Heat bed

Gentlemen;
I have been very impressed with the Robo 3D printer and have made 20- 30 items with very good
quality and definition. How ever I now have the problem with the heat bed heater cutting out after 5-8 mins of printing. I have read the forums concerning the over heat and the opening of the polyfuse and they discribe my problem to a tee. I am not able to hack in a solid state relay nor do i wish to attack the control card with a soldering iron to install a over rated polyfuse. I however am in need of resolving this problem with my Robo 3D printer.

Please inform me as to the proper course of action on my part!

Thank You in Advance
James Smith
jsmith 2024@yahoo.com