Royal Sovereign RSL-2701 - Manual (Page 7)

5. The heater in the roller is defective.
1) Test if the heater is disconnected with Multi-tester.
2) If disconnected, replace it with new one.
Replace Main PCB with new one according to How to replace Main PCB
only when all of the above mentioned heater wire, wire thermal fuse,
heater and Bi-metal are normal.
2.2 Rollers Not Heating
1. The Temperature Sensor is not work.
2. The wire thermal fuse is defective.
3. The heater in the roller is defective.
4. Main PCB is defective.
Before trouble shooting, be sure to disassemble
the Right cover , the Left cover and the Frame
Rear.
Refer to how to replace each component for the
disassembly of them.
MEASURES
CAUSES
6
6. Main PCB is defective.