3 x Dehumidifiers (Lymm)

All faulty but probably fixable.
One works for a bit and then trips the power in my house.
One just makes a smell, I think the motor or fan must be catching on something.
And one the display seems faulty and I can’t get it to switch on.
I bought them recently from an auction site and don’t have time to take them apart.

Fair Chance Policy: I’ll wait before choosing a recipient to give more people a chance to reply.