Emergency Operation - Daikin Altherma 3 H HT ECH2 O Referenzhandbuch Für Den Monteur

7 Faults and malfunctions
Error Code Component/Designation Error
number
9083 L3-00 Switch box temperature
(outdoor unit) is too high.
9084 L4-00 Radiation lamella sensor
measures too high a tem-
perature.
9085 J6-33 Water inlet (indoor unit)
and outlet (outdoor unit)
sensors both out of range.
Tab. 7-2 Error codes
INFORMATION
Observe maximum temperature sensor tightening torque
(see Chap. 9.2).
7.4

Emergency operation

If the heat pump fails, the backup heater or another external heat
generator can be used as an emergency heater. If [Emergency] is
set to "Yes", emergency operation is automatically activated in the
event of an error. Otherwise, emergency operation can only be star-
ted in the event of an error via the error screen (see enclosed oper-
ating instructions for the controller).
Installer reference guide
48
Possible error rectification
OU: Electrical box temper- Contact service partner
ature rise problem
OU: Malfunction of in- Contact service partner
verter radiating fin temper-
ature rise
▪ Check sensor and plug connections.
Sensor communication er-
ror
▪ If necessary, contact service partner
Daikin Altherma ETS(X/H)(B)-D
Heat pump (indoor unit) with integrated heat accumulator
008.1447299_00 – 06/2019 – EN