Help 3155 box got wet

[Antman]

Hello all my 3155 ATO controller got wet and now its making an high pitch alarm sound
The power supply port has green oxidation inside of it the rest of the circuit board looks fine
What can be done to clean this and have it working properly again ?
Thanks

 

[rvitko]

If the damage is minor and only in the power connector area it may be repairable, but if there is more extensive damage, the only way to repair it would be to replace it. I would first open the controller and check out the extent of the damage, posting a photo would give me a good idea of if it can be repaired.