Honeywell CM67 relay switching noise

James_H · 21 Jan 2007

I have a CM67 that makes a loud 'tock' as the relay switches on or off. The similar unit at the Premier TravelInn I recently stayed at made a similar noise on switching but maybe a bit less echo.

Does the CM67RF or newer CM927 equivalent have silent operation at the user control since the relay switching would be in the base unit near the other heating controls?

Thanks.

Agile · 22 Jan 2007

As far as I am aware all similar units will have a magnetic latching relay and make a click as they switch.

Since this is only about 45 dBA at 1m then its pretty quiet and I wonder why it bothers you?

Tony

Slugbabydotcom · 22 Jan 2007

Does the CM67RF or newer CM927 equivalent have silent operation at the user control since the relay switching would be in the base unit near the other heating controls?

Answered your own question there m8.
If the relay switching is the base control then it wont operate in the user control because it isnt in there

weargas · 22 Jan 2007

I have the same problem. I've got 11 cm67's and the switching is noisy, especially at night.

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Honeywell CM67 relay switching noise

James_H

Agile

Slugbabydotcom

weargas

DIYnot Local

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