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Diceman 01-14-2009, 07:00 PM my GFCI tripped sometime in the last week or so from my block heater extension. is there any foolproof way to prevent this from happening? i have started attaching the extension to the block heater inside the grill so hopefully it wont get wet. the circuit is on a timer so it doesnt come on until 4:30am and it shuts off before i unplug the extension. anything else i can do? i have no choice but to use a GFCI outlet since the whole garage is wired this way. jdugie123 01-14-2009, 07:46 PM how old is the plug and are you connecting it to the actual GFCI or is it a plug jumped off it also do you have anything else plugged into it Cavalry Hotshot 01-14-2009, 07:56 PM Mine was tripping too, but I narrowed it down to the extension cord. I got a heavier cord and all is well. just my .02 DnHolland 01-14-2009, 09:19 PM X2 on the good extension cord. Also, try it without the timer and see what happens. tytan 01-15-2009, 12:44 AM Some old GFCI breakers will trip for no reason. If it's a newer installation then the GFCI is doing it's job. If you're using an extention cord nine times out of ten it's the cord that's the problem. Diceman 01-15-2009, 08:59 AM how old is the plug and are you connecting it to the actual GFCI or is it a plug jumped off it also do you have anything else plugged into it i'd say the wiring in the garage is at least a few years old. i've been there around 5 but i had the wiring gone over since the house was not grounded correctly so i would assume that it was at least "refreshed" as needed when i bought the property. it is a plug that is jumped off of a GFCI plug. i have a couple battery tenders plugged in but they have been plugged in for years with no problems. Mine was tripping too, but I narrowed it down to the extension cord. I got a heavier cord and all is well. just my .02 the extension cord i have is fairly heavy duty and rated for outdoor use. it is not a $2 cord by any means. Some old GFCI breakers will trip for no reason. If it's a newer installation then the GFCI is doing it's job. If you're using an extention cord nine times out of ten it's the cord that's the problem. i have to use an extension cord so there will be no way around it. last night it ran for 3 hours and then turned off like it should on the timer, it didnt trip. im guessing it is working as advertised and some water or something got in there and caused it to trip randomly.will just have to keep a closer eye on it i suppose, kinda sucky when it is -5 outside. | ||