SERVICE MANUALModel: WS49GDB12Issue2014-12-10Rev.FZ1412S025V34-3. Heatera. Firstly, pick out all wine supports. Then removeb. Pick out the middle separate structureFan baffle,loosen the Philip screws on the twosides of the middle separate structurec. thenopentheevaporatorfromleft to right ,the heater on the back ofthebox,then itcan be changed..