Hi Shirley,
I'm afraid I can't help you directly, I just have a suggestion.
I think you might solve the problem quicker if you can find someone near you who can get their hands on the heater and check out what's wrong and what's involved with fixing it.
You might be lucky asking online, and get an answer from someone who is familiar with the model, telling you how to fix it, but if you aren't experienced with mechanical and electrical work, you probably shouldn't do it yourself anyway, because with appliances, especially heaters, you need experience to avoid compromising safety.
Kris Heidenstrom - kris at heidenstrom dot gen dot nz, May 2010