A physical click sound is heard inside the unit when the power is turned on. This sound is like kind of relay switch I can usually hear in home wireless power controllers. is this normal?
Yes, that’s normal. Just the relays powering up.
A physical click sound is heard inside the unit when the power is turned on. This sound is like kind of relay switch I can usually hear in home wireless power controllers. is this normal?
Yes, that’s normal. Just the relays powering up.