Troubleshooting; To Display The Help Text In Case Of A Malfunction; To Check The Malfunction History; Symptom: You Are Feeling Too Cold (Hot) In Your Living Room - Daikin Altherma 3 H HT F+W Betriebsanleitung

7

Troubleshooting

Contact
For the symptoms listed below, you can try to solve the problem
yourself. For any other problem, contact your installer. You can find
the contact/helpdesk number via the user interface.
1 Go to [8.3]: Information > Dealer information.
7.1 To display the help text in case of a
malfunction
In case of a malfunction, the following will appear on the home
screen depending on the severity:
▪ : Error
▪ : Malfunction
You can get a short and a long description of the malfunction as
follows:
1 Press the left dial to open the main menu and go to
Malfunctioning.
Result: A short description of the error and the error
code is displayed on the screen.
2 Press in the error screen.
Result: A long description of the error is displayed
on the screen.
7.2

To check the malfunction history

Conditions: The user permission level is set to advanced end user.
1 Go to [8.2]: Information > Malfunction history.
You see a list of the most recent malfunctions.
7.3 Symptom: You are feeling too cold
(hot) in your living room
Possible cause
The desired room temperature is
too low (high).
The desired room temperature
cannot be reached.
The weather-dependent curve is
set incorrectly.
ETVH/X16S18+23DA6V+9W(G) + ETBH/X16DF6V+9W
Daikin Altherma 3 H HT F+W
4P586455-1C – 2020.10
Corrective action
Increase (decrease) the desired
room temperature. See "To
change the desired room
temperature" [ 4 12].
If the problem recurs daily, do
one of the following:
▪ Increase (decrease) the room
temperature preset value. See
the user reference guide.
▪ Adjust the room temperature
schedule. See "4.8 Schedule
Example" [ 4 14].
screen:
Increase the desired leaving
water temperature in accordance
with the heat emitter type. See
"To change the desired leaving
temperature" [ 4 13].
water
Adjust the weather-dependent
curve. See "4.9 Weather-
curve" [ 4 16].
dependent
7.4 Symptom: The water at the tap is
too cold
Possible cause
You ran out of domestic hot
water because of unusual high
consumption.
The desired DHW tank
temperature is too low.
7.5

Symptom: Heat pump failure

When the heat pump fails to operate, the backup heater and/or
booster heater can serve as an emergency heater. It then takes over
the heat load either automatically or by manual interaction.
▪ When Emergency is set to Automatic and a heat pump failure
occurs:
▪ For ETVH/X: The backup heater automatically takes over the
domestic hot water production and space heating.
▪ For ETBH/X: The backup heater automatically takes over the
heat load, and the booster heater in the optional tank takes over
the domestic hot water production.
▪ When Emergency is set to Manual and a heat pump failure
occurs, the domestic hot water heating and space heating stops.
To manually recover it via the user interface, go to the
Malfunctioning main menu screen and confirm whether the
backup heater and/or booster heater can take over the heat load
or not.
▪ Alternatively, when Emergency is set to:
▪ auto SH reduced/DHW
domestic hot water is still available.
▪ auto SH reduced/DHW off, space heating is reduced and
domestic hot water is NOT available.
▪ auto SH normal/DHW
normally but domestic hot water is NOT available.
Similarly as in Manual mode, the unit can take the full load with
the backup heater and/or booster heater if the user activates this
via the Malfunctioning main menu screen.
When the heat pump fails,
interface.
Possible cause
Heat pump is damaged.
INFORMATION
When the backup heater or booster heater takes over the
heat load, electricity consumption will be considerably
higher.
7 Troubleshooting
Corrective action
If you immediately need domestic
hot water, activate the DHW tank
Powerful operation. However,
this consumes extra energy. See
"Using DHW powerful
operation" [ 4 14].
If the problems recurs daily, do
one of the following:
▪ Increase the DHW tank
temperature preset value. See
the user reference guide.
▪ Adjust the DHW tank
temperature schedule.
Example: Program
additionally heat up
DHW tank to a preset value
(Eco setpoint = lower tank
temperature) during the day.
See "4.8 Schedule screen:
Example" [ 4 14].
on, space heating is reduced but
off, space heating operates as
or will appear on the user
Corrective action
See "7.1 To display the help text
malfunction" [ 4 19].
in case of a
Operation manual
to
the
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