Royal Sovereign RSC-LS Series Service Manual page 6

6. Defective Transformer.
a) Replace the Transformer. Figure 3
2.3 Rollers Not Heating * Fit for LSH series only
CAUSES:
1. Heating wire is not connected to the main PCB.
2. Blown (burnt) upper and/or lower wire fuse (T/Fuse).
3. Defective Bi-Metal.
4. Defective heater.
5. Defective Main PCB.
MEASURE
1. Heating wire is not connected to the main PCB.
a. Connect the upper and lower heating wires to the main PCB.
Transformer
Figure 3
4