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Versão atual de: jayeff (detalhes da votação) ,

Título:

Terrible noise (fan). How to open and fix device?

Texto:

Hi there,
I bought a “Cleargrass” air quality tester from China:
[image|1976747]
Great device (while it worked), great build quality. See https://qingping.co/air-monitor/overview (Google translate helps with the Chinese) for more details.
A few days ago, it started to make terrible noise:[br]
-
[video|2086]
I guess it’s an internal fan. The device has a particulate matter air quality sensor. The way it works is: sucks in air and counts particles via laser reflection. So it definitely has a fan that’s also visible here in the explosion chart and video:
[image|1976757]
[br]
-
[video|2085]
The device looks really solid and has no visible screws.
Two questions:
# Any idea how I might be able to open it? [br]
Is it glued together? Would that mean: put a hair dryer at the back of the device and try to pull off the lid on the back (see explosion chart)
# If I can open it, do I have a chance to fix the fan, as it seems to be a whole sensor module from the explosion chart.
+
Would appreciate any help. It’s a great device but the noise is terrible. Would be a shame if I had to throw it away.
Thanks,[br]
-
Holger
No idea how to open it, I don’t even see a way to open it:
[image|1976774]
[image|1976776]
(And FYI: I sent the Chinese manufacturer an email, but no answer)
-
-
—-
Update: removed back lid:
[image|1977483]

dispositivo:

Cleargrass Air Quality Tester

Status:

open

Resposta Aceita:

+623542

Editado por: Holger Mayer ,

Título:

Terrible noise (fan). How to open and fix device?

Texto:

Hi there,
I bought a “Cleargrass” air quality tester from China:
[image|1976747]
Great device (while it worked), great build quality. See https://qingping.co/air-monitor/overview (Google translate helps with the Chinese) for more details.
A few days ago, it started to make terrible noise:[br]
[video|2086]
I guess it’s an internal fan. The device has a particulate matter air quality sensor. The way it works is: sucks in air and counts particles via laser reflection. So it definitely has a fan that’s also visible here in the explosion chart and video:
[image|1976757]
[br]
[video|2085]
The device looks really solid and has no visible screws.
Two questions:
# Any idea how I might be able to open it? [br]
Is it glued together? Would that mean: put a hair dryer at the back of the device and try to pull off the lid on the back (see explosion chart)
# If I can open it, do I have a chance to fix the fan, as it seems to be a whole sensor module from the explosion chart.
Would appreciate any help. It’s a great device but the noise is terrible. Would be a shame if I had to throw it away.
Thanks,[br]
-Holger
+Holger
No idea how to open it, I don’t even see a way to open it:
[image|1976774]
[image|1976776]
(And FYI: I sent the Chinese manufacturer an email, but no answer)
+
+
+
+—-
+
+Update: removed back lid:
+
+[image|1977483]

dispositivo:

Cleargrass Air Quality Tester

Status:

open

Editado por: Holger Mayer ,

Título:

Terrible noise (fan). How to open and fix device?

Texto:

Hi there,
I bought a “Cleargrass” air quality tester from China:
[image|1976747]
Great device (while it worked), great build quality. See https://qingping.co/air-monitor/overview (Google translate helps with the Chinese) for more details.
A few days ago, it started to make terrible noise:[br]
+
[video|2086]
I guess it’s an internal fan. The device has a particulate matter air quality sensor. The way it works is: sucks in air and counts particles via laser reflection. So it definitely has a fan that’s also visible here in the explosion chart and video:
[image|1976757]
[br]
+
[video|2085]
The device looks really solid and has no visible screws.
Two questions:
# Any idea how I might be able to open it? [br]
Is it glued together? Would that mean: put a hair dryer at the back of the device and try to pull off the lid on the back (see explosion chart)
# If I can open it, do I have a chance to fix the fan, as it seems to be a whole sensor module from the explosion chart.
-
Would appreciate any help. It’s a great device but the noise is terrible. Would be a shame if I had to throw it away.
Thanks,[br]
+Holger
-Holger
+
+
+No idea how to open it, I don’t even see a way to open it:
+
+[image|1976774]
+
+[image|1976776]
(And FYI: I sent the Chinese manufacturer an email, but no answer)

dispositivo:

Cleargrass Air Quality Tester

Status:

open

Mensagem original de: Holger Mayer ,

Título:

Terrible noise (fan). How to open and fix device?

Texto:

Hi there,

I bought a “Cleargrass” air quality tester from China:

[image|1976747]

Great device (while it worked), great build quality. See https://qingping.co/air-monitor/overview  (Google translate helps with the Chinese) for more details.

A few days ago, it started to make terrible noise:[br]

[video|2086]

I guess it’s an internal fan. The device has a particulate matter air quality sensor. The way it works is: sucks in air and counts particles via laser reflection. So it definitely has a fan that’s also visible here in the explosion chart and video:

[image|1976757]

[br]

[video|2085]

The device looks really solid and has no visible screws.

Two questions:

# Any idea how I might be able to open it? [br]

Is it glued together? Would that mean: put a hair dryer at the back of the device and try to pull off the lid on the back (see explosion chart)

# If I can open it, do I have a chance to fix the fan, as it seems to be a whole sensor module from the explosion chart.

Would appreciate any help. It’s a great device but the noise is terrible. Would be a shame if I had to throw it away.

Thanks,[br]

Holger

(And FYI: I sent the Chinese manufacturer an email, but no answer)

dispositivo:

Cleargrass Air Quality Tester

Status:

open