Bosch · Alarm List A/W Split (8754) 2018 01 10
This warning is issued if the hot gas temperature (TR6) exceeds the maximum limit (90 or 115°C) for more than 60 seconds. It relates to excessively high suction gas overheating.
Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.
Compare the read value from sensor TR5 with an external thermometer.
Connect a manometer to the refrigerant circuit and measure the low pressure. Compare the evaporating temperature value from JR0 with the measured value.
Use a magnet to manually change the position of the electronic expansion valve (EEV) during operation to check if it's stuck.