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How to repair the steam iron failure

Update:03-08-2020
Summary:1. The fuse is blown when power is turned on Short circuit at the power plug wiring. Turn on the power plug and perform ...

1. The fuse is blown when power is turned on

Short circuit at the power plug wiring. Turn on the power plug and perform welding again.

The plastic socket of the iron cord is charred and carbonized. Check if the socket has burn marks and burnt smell, if it is severely carbonized, replace with a new socket

The iron core or two conductive sheets are short-circuited. Test the resistance value of the electric iron. If there is a local short circuit, conduct insulation treatment. If the short circuit is severe, replace the conductive sheet.
2. It is hot and not hot

The power plug is in poor contact. Reinsert the plug firmly.

The electric iron socket is in poor contact with the electric iron core conductive sheet. Remove the shell and check the fixing screws of the conductive sheet of the iron core.

The copper pin on the iron is loose or severely oxidized. Remove the shell to check the fixing screws of the copper pin, and rub the oxide on the copper pin with sandpaper. The elastic conductive jack on the iron cord socket loses its elasticity. Replace the electric iron cord socket.
3. Leakage

The conductive sheet or wire collides with the housing or bottom plate. First remove the shell and carefully check whether the conductive sheet of the iron core is in contact with the shell. At the same time, use a multimeter to test the insulation resistance between the copper pin and the shell. The value should be above 500M E2. If the resistance is very small, then unscrew it. Press plate screw, check whether the mica plate is broken at the two rivets of the iron core, and take corresponding measures to repair

The mica insulation layer is damaged. Use mica sheets to cushion the damaged area.

The heating wire is in contact with the bottom plate or the pressure plate. Re-tighten the fixing screws of the pressure plate, pay attention to whether the pressure plate is smooth, if there is a protruding part, file it first before installing
4. The indicator light does not light up after power on, and the bottom plate is not hot

The power plug is in poor contact. Check the power plug and rewire.

The heating core is damaged. Disassemble the electric iron and replace the electric heating core.
5. The indicator light is on, but the bottom plate is not hot

The lead wire of the electric heating tube is open. Re-welding the lead of the electric heating tube

The heating tube is damaged. Replace electric heating tube