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MAIN DRYER
12:1 O.H. THERMOSTAT - INLET AIR
This error code is shown if the input O.H. INLET AIR is deactivated.
Normally this is due to that protection thermostat for inlet air has trigged due to overheating.
The overheating thermostat for inlet air needs to be mechanically restored.
Cut power and turn off gas supply (if gas heated) and check contactors/heat relays before restoring the thermostat.
When the overheating thermostat for inlet air has been restored and the machine is powered up again, the error code
is cleared automatically.
The error code can be trigged if:
• The inlet air sensor has stopped operating correctly.
• The fan has stopped operating.
• The airflow is obstructed, by lint, overload, etc.
• The contactor or heat relay has got welded.
If the overheating thermostat for inlet air is not trigged, but there still is an error code:
• Check the harness, connectors and functions by reading the electrical schematic and by using the SHOW INPUTS
menu when the machine is in service mode.
12:2 O.H. THERMOSTAT - OUTLET AIR
This error code is shown if the input O.H. OUTLET AIR is deactivated.
Normally this is due to that protection thermostat for outlet air has trigged due to overheating.
The overheating thermostat for outlet air needs to be mechanically restored.
Cut power and turn off gas supply (if gas heated) and check contactors/heat relays before restoring the thermostat.
When the overheating thermostat for outlet air has been restored and the machine is powered up again, the error
code is cleared automatically.
The error code can be trigged if:
• The outlet air sensor has stopped operating correctly.
• The contactor or heat relay has got welded.
If the overheating thermostat for outlet air is not trigged, but there is still an error code:
• Check the harness, connectors and functions by reading the electrical schematic and by using the SHOW INPUTS
menu when the machine is in service mode.
12:3 INLET AIR SENSOR - OPEN
The error code is shown if the analog input INLET AIR TEMP. (PT100) is reading a resistance of more than approxi-
mately 185 Ω. Probably caused by broken PT100 sensor or wiring.
If the inlet air temperature in the SHOW INPUTS menu show a temperature of 222 °C the inlet air sensor is considered
open.
When the inlet air sensor is restored the error code is automatically reset and the ongoing program will continue.
A long press on the control knob/start button will make the control system reset and ongoing program will be ended.
The error code can be trigged if:
• The sensor, harness or connector is broken. The sensor shall measure around 110 Ohm in room temperature,
see table. (Measure direct over the sensor connectors).
If the measure of inlet air sensor is OK, but there is still an error code:
• Check the harness, connectors and functions by reading the electrical schematic and by using the SHOW INPUTS
menu when the machine is in service mode.
Temp - Sensor resistance
0°C / 32°F - 100 Ω
20°C / 68°F - 107 Ω
30°C / 86°F - 112 Ω
200°C / 392°F - 176 Ω
Service Manual
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