Technical Information
51
T 80xx
3.6 F0 - No Fault
Cause:
No faults are saved in the fault memory.
Remedy:
No steps necessary.
3.7 F1 - Short Circuit in Heater Bank NTC (2R30)
Symptom:
“Rotary Iron” LED flashes.
Program stop.
Cooldown.
Buzzer intermittently for 2 minutes.
Only the “Cold air” program works.
Cause:
Short circuit in heater bank NTC (2R30). Short circuit: Heater bank NTC
resistance > 480°F (250°C); refer to Table 030-3.
Remedy:
1. Check the wiring harness of the heater bank NTC for a short circuit.
2. For the heater bank NTC characteristic curve setting, refer to Table 030-
3.
Note:
To delete this fault indication, disconnect the dryer from power.
3.8 F2 - Open Circuit in Heater Bank NTC (2R30)
Symptom:
“Rotary Iron” LED flashes.
Program stop.
Cooldown.
Buzzer intermittently for 2 minutes.
Only the “Cold air” program works.
Cause:
Open circuit in heater bank NTC (2R30). Open circuit: Heater bank NTC
resistance (2R30) < 68°F (20°C); refer to Table 030-3.
Evaluation is carried out only after the heater has been switched on for
1 minute.
Remedy:
Check the wiring harness of the heater bank NTC for an open circuit.
For the heater bank NTC characteristic curve setting, refer to Table 030-3.
Cause:
Heater bank is not heating. Unheated, the sensor value is outside the
measuring range of 68°F (20°C).
Remedy:
Check the heater bank (R1, R2) for a short or an open circuit.