Inverter change over switch

[Don't know 55555]

Firstly I don't know much about inverters I have a 3kva pure sinewave inverter trolley with two gel 100ah batteries and it has a change over switch I have two leads on it and I run three fans on it a tv decoder and maybe a LCD light it has been working fine for a year it switched over during load shedding but lately when power comes back you can hear the switch change back over to Eskom power but my appliances does not come back on and I had to unplug the leads and put them back on normal power no inverter just stands there not being used. I thought it was the leads but they work fine on normal power. The inverter is 12v. Any suggestions

 

[TheChamp]

Is there a chance that someone could have fiddled with the settings?

 

[rh1]

Firstly I don't know much about inverters I have a 3kva pure sinewave inverter trolley with two gel 100ah batteries and it has a change over switch I have two leads on it and I run three fans on it a tv decoder and maybe a LCD light it has been working fine for a year it switched over during load shedding but lately when power comes back you can hear the switch change back over to Eskom power but my appliances does not come back on and I had to unplug the leads and put them back on normal power no inverter just stands there not being used. I thought it was the leads but they work fine on normal power. The inverter is 12v. Any suggestions

Is the change over switch separate from the inverter? Could the switch be faulty?

 

[Don't know 55555]

Am sure no one fiddled with it. The switch is seperate from inverter. The thing that bothers me is it's switches over smoothly at the start of load shedding no problem but when it ends you can hear it change over but everything stays off

 

[TheChamp]

Am sure no one fiddled with it. The switch is seperate from inverter. The thing that bothers me is it's switches over smoothly at the start of load shedding no problem but when it ends you can hear it change over but everything stays off

Post pictures.

What happens when there is no load when it switches back to mains?

 

[Don't know 55555]

Without a load it is still the same

 

[TheChamp]

A picture tells a thousand words they say.

It's most probably the changeover switch that's faulty, can you post a close up pic of the switch?

 

[Don't know 55555]

Hope it's what your looking for

 

[TheChamp]

Hope it's what your looking for

Yes, that's the one, the red dial is supposed to physically move when it changes to the alternate source, if it doesn't, that's your problem. Try setting it to manual and operate it like that, and then turn it back to auto, could be a stuck spring or something.