Nest Learning Thermostat 2nd Generation Motherboard Replacement

简介

Replacing the main motherboard in the display is not difficult as long as the prerequisite guides are followed. The tools needed access the motherboard are a #0 Phillips Screwdriver, tweezers, and the plastic opening tools.

你所需要的

步骤 1 Removal from Wall

Nest Learning Thermostat 2nd Generation Motherboard Replacement, Removal from Wall: 步骤 1 中的图像 1，2

Nest Learning Thermostat 2nd Generation Motherboard Replacement, Removal from Wall: 步骤 1 中的图像 2，2

Grasp the display's metal outer ring with your fingers and pull directly away from the wall.

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步骤 2 Open Display

Nest Learning Thermostat 2nd Generation Motherboard Replacement, Open Display: 步骤 2 中的图像 1，1

Turn the display over.
Remove the four 6 mm screws from the back of the display using a Phillips #0 screwdriver.

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步骤 3 Remove the back of the display

Nest Learning Thermostat 2nd Generation Motherboard Replacement, Remove the back of the display: 步骤 3 中的图像 1，2

Nest Learning Thermostat 2nd Generation Motherboard Replacement, Remove the back of the display: 步骤 3 中的图像 2，2

Pinch the gray 20-pin connector with your fingers and pull directly away from the display.
Do NOT pull too far as there is a ribbon on the back panel connecting the 20-pin connector to the display.

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步骤 4 Disconnect the base connection ribbon cable.

Nest Learning Thermostat 2nd Generation Motherboard Replacement, Disconnect the base connection ribbon cable.: 步骤 4 中的图像 1，3

Nest Learning Thermostat 2nd Generation Motherboard Replacement, Disconnect the base connection ribbon cable.: 步骤 4 中的图像 2，3

Nest Learning Thermostat 2nd Generation Motherboard Replacement, Disconnect the base connection ribbon cable.: 步骤 4 中的图像 3，3

Locate the blue pull tab at the end of the ribbon which says, "1. Pull".
Grasp the tab with your fingers and pull directly away from the motherboard.

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步骤 5 Lift battery from the base

Nest Learning Thermostat 2nd Generation Motherboard Replacement, Lift battery from the base: 步骤 5 中的图像 1，2

Nest Learning Thermostat 2nd Generation Motherboard Replacement, Lift battery from the base: 步骤 5 中的图像 2，2

Locate the blue tab which says, "2. Pull".
Use tweezers to pull the battery up and away from the display.
Do NOT pull too far, as the battery is still connected to the motherboard and must be unplugged.

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步骤 6 Disconnect the battery from the motherboard

Nest Learning Thermostat 2nd Generation Motherboard Replacement, Disconnect the battery from the motherboard: 步骤 6 中的图像 1，2

Nest Learning Thermostat 2nd Generation Motherboard Replacement, Disconnect the battery from the motherboard: 步骤 6 中的图像 2，2

Locate the blue tab which says "3 unplug".
Grasp the battery with your fingers. Pull gently directly away from the display to unplug the battery from the motherboard.

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步骤 7 Remove battery from the display

Nest Learning Thermostat 2nd Generation Motherboard Replacement, Remove battery from the display: 步骤 7 中的图像 1，3

Nest Learning Thermostat 2nd Generation Motherboard Replacement, Remove battery from the display: 步骤 7 中的图像 2，3

Nest Learning Thermostat 2nd Generation Motherboard Replacement, Remove battery from the display: 步骤 7 中的图像 3，3

Grasp the battery with your fingers and pull directly away from motherboard to separate the battery from the display.

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步骤 8 Locate auto-away sensor

Nest Learning Thermostat 2nd Generation Motherboard Replacement, Locate auto-away sensor: 步骤 8 中的图像 1，1

Locate the auto-away sensor.

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步骤 9 Remove screws

Nest Learning Thermostat 2nd Generation Motherboard Replacement, Remove screws: 步骤 9 中的图像 1，2

Nest Learning Thermostat 2nd Generation Motherboard Replacement, Remove screws: 步骤 9 中的图像 2，2

Remove the four 3mm screws with a #0 Phillips screwdriver.
Remove the one 4mm screw located at the edge of the auto-away sensor. Use a #0 Phillips screwdriver.

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