Article reference KA-01674
Applicable to models: DESPH075E, DESPH125E, DESPH150E, DESPH200E, DESPH300E
Issue: Error 1 displayed on UI (User Interface)
What this means: Room Thermistor is open Circuit
Action:
In guarantee- Service visit required see below additional help link.
Out of Guarantee- Issue with the room thermistor, which should be checked and replaced as necessary. For DESPH075E/125E/150E/200E the part number will be 100000133, and if the DESPH300E, it will be X-03/23555/0.