I have sharp 5316 it's giving error 4h

Heater lamp&fuse ( broken heater)
RESET:clear -interrupt -0-interrupt
and 14 start-15 start
try the simulation about 5 times if not. u have to check fusing unit. so disconnect the two cables, turn it off then disconnect the power reconnect the cables put the power then on. so u have to do the simulation respectively..

4 00 Content Heat roller low temperature detection
Detail When the fusing temperature is lower than
150C° after 55sec from the start of warming
up.
When the warming up complete temperature is
not reached in 30sec from reaching 150C°.
When the fusing temperature is lower than
100C° after 20sec from ready start.
When the fusing temperature is lower than
145C° when printing."
Cause Thermistor abnormality
Heater lamp abnormality
Thermostat abnormality
Control PWB abnormality
Check
and
remedy
Use SIM 5-02 to check the heater lamp blinking
operation.
When the lamp blinks normally.
Check the thermistor and its harness.
Check the thermistor input circuit on the control
PWB.
When the lamp does not light up.
Check for disconnection of the heater lamp and
the thermostat. Check the interlock switch.
Check the power PWB and the lamp control
circuit on the MCU PWB.
Use SIM 14 to clear the self diagnostic display.