Panel humming

[Neil a]

Got up this morning and the alarm panel is humming pretty loud should I disconnect from power? It’s a diy install and secondhand panel been in for couple of weeks been ok until today .

 

[Handymanjo]

Loose transformer
Faulty transformer
Possible faulty battery
Check mounting bolts/ connections on transformer
What is the control panel

 

[Neil a]

The panel is galaxy 2-12 I’ve just taken lid off panel and removed battery
Put lid back still buzzing
Reconnect batt
Taking off lid can’t hear it but putting back on can (when I put ear on panel )

I’ve also just powered up my old panel which is a galaxy (this one does same when I put ear to panel )

 

[Handymanjo]

Metal control panels do sometimes buzz /humm with transformers.

 

[Neil a]

Thanks cos never heard it before today panel over top front door so when I came down heard it straight away .

 

[The Pars]

It will normally be a loose/faulty transformer.

 

[sparkymarka]

Or uneven wall / loose fixing

 

[Neil a]

No humming today so think something must have come loose .