replying to KT, JoAnn Smith wrote:
I have the same heating set up. Only every time mine turns on or off it thumps
or bangs or clunks. Like when a large breaker trips. Scares me half to death
every time it happens. Which is often this winter. Please someone help my
frazzled nerves.

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On Sun, 24 Feb 2019 03:44:04 GMT, JoAnn Smith
m wrote:

replying to KT, JoAnn Smith wrote:
I have the same heating set up. Only every time mine turns on or off it thumps
or bangs or clunks. Like when a large breaker trips. Scares me half to death
every time it happens. Which is often this winter. Please someone help my
frazzled nerves.
Replace your magnetic contactor with a solid state relay - or
possibly rubber mount the magnetic contactor in a soundproof box.
Those beggars are NOISY.

14 year old thread, pretty sure the house burned down by now.