Symptom: You Are Feeling Too Cold (Hot) In Your Living Room; Symptom: The Water At The Tap Is Too Cold; Symptom: Heat Pump Failure - Daikin ETSH12P50EF User Reference Manual

8 | Troubleshooting

8.3 Symptom: You are feeling too cold (hot) in your living room

8.4 Symptom: The water at the tap is too cold

8.5 Symptom: Heat pump failure

User reference guide
58
Possible cause
The desired room temperature is too
low (high).
The desired room temperature cannot
be reached.
The weather-dependent curve is set
incorrectly.
Possible cause
You ran out of domestic hot water
because of unusually high consumption.
The desired storage tank temperature is
too low.
When the heat pump fails to operate, the backup heater or boiler can serve as an
emergency heater. It then takes over the heat load either automatically or by
manual interaction.
Corrective action
Increase (decrease) the desired room
temperature. See "5.6.4 To change the
desired room temperature" [
If the problem recurs daily, do one of
the following:
▪ Increase (decrease)
temperature preset
"5.8.1 Using preset values" [
▪ Adjust the room
schedule. See "5.8.2 Using and
programming schedules" [
"5.8.3 Schedule
4
Example" [ 37].
Increase the desired leaving water
temperature in accordance with the
heat emitter type. See
the desired leaving water
4
temperature" [ 29].
Adjust the weather-dependent curve.
See "5.9 Weather-dependent
4
curve" [ 43].
Corrective action
If you immediately need domestic hot
water, activate the tank Powerful
operation. However, this consumes
extra energy. See "5.7.5 Using DHW
4
powerful operation" [ 33].
If the problems recurs daily, do one of
the following:
▪ Adjust the storage tank temperature
schedule. See "5.8.2 Using and
programming schedules" [
"5.8.3 Schedule
4
Example" [ 37].
Daikin Altherma 3 H MT ECH₂O
4
29].
the room
value. See
4
34].
temperature
4
34] and
screen:
"5.6.5 To change
4
34] and
screen:
ETSH/X(B)12P30+50EF
4P663480-1A – 2022.07