Series light stopped working? Try these six things first

Before you throw a string away or raise a replacement, work through these in order. In our experience roughly half of all reported faults are fixed in the first three steps, and none of them require any tools beyond a screwdriver.

1. Test the socket, not the light

Plug something you know works into the same socket. Extension boards fail far more often than lighting strings, and a tripped MCB or a dead board looks exactly like a dead strand from a distance.

2. Check the fuse inside the plug

Many decorative strings hide a small glass fuse inside the plug body, behind a sliding cover or a single screw. It is designed to blow first and protect the string. Replacements cost a few rupees. A blown fuse is the single most common fault on an otherwise healthy light.

3. Reseat every connector

Where the controller joins the string, and where the string joins the plug lead, there is usually a push-fit connector. These vibrate loose, especially outdoors. Unplug from the mains first, then push each connector firmly home.

4. Half the string is dead

This almost always means one failed LED in a series section. Older strings wire LEDs in series. One open-circuit LED kills everything after it. Look along the dead section for a bulb that is visibly darker, blackened or loose in its holder. On strings with replaceable bulbs, swapping that one bulb often revives the whole run.

5. It flickers or the modes have stopped

Flickering usually means a failing controller rather than failing LEDs. If the string works on steady mode but not on chase patterns, the controller is the fault and the LEDs are fine. On strips and RGB runs the controller is a cheap, separately replaceable part, which is why we stock them.

6. It worked, then died after rain

Stop using it and unplug it. Water inside an indoor-rated string is a genuine electrical hazard, not an inconvenience. Do not dry it out and put it back up on the same run, move to an IP65 product for that position.

When to stop trying

If the wire insulation is cracked, if there is any browning or melting around the controller, or if the MCB trips when you plug it in, the string is finished. Dispose of it and replace it. No decorative light is worth a fire.