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Old 01-22-2016, 05:31 PM   #21
onemanvan
 
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Default Re: Espar Heater Continued - Diagnostics Adapter

Couple of more troubleshooting guides:
Attached Files
File Type: pdf airtronic_hydronic_troubleshooting.pdf (147.2 KB, 11 views)
File Type: pdf espar_troubleshooting.pdf (607.1 KB, 11 views)
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Old 01-25-2016, 08:03 PM   #22
grozier
 
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Default Re: Espar Heater Continued - Diagnostics Adapter

Quote:
Originally Posted by GoJohnGo View Post
Unless you have the connector to the box, it's probably easier to access the wiring by removing the driver's seat. Six Allen bolts, two screws, and one connector. A five minute job, described in the Westy manual.
Instead of removing the seat, you can remove the lower cushion. There is a metal catch directly under the cushion; you may have to use lever at the front left of the seat to slide it all the way forward to reach it.

Ted
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Old 01-26-2016, 11:57 PM   #23
OldWest
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Default Re: Espar Heater Continued - Diagnostics Adapter

Posted before but don't know if this was in this thread. Think some of the info may be off (photos may have labelled pumps wrong).

If useful, maybe turn into a file here (can't seem to link or attach file).

Search for EsparofMichigan, Airtronic D 4S/hydronic D5 W Z in Westfalia - James Cook.

It's a 12 page document.
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Old 01-27-2016, 12:00 AM   #24
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Default Re: Espar Heater Continued - Diagnostics Adapter

So, in looking at some of the attached files from OneManVan, there looks like several variations of the 4, including our S model and a Plus model and a Camper model.

Wonder which ones are available as a good substitution for our S model (even if need to bypass our central computer console).
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Old 01-27-2016, 02:12 AM   #25
OldWest
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Default Re: Espar Heater Continued - Diagnostics Adapter

Found the 12 pager. Zach previously posted it

http://sprinter-source.com/forum/showthread.php?t=92
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Old 01-27-2016, 02:44 AM   #26
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Default Re: Espar Heater Continued - Diagnostics Adapter

The controller (control unit?) part number 22 5101 00 17 01 from the 12 pager above is apparently unique to this version of Westfalia as someone in Europe was looking and could not find (from Mercedes either as there is also a Mercedes matching part number).

There is one British website which sells a Westfalia specific controller (control unit) with slightly different part number.

http://www.hallselectrical.co.uk/ecu...westfalia.html

Presumably, this control unit is programmed to work with our windshield central computer console.

The D4 Plus version is supposed to have a larger motor according to one website--so can blow more air out. Maybe similar to our D4 S version?
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Old 01-27-2016, 04:27 AM   #27
OldWest
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Default Re: Espar Heater Continued - Diagnostics Adapter

On the EsparofMichigan.com site is a pdf document called "Review of Diagnostic Tools Available for Espar".

Document is a couple years old but seems to identify three tools: EDITH software on a computer, customized Digi-controller, and another tool.

Interesstingly, it seems to imply that a digi-controller is customized to be used as a diagnostic tool (versus all digi-controllers having this capability). Also, document refers to various model years, different adapters for use with various Espar models (with and without high altitude additions). Quite complicated.

Bottom line--diagnostic tools may consist of special programming.

This may explain why some folks have been able to use digicontrollers to reset---right custom programmed digicontroller, right wiring adapter, right ECU on Westy, etc. (Also, reports of resetting Espar heater may not all be Westy heaters?).
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Old 02-05-2016, 08:57 AM   #28
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Default Re: Espar Heater Continued - Diagnostics Adapter

OldWest said "4. From experience, I do not think the high altitude pump works at all altitudes. May work for awhile. Seems the two pump setup works better."

I believe this is true from all my research of posts, especially the S/W forum on Yahoo Groups. Also, it showed that having two pumps was the only method that worked for Hi-Alt. That's why I installed the Hi-Alt pump in parallel with two position power switch. There were times when I forgot to switch the switch but I confirmed by my travels from -100+ to 10,000+ feet that the "switch pump at 5,000 feet" setup definitely works.


AL
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Old 02-05-2016, 08:59 PM   #29
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Default Re: Espar Heater Continued - Diagnostics Adapter

"4. From experience, I do not think the high altitude pump works at all altitudes. May work for awhile. Seems the two pump setup works better."

"I believe this is true from all my research of posts, especially the S/W forum on Yahoo Groups."

I am currently using the high alt. pump at sea level with 100% function. I do notice a slight decrease in the temperature of the air from the ducts.

I have spoken on the phone with several techs at Espar of NA confirmed that running the high alt. pump at sea level will have no negative effect other than a slight reduced output (and actually create less soot).

Just my experience.
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Old 02-07-2016, 04:42 PM   #30
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Default Re: Espar Heater Continued - Diagnostics Adapter

For the past two years, I also have been using a single, high altitude pump from sea level to 10,000 ft. Absolutely no problems. That's my experience.

Joe Hike
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