Thermal Reset Switch for Grainfather S40 S40³ Series Boilers KSD-301-CR Temperature Limiter 170C Breaker EZZZ9136

Description

• Replacement push button thermal cutoff switch for the Grainfather S40 Series boilers
• The most common point of failure on electric boilers
• When the temp of your boiler bottom hits 170C a functional switch will blow and your boil is done
• The unit won’t heat until it cools off a little and the reset on this switch is pushed.
• Genuine Grainfather part KSD-301-CR from BSG EZZZ9136

From Hobby Homebrew:  There may also be a fuse to check continuity on.  It looks like a thick place on the wire.

From Brewnosers:  Grainfather stopped working, and we figured out that it was a problem with the thermal switch (which is there to prevent you from running it without any liquid).  So we took out the switch and connected the wires with electrical tape, which solved the problem for a few brews – but then it stopped working again…  (Not recommended, get the switch!)

From Homebrewtalk:  The pusher can melt also, causing it not to reset when you push it.  When reset button trips it is not so easy lifting it up to reset.  I cut a hole in bottom of table which makes it much easier to reset.