Boiler stopped working, the ground wire from the switch was disconnected and the plastic cover thing was burned to char..Good news the heater works fine when I connect the wire, bad news I don't know why the plastic cover burned in the first place and I don't want to die in an electrical fire..Could it it have been sparking because of a poor connection?
>>2990082Poor contact due to the connector becoming loose, or wire oxidation.Cut the section of the cable with damaged insulation and then connect it back, make sure to tighten the screw properly but don't break it.
>>2990083That wire on the other side of the connector going into the heater is toasted as well. Probably bad contact from a loose connection.
>>2990108This.It looks like that terminal block has a few spare spaces. Move connection to a new one.In fact, terminal block looks to be mainly empty. Maybe remove and replace with something more appropriately sized.
>>2990123i put the terminal block thing just to connect the wire from the switch to check that the heater element was workingbut yes, i'm retarded, i remembered i heard some buzzing sound the weeks before, which was obviously the sparking from the poor connectionso i guess i'll sand the charred crap from the metal plate and change the wire
>>2990151Use a pencil eraser or DeoxIT instead of sandpaper. Put a thin layer of dielectric grease on the spade disconnects to prevent oxidation and arcing.
>>2990151A wire that has gotten that hot has most likely been damaged, it will be brittle and prone to future failure. The safest bet is replacing the heating element since it's clear heat damage has occured to it(burnt connector area) and cut the wire a few inches back from the visible damage to ensure you get past the heat affected area.
