Cruisers Forum

  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
Thread Tools Search this Thread Rate Thread Display Modes
Old 20-01-2021, 05:01   #1
Registered User
Sojourner's Avatar

Join Date: Oct 2017
Location: On the boat!
Boat: SY Wake: 53' Amel Super Maramu
Posts: 863
Webasto diesel heater weird issue

My webasto air top heater is doing something strange... Turn the dial all the way up, it starts up, revvs up, blasts heat for a minute, then the pump stops clicking and the fan speed falls to barely above idle. Never really gets going fast again, altho the clicking pump sometimes starts up slow again after a few/20 minutes. There is NO error message/blinking light. I changed the fuel filter but no improvement. I changed the burner screen earlier as a stray fender blocked the exhaust and coked it up, the error codes were working fine then. I pulled the fuse to reset it. No other significant buildup anywhere...

Any ideas? Thermostat telling it its too hot? Why no error code?

Hope everyone is well, it's been a minute since I've been on here...
Sojourner is offline   Reply With Quote
Old 20-01-2021, 06:20   #2
Senior Cruiser
GordMay's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 41,103
Images: 241
Re: Webasto diesel heater weird issue

Webasto ‘Air Top’: 2000 ST, EVO 40, & EVO 55
Troubleshooting begins on page 55.

Webasto Air Heater Service Manual & PDF Guides ➥

Webasto Controller Service Manual & PDF Guides ➥

Webasto Useful Information & Guides ➥
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"

GordMay is offline   Reply With Quote

diesel, heater

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Webasto Air Heater Wiring Issue / Error T12 brunoniko Plumbing Systems and Fixtures 0 09-12-2020 22:11
Troubleshooting Webasto Diesel Heater witzgall Construction, Maintenance & Refit 21 24-01-2017 07:09
Webasto diesel heater maintenance s/vPainkiller Construction, Maintenance & Refit 13 30-09-2013 08:07
Webasto/espar heater install, diesel line xluke Construction, Maintenance & Refit 1 14-08-2013 20:55
For Sale: Webasto Diesel Heater cerro Classifieds Archive 0 04-09-2010 10:47

Advertise Here

All times are GMT -7. The time now is 23:16.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.