How to Service and Repair the A/C Switch in the EATC Climate Control Assembly on Mercury Grand Marquis?

To maintain Electronic Automatic Temperature Control (EATC) Assembly, switch off SRS, loosen finish panel and unconnect the connector. Disassemble the EATC component off the panel, followed by the climate control assembly by loosening the nuts, vacuum harness and connecting wire. Installation is reversed.

How to Service and Repair the Manual A/C Switch Control Assembly on Mercury Grand Marquis?

To service the manual A/C control assembly, loosen the assembly, and then the function selection by pressing snap tabs (the knob will fall off). Then turn the temperature blend control switch and the blower motor switch unscrewed and pulled out. To install, undo removal.

OEM Mercury Grand Marquis A/C Switch

Air Conditioning Switch

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11 A/C Switches found

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Mercury Grand Marquis Temperature Control Part Number: F8AZ-19B888-AB
$44.84 MSRP: $71.20
You Save: $26.36 (38%)
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Product Specifications
- Other Name: Switch Assembly; HVAC Mode Control Switch; Climate Control Module; Blower Control Switch; Control Switch; Mode Control
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003-2011 Mercury Grand Marquis | GS, GSL, Limited Edition, LS, LSE, Ultimate Edition | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
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Mercury Grand Marquis Temperature Control Part Number: F4DZ-19986-A
$28.38 MSRP: $45.07
You Save: $16.69 (38%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Switch Assembly; HVAC Blower Control Switch; Climate Control Module; Blower Motor Resistor; Fan Switch; Blower Motor Switch; Blower Control Switch
- Replaces: F2DZ-19986-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1995-2011 Mercury Grand Marquis | GS, GSL, Limited Edition, LS, LSE, Ultimate Edition | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
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Mercury Grand Marquis Temperature Control Part Number: XW7Z-19C733-AA
Product Specifications
- Other Name: Potentiometer Assembly; HVAC Temperature Control Switch; Climate Control Module; Blower Control Switch; AC Temperature Switch; Potentiometer
- Replaces: F8AZ-19C733-AA, F5AZ-19C733-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003-2011 Mercury Grand Marquis | GS, GSL, Limited Edition, LS, LSE, Ultimate Edition | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
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Mercury Grand Marquis Blower Motor Switch Part Number: D5AZ-19986-A
Product Specifications
- Other Name: Switch Assembly; Climate Control Module; Blower Control Switch; Blower Motor Resistor
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1984-1990 Mercury Grand Marquis | Base, Colony Park, GS, LS | 8 Cyl 5.0 L GAS, 8 Cyl 5.8 L GAS
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Mercury Grand Marquis Temperature Control Part Number: 3W7Z-19980-AA
Product Specifications
- Other Name: Control; HVAC Temperature Control Panel; Climate Control Module; Blower Control Switch; Heater Control; Dash Control Unit; Controller
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003-2011 Mercury Grand Marquis | GS, GSL, Limited Edition, LS, LSE, Ultimate Edition | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
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Mercury Grand Marquis Temperature Control Part Number: 1W7Z-19980-AA
Product Specifications
- Other Name: Control; Climate Control Module; Blower Control Switch; Dash Control Unit
- Manufacturer Note: WITH ATC
- Replaces: F8AZ-19980-BA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1998-2002 Mercury Grand Marquis | GS, LS | 8 Cyl 4.6 L GAS
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Mercury Grand Marquis Dash Control Unit Part Number: FOVY-19980-A
Product Specifications
- Other Name: Control; Climate Control Module
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1990-1991 Mercury Grand Marquis | GS, LS | 8 Cyl 5.0 L GAS
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Mercury Grand Marquis Blower Motor Switch Part Number: FOVY-19986-B
Product Specifications
- Other Name: Switch Assembly; Climate Control Module; Blower Control Switch; Blower Motor Resistor
- Manufacturer Note: ATC microprocessor., with ATC
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1991-2002 Mercury Grand Marquis | GS, LS | 8 Cyl 4.6 L GAS, 8 Cyl 5.0 L GAS
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Mercury Grand Marquis Temperature Control Part Number: F8AZ-19980-AA
Product Specifications
- Other Name: Panel Assembly - Control; HVAC Temperature Control Panel; Climate Control Module; Blower Control Switch; Heater Control; Dash Control Unit
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1998-2011 Mercury Grand Marquis | GS, GSL, Limited Edition, LS, LSE, Ultimate Edition | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
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Mercury Grand Marquis Blower Motor Switch Part Number: E4VY-19986-A
Product Specifications
- Other Name: Switch Assembly; Climate Control Module; Blower Control Switch; Blower Motor Resistor
- Manufacturer Note: WITH ATC
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1984-1990 Mercury Grand Marquis | Base, Colony Park, GS, LS | 8 Cyl 5.0 L GAS, 8 Cyl 5.8 L GAS
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Mercury Grand Marquis Temperature Control Part Number: F6VZ-19980-AB
Product Specifications
- Other Name: Control; Climate Control Module; Blower Control Switch; Dash Control Unit
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1995-1997 Mercury Grand Marquis | GS, LS | 8 Cyl 4.6 L GAS

Mercury Grand Marquis A/C Switch

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Mercury Grand Marquis A/C Switch Parts and Q&A

Temperature Control
F4DZ-19986-A
Q: How to Service and Repair the A/C Switch in the EATC Climate Control Assembly on Mercury Grand Marquis?
A: To maintain Electronic Automatic Temperature Control (EATC) Assembly, switch off SRS, loosen finish panel and unconnect the connector. Disassemble the EATC component off the panel, followed by the climate control assembly by loosening the nuts, vacuum harness and connecting wire. Installation is reversed.
Blower Motor Switch
FOVY-19986-B
Q: How to Service and Repair the Manual A/C Switch Control Assembly on Mercury Grand Marquis?
A: To service the manual A/C control assembly, loosen the assembly, and then the function selection by pressing snap tabs (the knob will fall off). Then turn the temperature blend control switch and the blower motor switch unscrewed and pulled out. To install, undo removal.