Thule electric step probems help required (1 Viewer)

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Portland

Free Member
Oct 31, 2013
923
1,424
Conwy
Funster No
28,820
MH
C class
Exp
20 years
The step on my Autotrail Savannah is very eratic when working, sometimes not working at all other times stopping at random. It goes down first time of a morning. But never fully retracts.
The step action is totally free, the motor is new. Motor replaced due to sheared gears, tried Sargents many times but have no reply
 

icantremember

LIFE MEMBER
Sep 2, 2010
8,372
17,734
Near to Watton in Norfolk
Funster No
13,512
MH
Hymer T-SL668
Exp
since 2005
We had a similar problem on a Autocruise Augusta which was caused by a fault in the Sargent unit .. it was replaced under warranty and all was then well.
 
Apr 27, 2016
7,032
8,246
Manchester
Funster No
42,762
MH
A class Hymer
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Since the 80s
Another possibility is the switch. Is it a separate switch or is it in the Sargent unit?
 
Nov 13, 2012
441
438
Somerset
Funster No
23,678
MH
coachbuilt
Exp
since 2000
Had same problem on my savannah it was a small drive shaft for operating step took dealer 15 minutes to replace apparently a common fault.

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Jaws

LIFE MEMBER
Sep 26, 2008
23,868
73,776
Thetford Norfolk
Funster No
4,189
MH
C class, Chieftain
Exp
since 2006 ( I think ! )
The step on my Autotrail Savannah is very eratic when working, sometimes not working at all other times stopping at random. It goes down first time of a morning. But never fully retracts.
The step action is totally free, the motor is new. Motor replaced due to sheared gears, tried Sargents many times but have no reply
It will be the Sargent EB50 box .. Pretty common .
I spent weeks trying to sort mine out.. I even removed every component from the board, replaced all the TTL chips, the diodes, and transistors.
In the end I gave up and sent it to Sargent.
Got one back ( a replacement ) almost by return with a hand written note saying they could not find the fault either !

Some time later I received an email..
The fault was an intermittent break in one of the connecting tunnels between the board layers.. Made me feel a bit better about not finding the problem myself :)
 

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