Re the sticking relay on Siemens RCR10/433-GB: I found I had a 24V schrack relay fitted in the receiver, but only 12V is being applied when heat is required. The result was (after a year or more of working fine) that it sometimes worked and sometimes it didn’t quite pull over and needed a tap. I need to source a 12V relay with the same footprint.
Tim H.
September 2020
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