Masterstat Wire burned in control box

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Old 05-29-18, 10:23 AM
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Masterstat Wire burned in control box

I have a Masterstat Model 110423-2 from lowes. Third year using this thermostat. I came home and only the pump was running. After some investigation, I found that the link wire was melted and had been getting hot for some time because the insulation was crumbling in my fingers. Anyone know why this would happen? Should I worry about replacing with the same thermostat will have a problem getting hot in the future? It is rated for a 1 HP pump. Anyone else's input would be greatly appreciated.
 
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Old 05-29-18, 03:48 PM
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Welcome to the forums.

I use those types of terminal strips in low voltage all the time with no problems.

When they are used for high voltage and a bit of a current draw it's extremely important that they are tightened fully. One of those screws came loose and created heat at that point.
 
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Old 05-29-18, 03:49 PM
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Thanks, I thought the same thing.
 
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