Do this AFTER trying the bulb AND fuse repairs first> VOILA!!!! Solid connected lights that can't be removed and the ones with two wires that can be replaced. Trouble-shooting these groupings by shorting out the connectors etc is not recommended, because those bulges on the string are configured for the number of lights in the string. This can be verified by by pulling out an LED (if removable) and seeing if a magnet sticks to the LED wire leads. Anyone interested in approaching media with me let me know. Put the lights up this year and so far the patched and mismatched strings with marette connectors and lights cut out are all working. LED string lights last a long time and will sometimes out last the fuse so checking to see if the LED light string fuse has failed can save your set of lights. OK. Bulbs have a 'positive and negative' side. still use steel:(... 4). I also bought a LED 'Tester' gun from Home Depot , so will head to garage with my box of 1/2 'workers' and 'have at it' yet again until fingers bleed from pulling asst'd. This makes it virtually impossible to get that one section of lights to work unless I decide to do the repair in the non-working environment . And i do have a multi meter with the positive and negative leads but where do i check (place them) to find out if the circuit is flowing freely. Don't buy the most expensive or the cheapest, buy somewhere in between. Is it where the plug is, or the little cylindrical thing near the plug? Metal connections made up of layers (Bi-Metal) will move with temperature changes. Nevertheless, LED lamps can also break down. Yes i have checked the two fuses and both are working, cause it's understandable that if the fuses were bad or not there then none of the lights would turn on when you plug it in. I'm having a similar issue that I'm not seeing stated exactly here. The total required amperage of the circuit actually lowers when you remove a light. In fact, if the voltage is too high (AC or DC) that space will be violated and the LED will literally "pop its top". best get all those lights working.. 11/01/2011 by In her words, "Good job Granpa." The soldering was typical awful Chinese soldering using lead free solder. Luckily got it working again since I felt like it would be forever until I was able to get my Christmas tree lights back up again. Forgive me but...I somehow feel like a genius right now :). Hi David. But everything seems like it's connected! Questions of a Do It Yourself nature should be If AC is applied (at suitably reduced voltage--which is obtained by connecting many in series) they only light up during half of the AC cycle. You can post now and register later. Not knowing what a piece of crap these Can Tire Noma LEDs are, I invested in a whole bunch of strands to wrap our 3 story evergreen. There are two leads. On that note, my string uses two 3 amp fuses in the plug which both test less than one ohm and there are three wires connected to the spades which are not keyed for hot and neutral. New ones are cheap, specially online. 2: on those circuit boards rests a rectifier (good- less flicker) and a capacitor ( further reduces flicker) which unfortunately causes major problems when trying to dim these strings. After year three the first third failed. smileycyrus. The major offender is moisture. Happy Holidays, from Phil in Kansas. I repeated the test to see if I got the same result and that is what happened. All information is provided "AS IS." Or UL n CSA. Power is received at BOTH ends , but no lights, or only half of either end . ), so corroded-off wire legs should be a thing of the past, even if the sockets are not sealed from rain. If the leads are rusty, the LED's will need to be replaced. Terms — Sat down in now warm garage, and 'had at it' ! These are not available in stores, and can only be purchased by a handful of select suppliers who work exclusively with professionals. Give it a try and thanks for the Christmas Spirit....Good luck. I hope this answer is helpful to someone. Just verified my above statement. I'm not going to the trouble this year since the lights are already on the house, but next year I'm just going to move string #2 to an end location of one of my light runs. oldturkey03. There is no stacking male plugs with these ones. 11/01/2011 by of other lights, e.g. To repair the light, First find a piece of stranded wire and strip off about 2 inches of insulation. What I, obviously, would like to see is these LED lights WORKING , CONSISTENTLY ! But in every case, the first step is to find where the problem is located. I expected it to last 8-10 years. Issues with Rope Lights. The so called dome lights (not sure whay they are called that. Yeah, that's what I do too now is just buy 25 light strings, but thanks for the NOMA 'tip' didn't know that ! I have a variation on the above problem - I have a (quite) new 200 string LED set, the first 40 are not quite out - they are on but very dim. Purchased the noma c9 lights rented a boom to install at the peak thinking they were reliable and could keep them up for years and sure enough 2-3 weeks in 2 strands dead (at the peak of course) and half strand dim almost dying. May cost a bit more, but cheaper than throwing out 6-8 strings EVERY year ! This feature was standard in thermostats, but may be a problem in your duplex. On the one hand, this can be due to the lamp itself. Also, if there is flat edge on the plastic case, that's adjacent to the cathode.