Question about DeLonghi EW0507 Oil Filled Radiator Heater

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Burnt plug my delonghi's plugin sparked and melted the end of the plug causing my socket to not work and lots of smoke. was wondering if there was any recalls on this oil filled radiator heater.

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Re: burnt plug

I will check, meanwhile go to the hardware store and get a replacement plug for it. the cord has a ribbed conductor and a smooth conductor. the ribbed conductor goes on the brass screw on the replacement plug. the smooth one goes on the other.

Posted on Aug 29, 2007

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Melted the recepticle and blew the fuse.

There is either a severe problem with this heater, or the circuit it is connected to is too small.

Generally, a heater will draw the most power in the first couple of minutes that it is on (going from room temperature to hot), and if the circuit is under sized, the circuit breaker will operate or fuse will open. Since the the receptacle / plug melted and the fuse opened, it suggests to me that the receptacle itself is "worn out". This can happen over the years of plugging and unplugging cords to it. The springy metal connections inside the receptacle have become fatigued and no longer squeeze the blades of the plug hard enough for a good connection. This results in heat at the connection point inside the receptacle.

Since the receptacle is melted, it should be replaced with a new one. The circuit should be protected with the appropriate size fuse. A circuit fed with #14 copper wire should have a fuse no larger than 15 amps; and a circuit fed with #12 copper wire should have a fuse no larger than 20 amps. Ever. The same applies for circuit breaker amp ratings.

Even if the plug on the end of the power cord of the heater hasn't melted or doesn't appear damaged, it should also be changed, as the excessive heat has changed the metal's conductive properties. The two blade plugs are polarized with one blade slightly wired than the other. You should make every effort to ensure the right wire is connected to the correct blade on the plug.

If you have any reservations about doing this work or if it happens again, you should contact a qualified electrician for professional analysis. I hope this helped and good luck!

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