If you know that the GFCI is good, then the heater that you are plugging could have a "hot to frame" ground fault condition. This means that the ground prong on the plug is carrying some current as well as (or instead of) the neutral. A GFCI measures the current coming in from the hot and compares it to the current going out on the neutral. If they differ from each other, the GFCI will trip.
In your case the heater could probably have a "hot to frame" short - also known as a ground fault - and some of the current is going onto the ground wire. Either find the fault by taking the heater apart, or buy a new one and toss the faulty one before it causes a serious problem.
As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.
Before you do any work yourself,
on electrical circuits, equipment or appliances,
always use a test meter to ensure the circuit is, in fact, de-energized.
IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS
WORK SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
Try Ebay.com or one of several online antique outlets such as tias
The Upstairs Room was written by Johanna Reiss, and the story takes place during the Holocaust. The book has several themes such as courage, compassion, prejudice, and tolerance.
Ellen Matheson is the model in the Premium Outlets ads. There are several other ads she has appeared in during the past few years.
Several outlets have this machine for about $500.
Someone can find information about Oxygen from several outlets. Some of those outlets include the internet, books, encyclopedias, journals, scientific magazine articles to name a few.
HD, or High Definition, video cameras can be purchased from several different outlets. Retail outlets such as Best Buy, Circuit City, and Radio Shack offer these items for sale.
Wallets sold under the brand name of Louis Vuitton can be purchased from several retail outlets in Houston, Texas. Retail outlets such as the Galleria sell these items to consumers.
Norelco makes several different kinds of electric razors that are cordless and rechargeable.
You can buy a motorized wheelchair at several locations. These locations include Walmart, Target, and Craigslist. You are not limited to these locations and you can search several outlets for a motorized wheelchair.
One is able to ride in an electric car at several different locations and for several different reasons such as when one visits a car company and goes for a test drive.
GE and Hotpoint brands come in electric, and there are several private-label brands as well.
Several electric cars have been powered primarily by solar. A good example is the Sunswift eVe.
Yes, several chemical reactions are affected by magnetic or electric fields.
It depends on the way your house or business is wired. Usually not. Usually a circuit feeds several lights or outlets.
Yes, they are available at walmart, best buy, and several other retail outlets as well as gaming stores.
I have done it several times, but for not more than 5 miles, and waited 2 hours at least prior to plugging in. I do not suggest this mode of transport.
There have been several BBC mini series about English families. They include:The Forsythe SagaUpstairs/Downstairs
GE stands for General Electric, a manufacturer who makes several different appliances, both large to small.
An electric fan is made of several parts including the electric motor, fan blades, and power supply. They are commonly used in many applications due to their versatility.
There were several companys that produced electric cars in the late 1890's, Baker, Columbia, Riker to name a few.
There are several different electrical supplies that can be used by a handyman. These can include an electric drill to an electric saw.
There are several: Solid Body Guitars (Electric) Semi-hollow Body Guitars (Electric) Hollow Body Guitars (Electric) Steel Guitars Lap Steel Guitars Acoustic Guitars (Electric Optional) Travel Guitars
There are several such as Tungsten a metal used in electric bulbs.