Dyson Advice > Looking after your Dyson

Motor.

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Dyson4u:
Are the motors with the internal thermal cutout good quality?

As I've used the MTR299 and the discontinued MTR240.

MVacs:
We prefer the ones like the 299 and 240 with the external one.

It all depends on who makes the others. A lot are no good.

Dyson4u:

--- Quote from: MVacs on September 14, 2023, 02:43:10 pm ---We prefer the ones like the 299 and 240 with the external one.

It all depends on who makes the others. A lot are no good.

--- End quote ---

Are the other motors that have the thermal cutout on the outside good?

MVacs:
Most regard them as better, yes.

Dyson originally designed them that way, and they designed stuff a certain way for a reason I suppose.

Internal TOC Con:

Heat transfer: May not respond as quickly to temperature changes within the motor, potentially leading to motor damage.

External TOC Pro:

Faster response: It's located externally, so it can quickly sense temperature changes in the motor and provide protection.
Ease of access: It's more accessible for testing, replacement, or resetting.

Dyson4u:

--- Quote from: MVacs on September 15, 2023, 10:04:37 am ---Most regard them as better, yes.

Dyson originally designed them that way, and they designed stuff a certain way for a reason I suppose.

Internal TOC Con:

Heat transfer: May not respond as quickly to temperature changes within the motor, potentially leading to motor damage.

External TOC Pro:

Faster response: It's located externally, so it can quickly sense temperature changes in the motor and provide protection.
Ease of access: It's more accessible for testing, replacement, or resetting.

--- End quote ---
Interesting info.

I have fitted some of those motors with internal thermal cutout and  haven't been a issue.

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