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15
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Troubleshooting
Installer reference guide
235
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
4P620241-1 – 2020.06
DANGER: RISK OF BURNING/SCALDING
15.3 Solving problems based on symptoms
15.3.1 Symptom: The unit is NOT heating or cooling as expected
Possible causes
Corrective action
The temperature setting is NOT correct Check the temperature setting on the
remote controller. Refer to the
operation manual.
The water flow is too low
Check and make sure that:
▪
All shut-off valves of the water circuit
are completely open.
▪
The water filter is clean. Clean if
necessary.
▪
There is no air in the system. Purge air
if necessary. You can purge air
manually (see
224]) or use the
automatic air purge function (see
225]).
▪
The water pressure is >1 bar.
▪
The expansion vessel is NOT broken.
▪
The resistance in the water circuit is
NOT too high for the pump (see the
ESP curve).
If the problem persists after you have
conducted all of the above checks,
contact your dealer. In some cases, it is
normal that the unit decides to use a
low water flow.
The water volume in the installation is
too low
Make sure that the water volume in the
installation is above the minimum
required value (see
15.3.2 Symptom: Hot water does NOT reach the desired temperature
Possible causes
Corrective action
One of the tank temperature sensors is
broken.
See the service manual of the unit for
the corresponding corrective action.
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