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  #1  
Old 08-27-2014, 01:40 PM
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Join Date: Feb 2001
Location: Midwest, USA
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Function of Elmwood Temp Sensor on Blower Motor Box W116 Bypassed?

I discovered a tiny temp sensor installed next to the ACC blower motor on my 1980 w116 450SEL that had been bypassed. I'm wondering what the function of it is and if I should try to replace it?

Marked: "Elmwood Sensors 2455R 10/6 AMP 250v
3455R95-54, etc. "

Please see photos to follow:

Function of Elmwood Temp Sensor on Blower Motor Box W116 Bypassed?-image.jpg

Photo is sideways


Last edited by '79 Super Turtle; 08-27-2014 at 02:03 PM.
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Old 08-27-2014, 01:49 PM
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More photos

Function of Elmwood Temp Sensor on Blower Motor Box W116 Bypassed?-image.jpg

Photo is sideways.

Last edited by '79 Super Turtle; 08-27-2014 at 02:01 PM.
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Old 08-27-2014, 01:52 PM
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Last photo

The other side:
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Function of Elmwood Temp Sensor on Blower Motor Box W116 Bypassed?-image.jpg  
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  #4  
Old 08-27-2014, 06:45 PM
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That is a "snap disc" bi metallic switch that turns on or off depending on temperature. I'm not sure what it is for either. Is the AC factory install or dealer AC?

The form factor of the switch is super common and still used today. In fact, the 2455R series comes up as a Honeywell part, see links below then look for your part #, it should be there somewhere.

2455R-100-89 HONEYWELL S&C Temperature Switches | 98K8376 | Newark element14

www.farnell.com/datasheets/93692.pdf

sensing.honeywell.com/product-page?pr_id=53358

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