Discovery I (LJ) V8-3.9L (1994): Heating and Air Conditioning

Also for this vehicle: Discovery I (LJ) V8-4.0L (1996), Discovery II (LT) V8-4.0L (2002), Discovery II (LT) V8-4.6L (2003), Discovery Body Repair Manual (1995 on), Discovery Electrical Troubleshooting Manual (1995), Discovery Electrical Troubleshooting Manual (1996), Discovery Electrical Troubleshooting Manual (1997 on), Discovery II (NAS), Discovery II Circuit Diagrams (2000 model year), Discovery II Circuit Diagrams (2003 model year), Discovery II Electrical Library (1999-2003), Discovery II Technical Bulletins, Discovery II (UK), Discovery Technical Bulletins, 300Tdi Discovery, LR3/Disco 3, LR3 (LA) V6-4.0L (2006), LR3 (LA) V8-4.4L (2009), LR3 (LA) V8-4394cc 4.4L (2005), LR4 (LA) V8-5.0L (2010).

Diagnostics Maintenance Engine Transmission Brakes Electrical Steering & suspension Heating & A/C Body & interior

Choose Sections to see everything in a chapter, or a chapter title to start at its first page.

01Diagnostic Trouble Codes (DTC)Diagnostic Trouble Codes (DTC): Sections
02Relays and Modules Relays and Modules: Sections
03Sensors and Switches Sensors and Switches: Sections
04Maintenance Maintenance: Sections
05Engine, Cooling and Exhaust Engine, Cooling and Exhaust: Sections
06Powertrain Management Powertrain Management: Sections
07Transmission and Drivetrain Transmission and Drivetrain: Sections
08Brakes and Traction Control Brakes and Traction Control: Sections
09Starting and Charging Starting and Charging: Sections
10Power and Ground Distribution Power and Ground Distribution: Sections
11Steering and Suspension Steering and Suspension: Sections
12Heating and Air Conditioning Heating and Air Conditioning: Sections
- Air Conditioning Switch › Component Information50 pages
  - Locations › A/C Switch Amplifier, Rear (Z216)2 3 4
  - Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…46
- Air Door, HVAC › Air Door Actuator / Motor, HVAC › Component Information › Locations › Air Recirculation Solenoid (K123)2
- Blower Motor › Component Information79 pages
- Blower Motor Relay › Component Information49 pages
  - Locations › A/C Fan Speed Relay, Rear (K205)2 3
  - Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…46
- Blower Motor Resistor › Component Information › Locations › Blower Resistor Unit, Front (Z214)2
- Blower Motor Switch › Component Information › Locations › Fan Speed Switch, Front (X247)2
- Cabin Ventilation Duct › Component Information › Technical Service Bulletins4 pages
  - Customer Interest for Cabin Ventilation Duct: › TEC8001972 › Jun › 97 › A/C System - Water Leaks to Interior2
  - All Technical Service Bulletins for Cabin Ventilation Duct: › TEC8001972 › Jun › 97 › A/C System - Water Leaks to Interior2
- Compressor HVAC › Compressor Clutch › Component Information47 pages
  - Locations
  - Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…46
- Compressor Clutch Relay › Component Information47 pages
  - Locations
  - Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…46
- Condenser Fan › Condenser Fan Motor › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…46
- Condenser Fan Diode › Component Information › Locations › Condenser Fan Control Diode 1 (Z209)2 3
- Condenser Fan Motor Relay, HVAC › Component Information48 pages
  - Locations › Condenser Fan Relay (K109)2
  - Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…46
- Control Module HVAC › Component Information47 pages
  - Locations
  - Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…46
- Coolant Temperature Sensor / Switch HVAC › Component Information47 pages
  - Locations
  - Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…46
- Evaporator Case › Component Information › Technical Service Bulletins18 pages
  - Customer Interest:7 pages
    TEC762297 › Jan › 98 › Body - Water Leaks To The Interior2 3 4 5
    TEC8001972 › Jun › 97 › A/C System - Water Leaks to Interior2
  - All Technical Service Bulletins for Evaporator Case:9 pages
    TEC762297 › Jan › 98 › Body - Water Leaks To The Interior2 3 4 5
    TEC8001972 › Jun › 97 › A/C System - Water Leaks to Interior2
    TEC040195 › Nov › 95 › Dashboard - Torque Specifications2
  - All Other Service Bulletins for Evaporator Case: › TEC190403 › Dec › 03 › Emissions/Fuel Systems - Difficulty Filling Fuel Tank2
- Evaporator Core › Component Information › Service and Repair
- Evaporator Drain Tube › Component Information › Technical Service Bulletins10 pages
  - Customer Interest for Evaporator Drain Tube: › TEC762297 › Jan › 98 › Body - Water Leaks To The Interior2 3 4 5
  - All Technical Service Bulletins for Evaporator Drain Tube: › TEC762297 › Jan › 98 › Body - Water Leaks To The Interior2 3 4 5
- Evaporator Temperature Sensor / Switch › Component Information48 pages
  - Locations › A/C Evaporator Temperature Switch, Front (X101)2
  - Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…46
- Heater Control Valve › Heater Control Valve Actuator › Component Information › Locations › Maximum Cool Switch, Left (X267)2
- Heater Core › Component Information › Service and Repair
- Heater Core Case › Component Information › Technical Service Bulletins6 pages
  - All Technical Service Bulletins: › TEC760195 › Mar › 95 › Heater Plenum - Water Leaks to Interior2
  - Customer Interest: › TEC760195 › Mar › 95 › Heater Plenum - Water Leaks to Interior2
  - All Other Service Bulletins for Heater Core Case: › TEC440694 › Jul › 94 › Automatic Gear Selector - Graphic Film Torn2
  - All Other Service Bulletins for Heater Core Case: › TEC440694 › Jul › 94 › Automatic Gear Selector - Graphic Film Torn
- Hose/Line HVAC › Component Information › Technical Service Bulletins6 pages
  - Customer Interest for Hose/Line HVAC: › TEC820298 › Mar › 98 › A/C - Low Pressure Line Refrigerant Leaks2 3
  - All Technical Service Bulletins for Hose/Line HVAC: › TEC820298 › Mar › 98 › A/C - Low Pressure Line Refrigerant Leaks2 3
- Refrigerant › Component Information4 pages
  - Technical Service Bulletins › A/C System - CFC Free Refrigerant (R134a)2
  - Specifications › Capacity Specifications2
- Refrigerant Control Solenoid Valve › Component Information › Locations › A/C Water Valve Diode, Rear (Z228)2
- Refrigerant Oil › Component Information › Specifications › Capacity Specifications2
- Refrigerant Pressure Sensor / Switch, HVAC › Component Information › Locations › A/C Dual Pressure Switch (X102)2
- Relays and Modules - HVAC194 pages
  - Blower Motor Relay › Component Information49 pages
    Locations › A/C Fan Speed Relay, Rear (K205)2 3
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…46
  - Compressor Clutch Relay › Component Information47 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…46
  - Condenser Fan Motor Relay, HVAC › Component Information48 pages
    Locations › Condenser Fan Relay (K109)2
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…46
  - Control Module HVAC › Component Information47 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…46
  - System Relay, HVAC › Component Information › Locations › A/C Control Relay, Rear (K194)2 3
- Sensors and Switches - HVAC150 pages
  - Air Conditioning Switch › Component Information50 pages
    Locations › A/C Switch Amplifier, Rear (Z216)2 3 4
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…46
  - Blower Motor Switch › Component Information › Locations › Fan Speed Switch, Front (X247)2
  - Coolant Temperature Sensor / Switch HVAC › Component Information47 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…46
  - Evaporator Temperature Sensor / Switch › Component Information48 pages
    Locations › A/C Evaporator Temperature Switch, Front (X101)2
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…46
  - Refrigerant Pressure Sensor / Switch, HVAC › Component Information › Locations › A/C Dual Pressure Switch (X102)2
  - Ventilation Switch › Component Information › Locations
- System Relay, HVAC › Component Information › Locations › A/C Control Relay, Rear (K194)2 3
- Ventilation Switch › Component Information › Locations
13Restraint Systems Restraint Systems: Sections
14Accessories and Optional Equipment Accessories and Optional Equipment: Sections
15Body and Frame Body and Frame: Sections
16Cruise Control Cruise Control: Sections
17Instrument Panel, Gauges and Warning Indicators Instrument Panel, Gauges and Warning Indicators: Sections
18Lighting and Horns Lighting and Horns: Sections
19Windows and Glass Windows and Glass: Sections
20Wiper and Washer Systems Wiper and Washer Systems: Sections