Hi Andy, 

we got the heating element directly from Kanthal we payed  around 400 $, its not to difficult to replace it.

http://www.kanthal.com/products/furnace-products-and-heating-systems/electric-heating-elements/silicon-carbide-heating-elements/

we got a GLOBAR heating element 510880,  SRO-1-29-150-300-25-2.5-2020. 

Good luck
Stefano




On 22.06.2011, at 20:15, A. Schauer wrote:

> Hi all,
> 
> Our TCEA on our MAT253 stopped heating. We can sadly watch a reasonable, decreasing, temperature displayed on the controller. The thermocouple has a resistance, when unplugged, of 0.7 ohms. The heating element has a resistance, when unplugged, of 300 ohms. The manual seems to indicate that a new element will have a resistance of 5 ohms and an older one 9 ohms.
> 
> 1) Am I interpreting things correctly when I think the element is dead? If so, any chance I can order just the element? I see a smattering of old posts indicating folks have done this but no details are specified. Does Thermo sell just the heating element? If not, what alternative company have you had success with?
> 
> 2) I see the part number for the entire oven assembly is EX1121200 and has a cost of $8212 with 35% back if exchanged. Does anyone know of any alternatives?
> 
> Thank you.
> 
> andy
> 
> 
> Andrew Schauer
> Earth and Space Sciences
> University of Washington
> Seattle, WA 98195
> 
> 206.543.6327
> [log in to unmask]
> http://depts.washington.edu/isolab/
> 
> This message was sent from my telegraph.