Technical Information
56
T 980x/T 982x
Cause:
Open circuit at heater bank NTC (below 68°F); evaluation only after the
heater has been running for at least 1 minute.
Remedy:
Check the wires and connectors of heater bank NTC 2R30 for a short or open
circuit.
For heater bank NTC resistance values, refer to Table 030-3.
Cause:
Heater bank is not heating. Without heat, the sensor is below the measuring
threshold of 68°F (electric dryers only).
Remedy:
Check the heater bank (R1) for a short or open circuit.
Cause:
Heater relay (K1/1) (electric dryers only).
Remedy:
Check the heater relay (K1/1).
Cause:
Temperature limiter with manual reset (F1) has tripped (electric dryers only).
Remedy:
Reset the temperature limiter.
Find and rectify the cause for the temperature limiter tripping.
Cause:
Gas burner not heating (gas dryers only).
Remedy:
Check the gas burner; refer to Section 031-4.1.
3.10 F3: Drying Air NTC (1R30) Short Circuit
Symptom:
Program stop, cooling phase, intermittent buzzer tone.
Only the timed program “cold air” still works.
The “Hand iron” LED flashes.
The “Check Filter/Vent” LED flashes.
Opening and closing the door deletes this fault indication.
Cause:
Short circuit (above 320°F) in drying air NTC 1R30.
Remedy:
Check the wires and connectors of drying air NTC 1R30 for a short or open circuit.
For drying air NTC resistance values, refer to Table 030-3.
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