Asko TL751 - Error Mode Troubleshooting; Sensor, Heater, and Flame Detection Errors; Gas Valve and Igniter Errors

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2-6. Error Mode
1) H1 error - Humidity sensor error
1 This occurs when there is a short defect in the humidity sensor (the indicated value is lower than 24)
2 The unit buzzes, indicating the error, every 10 minutes for 10 seconds.
3 The error display goes off when the power is switched on/off.
2) H2 error - Drying temperature sensor open/short error
1 This occurs when there is a defect in the drying temp sensor or disconnection.
2 The unit buzzes, indicating the error, every 10 minutes for 10 seconds.
3 The error display goes off when the power is switched on/off.
3) H5 error - Heater overheated (ELECTRIC TYPE)
1 This occurs when the temp sensor indicates 85° or higher.
4) Heater disconnection check and H4/H6 error (ELECTRIC TYPE)
1 No error is indicated in case of actual consumer use, for this mode checks heater defects through
customer service.
2 The defect must be checked without any load.
3 How to enter the mode: Push the power button while Dry Beep and More buttons are pressed at the
same time.
4 Then, Heater 1, Heater 2, and the motor are turned on.
5 Check the temp initially and 2 minutes later. Measure the difference.
If the difference is 20°C or greater, “OK” is indicated.
If between 5°C~19°C, “H6” is displayed, indicating disconnection of one heater.
If 5°C or below, “H4” is displayed, indicating disconnection of two heaters.
5) H3 Error - Flame Detector Open Defect (Gas Type)
1 Prior to igniter operation, it is checked whether flame detector is attached. H3 error occurs when flame
detector is still open after 300 seconds.
6) H7 Error – Gas Valve Defect or Gas Blocked-off (Gas Type)
1 H7 error occurs if flame detector maintains short state when operating gas valve after normal
operation of flame detector and igniter (error displayed after 5 repetitions).
7) H8 Error – Igniter Defect or Flame Detector Short (Gas Type)
1 Flame detector must open within 120 seconds after igniter operation. H8 error occurs when the initial
state of short is maintained after the 120 seconds (error displayed after 5 repetitions).