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Discussion Starter · #1 · (Edited)
Heat and A/C question

My parents 97 RR 4.6 has a book displayed on the heater controls. I have read a lot about this problem in the last week or so. The problem is it only comes on once in awhile and the A/C goes from cold to warm...From what i understand this is common but what do i do to fix it? Is there a site i could go to to further look into this problem?
 

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sensor problem.

:drink1: A/C - Inconsistent Interior Temperatures
No: 82/01/02NAS
Ref:Issue: 1
Date: 02/22/02


Improved HVAC Temperature Sensor

AFFECTED VEHICLE RANGE:

Range Rover (LP) Up to 1A450120

SITUATION:

INCONSISTENT IN-VEHICLE TEMPERATURES

The customer may complain of too much heat in cold conditions or being too cold in hot conditions. The in-car temperature sensor is ventilated by a miniature fan, which draws air from inside the vehicle. The thrust bearing of the fan can wear prematurely, causing the fan to become stiff or sluggish. The starting torque of the motor is low, permitting the motor to sit in a stalled state. When the fan fails the sensor is not ventilated and the fascia temperature is sensed instead of the in-car temperature.

RESOLUTION:

REPLACE FAULTY IN-CAR TEMPERATURE SENSOR

NOTE: The condition described in this TIB is NOT the "32 degree/snowflake" issue dealt with in TIB 80/01/98/NAS and Parts Bulletin PGI99-07. If a Range Rover HVAC appears to overheat or overcool intermittently and it has the latest head unit, suspect the aspirator.

Where a customer complaint of the above is confirmed, replace the temperature sensor with a new part.

PARTS INFORMATION:

JTF000030 Temperature sensor (includes fan) Qty 1

WARRANTY CLAIMS:

82.20.93 Time 0.60 hrs.
Install replacement fan/sensor assembly

FAULT CODE: D

Normal warranty policy and procedures apply.
Material allowance is included in labor operation.

REPAIR PROCEDURE

REPLACE FAN SENSOR UNIT





1. Use the smoke from an extinguished match or similar source to determine that the sensor motor has stalled.

2. Refer to Workshop Manual, Air Conditioning, section 82.20.93 and perform the fan/sensor replacement repair.


Copyright © 2005 ALLDATA LLC
 

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Discussion Starter · #3 · (Edited)
i'll look into it thanks!!! :drink1: Where is that part located, and is there a way to test it to make sure.. I am gonna look at it tomorrow and just trying to save myself some time.
 

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Discussion Starter · #6 ·
Pascaltissot said:
:cool: Hi , it is a very good article ,I enjoyed very much ,and easy to understand ,thanks . Did you finally got things working again ? keep us informed please .

Saludos cordiales .
pascal
I went back to check up on the problem...Now I can't get it to show....Me reading this article scared it!!!
 
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