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Nest Learning Thermostat 2nd Generation Base Motherboard Replacement

Введение

When replacing the base motherboard, removal from the wall is necessary and power to the thermostat must be turned off. The tools required are the blue opening tools, spudger, and a #0 Phillips screwdriver.

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  1. Nest Learning Thermostat 2nd Generation Base Motherboard Replacement, Remove display from wall: шаг 1, изображение 1 из 3 Nest Learning Thermostat 2nd Generation Base Motherboard Replacement, Remove display from wall: шаг 1, изображение 2 из 3 Nest Learning Thermostat 2nd Generation Base Motherboard Replacement, Remove display from wall: шаг 1, изображение 3 из 3

    • Before disassembling your Nest Thermostat, be sure that your HVAC system is powered off.

    • Grasp the display's metal outer ring with your fingers and pull directly away from the wall, leaving the base behind.

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  2. Nest Learning Thermostat 2nd Generation Base Motherboard Replacement, Disconnect wires: шаг 2, изображение 1 из 3 Nest Learning Thermostat 2nd Generation Base Motherboard Replacement, Disconnect wires: шаг 2, изображение 2 из 3 Nest Learning Thermostat 2nd Generation Base Motherboard Replacement, Disconnect wires: шаг 2, изображение 3 из 3

    • Remember to turn off the power to your HVAC system and the thermostat.

    • Disconnect all wires from the grey spring-loaded connectors. This can be done using your fingers.

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    HOW do you disconnect the wires? I can't get them out!

    Beverley Brown - Ответить

    Same here. It is like the springs are in a stuck position

    Bill Redfield - Ответить

    I also can not dis-engage the wires. Feels like the springs are frozen closed.

    Bill Redfield - Ответить

    Hold down the button on the end and the wire should be able to slide right out.

    Amber - Ответить

    Yes, the button on the end of the wires is stuck in the down position. Tried pushing with my fingers and several smaller tools- they appear to be frozen in the down position.

    Garet Ten Cate - Ответить

    If you hold the buttons down while pulling the wires, they'll come right out and the button springs reset.

    Dan - Ответить

  3. Nest Learning Thermostat 2nd Generation Base Motherboard Replacement, Remove screws from wall: шаг 3, изображение 1 из 1

    • Remove the two 40mm screws from the base of the thermostat using a #0 Phillips screw driver.

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  5. Nest Learning Thermostat 2nd Generation Base Motherboard Replacement, Remove base from trim plate: шаг 4, изображение 1 из 3 Nest Learning Thermostat 2nd Generation Base Motherboard Replacement, Remove base from trim plate: шаг 4, изображение 2 из 3 Nest Learning Thermostat 2nd Generation Base Motherboard Replacement, Remove base from trim plate: шаг 4, изображение 3 из 3

    • Unsnap the base from the trim plate (if used) using a plastic opening tool.

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  6. Nest Learning Thermostat 2nd Generation Base Motherboard Replacement, Remove screws from back of base: шаг 5, изображение 1 из 2 Nest Learning Thermostat 2nd Generation Base Motherboard Replacement, Remove screws from back of base: шаг 5, изображение 2 из 2

    • Turn the base over.

    • Remove the four 6 mm screws from the back of the base using a #0 Phillips screwdriver.

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  7. Nest Learning Thermostat 2nd Generation Base Motherboard Replacement, Opening base: шаг 6, изображение 1 из 2 Nest Learning Thermostat 2nd Generation Base Motherboard Replacement, Opening base: шаг 6, изображение 2 из 2

    • Pry the base mother board open from the side using a plastic opening tool.

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  8. Nest Learning Thermostat 2nd Generation Base Motherboard Replacement, Remove base motherboard from base back: шаг 7, изображение 1 из 3 Nest Learning Thermostat 2nd Generation Base Motherboard Replacement, Remove base motherboard from base back: шаг 7, изображение 2 из 3 Nest Learning Thermostat 2nd Generation Base Motherboard Replacement, Remove base motherboard from base back: шаг 7, изображение 3 из 3

    • The base mother board is only held together by light adhesive.

    • Pry the baseboard from the bottom using the flat end of a spudger.

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Заключение

To reassemble your device, follow these instructions in reverse order.

6 участников успешно повторили данное руководство.

Автор

и 4 других участников

Rachael Deptula

Участник с: 09/03/14

1 102 Репутация

1 руководство автора

Значки: 13

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USF Tampa, Team 11-5, Blackwell Fall 2014 Участник USF Tampa, Team 11-5, Blackwell Fall 2014

USFT-BLACKWELL-F14S11G5

5 членов

Автор 12 руководств

8 Комментариев

Would like to know where I can get just the base motherboard.

wesbug - Ответить

Where can we purchase replacement parts?

brettspradley - Ответить

i want the baseboard.. where i can buy? pls help...

john gemora - Ответить

Yep, my base unit lasted exactly 8 days, then it shorted out. The furnace repairman said he has seen it a couple of times, the base unit can't handle the current needed by the furnace so it goes poof. Back to Honeywell...

bbolen - Ответить

No replacement parts from Nest, my base unit died and I have perfectly working thermostat but am forced to buy a new one cause I can't get the base unit on its own.

Adrian Ma - Ответить

I have no clue why people like their thermostats to the degree that they do.. I am both an A/c professional and an Engineer. They use what is called an SCR or silicon controlled rectifier for their switching instead of a tiny relay. An SCR is very sensitive to a spark or voltage spike. Yes the thermostat is pretty cool and has some nice features. It is advanced electronics but using SMC's or Surface Mounted Components?? . Maybe that would work well in a shielded component. But NOT in something that is connected to long external wires. The consumer bought warranty is only one year. I have seen too many issues in the field with their overpriced toys. Not having parts for this Chinese made thermostat? Priceless.

Jon Reid - Ответить

Hey Jon, I’m trying to repair my parent’s 2nd Gen Nest. It sends out “heat” and “cool” signal at the same time. Anyway I can replace a component on the motherboard?

Lizik -

Good post. Wish I had read before I got a Nest thermostat. What would you recommend as a good alternative? I hate when you can't replace simple components and parts cheaply and quickly. What the !&&*.

doughboy1338 -

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