u/Firm_Number3328

Hello you wonderful electricians,

I just had a heatpump installed (Daikin ftxv20uvma) which, EVEN WHEN TURNED OFF ALL DAY, makes a single loud 'click' once every hour, most likely I'm guessing a relay in the unit. I believe it's doing an hourly self-maintenance kind of thing. It doesn't do this if the external unit is switched off. And it's the exact same sort of noise my ceiling fan vent, or microwave, make when they are switched off.

This heatpump is in a bedroom, so it's very disruptive to sleep. Sadly there is no setting to turn this off; it's an in-built feature causing it to do this. It's maddening that it happens even with the unit off and not using it.

Is there any possibility of getting an electrician to replace the relay with something that doesn't CLICK, or perhaps dampen it?

As per the title - we just got a daikin heatpump installed, only used it for less than 5 minutes during the installation test. Haven't had it on since then. But i've noticed that it's making a 'click' noise every hour at 0:50? Sounds like it could be electrical or something, I don't know.

This seems very weird to me, and honestly it's noisy and frustrating.

Does anyone know what this is? Could it be the little wifi unit they installed into it?