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T 980x/T 982x
2.3
Heater Control
Safety function:
If the drying air NTC (1R30) is defective, then the heater will not be switched on.
The heater is switched off as soon as the heater relay has been running for
more than 5 seconds without the motor relay being activated as well.
Heater reactivation is delayed by 10 seconds; the auxiliary heater is switched off
before, during and after a reversing pause.
2.4
Temperature Limiter with Manual Reset (1F1, 2F1, 3F1)
Three closed 3/4-inch temperature limiters, with manual reset via pushbutton,
are on the heater bank (T 980x only).
2.5
Drying Air NTC (1R30)
If the drying air NTC detects temperatures lower than 5°F (-15°C) or higher
than 320°F (160°C), then this NTC is defective.
2.6
Heater Bank NTC (2R30)
An open circuit in the heater bank NTC can only be detected at temperatures
higher than 57°F (14°C). Since lower temperatures can exist during dryer
operation, sensor readings will be evaluated only after the heater has been
running for at least 1 minute.
Note: If the heater is defective, fault F4 (heater bank NTC) is issued.
If the heater bank NTC has a short circuit (corresponding to 482°F), the
heater will be switched off immediately.
2.7
Interior Drum Light (H3/6)
Time controlled: 1 second after the door is opened.
Shutoff delay: 5 minutes.
The light is always switched off when the door is closed.
3
Fault Repair
3.1
Temperature Limiter with Manual Reset (F1) Has Tripped
Symptom:
The temperature limiter has tripped repeatedly.
Cause:
Clogged lint screen.
Remedy:
Clean the lint screen.
23
Technical Information
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