What matters is who sells it not who makes it.
Use Google to search for APM 6115 parts - you will find a company who sells spares (probably not fridge doors though) but they might know who you can go to...
The booklet you have is for three different models - it would be good to discover which specific one you have - it may be on a manufacturer's plate hidden away somewhere.
Good luck...
Peccavi, May 2009