Simpson Cascade Dishwasher Dual Tank Thermostat - Part # DWS028, 0541400014Simpson Cascade Dishwasher Dual Tank Thermostat. Part. no. DWS028. Replaces Part Nos. 0541400001, 0541400014. Dual thermal cutout 50degC normally open and 85degC normally closed contacts. This part has white and purple dots next to the terminals. 4 x 6. 4mm spade terminals. It is often responsible for no heat symptoms. Fits many early Simpson Cascade & Super Cascade dishwashers. Easy to fit. Fully guaranteed. This part is no longer available from the