I need some help troubleshooting the blower fans of my '93 XJS.
The blower fans work when I put the selector to ‘‘low’’. When
I set the speed to medium, high or defrost the blower speed
remains the same as on the low setting.
Therefore, I wanted to check the four relays as described in
The Book. But I have trouble finding the unit. I am not a
native English speaker and therefore not sure if I
understand all terms used in the book correctly. Could
somebody please clarify the following:
I assume that the '93 model has also this unit with the
relays.
Concerning the location of the unit, The Book reads: ‘‘unit
that is located adjacent to the left side footwell; the
footwell register and the small padded cover must be removed
to get at it.’’ I have removed what I believe is the padded
cover (called ''console pannel in the Parts&Service Manual
91-96)) after having removed the cover of the vent. Is this
correct? Which part is the footwell register?
Does somebody have a picture of the unit (and maybe its
location) that I am looking for?
Thank you very much for your help.
Harribo–
Harribo
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
In reply to a message from Harribo sent Sun 17 May 2009:
Your '93 car doesn’t have the relay unit. Instead a switching
system based around a Darlington transistor mounted on a circuit
board attached to the blower motor duct regulates the speed.
This is the Delanaire Mk III system. The relay unit is only fitted
to the Mk II.
The bad news is that to repair it you have to get the blower motor
out. The good news is that once you have, the components cost
pennies.
If you need a picture of teh circuit board, let me know ?–
The original message included these comments:
Therefore, I wanted to check the four relays as described in
I assume that the '93 model has also this unit with the
relays.
In reply to a message from almcl sent Tue 19 May 2009:
Thanks a lot for your reply.
I think I have come across some descriptions on how to get
the motors out and repair the transistor here on the forum.
Also with links to pictures if I remember well.
If not, I will come back to you.
Am I right if I think that it is not simply the control
switch that is not working as all other settings apart from
‘‘low’’ are not working?
In reply to a message from Harribo sent Tue 19 May 2009:
The system is controlled by a microprocessor. In theory high speed
should work even if the low and medium speeds do not, but corrosion
of the circuit board can have strange effects.–
The original message included these comments:
Am I right if I think that it is not simply the control
switch that is not working as all other settings apart from