,057
What model Espar, how long does it run for without producing heat, any smoke out the exhaust? If it doesn't smoke on trying to start it is probably the glow plug, if you have tried to start it a number of time it will be flooded. If you put a new glow plug in and it starts watch out for the smoke, it will be a lot (very embarrassing) and could also be spitting fire out the exhaust. How do I know.....just look at my walkway in the boathouse.....
Mike Barge
MV Rochepoint
Sidney, British Columbia.
rochepoint is online now   Reply With Quote
Old 03-21-2013, 09:19 PM   #5
SomeSailor's Avatar
City: Everett, WA
Vessel Name: Honey Badger
Vessel Model: 42' CHB Europa
Join Date: Oct 2011
Posts: 784
I'll second that. They'll smoke like crazy once flooded.

The good news is glow plugs are very easy to check and change.
SomeSailor is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -5. The time now is 12:03 AM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012