Jaguar Repair: problem with air condition setem, jaguar xj6, mousavi

Question
QUESTION: Dear Sammie
hi. I have a 1977 6 cylinder jaguar and form yesterday it's air condition system failed, I checked fuses and found them ok. please advice, please send me the related wiring diagram if it is avaialbel.
thanks and regards.
D. Mousavi

ANSWER: If your system is low on refrigerant the compressor will not work.
Please check your refrigerant level. Also the expansion valve also goes bad.
I can not send you any wiring diagrams. Please buy a manual,it will have all the diagrams that you will need. You did not give much to go on. Good luck. Sam

---------- FOLLOW-UP ----------

QUESTION: Hi sammie
it seems I could not explain the exact case, anyway the real  problem is that the fan for heating system dos not work,all fuses are ok.another question:how can I buy a manual?
thanks and best regards
D. Mousavi

Answer
First check to see if you are getting voltage to the switch(189). Next check to see if voltage is getting to Resistor (188). If Voltage is at the motor(33) and it is not working the motor is bad. The resistor (188) sometimes causes this problem. Check on line at(www.welshent.com) or other online web sites to find a manual. Please buy the Repair Haynes manual.

http://www.welshent.com/catalogs/welsh_xj6.pdf  (parts catalog)
http://www.themotorbookstore.com/xj6.html (Jaguar XJ6 Repair & Service Manual 1968-1986)

Sammie