Light switch on Domestic Royale not working

I assume this is the interior refrigerator light? If the bulb is OK, I'd guess it's the door switch, which (at least on mine) eventually gets gunked up and/or corroded internally and stops working. It may be possible to disassemble the switch and clean it up and have it work, at least for awhile, or you can buy a replacement and install that. Lately I've just lived without the fridge light.