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homematic IP HmIP-eTRV-2 Radiator Thermostat Instruction Manual
Troubleshooting
• Insert two new 1.5 V LR6/Mignon/
AA batteries into the battery com-
partment, making sure that you
insert them the right way round as
shown.
Caution! Avoid contact with the
skin and eyes when handling leak-
ing batteries. Wear suitable pro-
tective gloves when removing
leaking batteries and residues
from a device. Rinse with plenty of
water in case of contact with the
skin.
9 Troubleshooting
9.1 Weak batteries
Provided that the voltage value permits
it, the radiator thermostat will remain
ready for operation even if the battery
voltage is low. Depending on the par-
ticular load, it may be possible to send
transmissions again repeatedly once
the batteries have been allowed a brief
recovery period.
Figure 11
• Close the battery compartment (D).
• After inserting the batteries, pay
attention to the flashing sequences
of the LED (see „9.4 Error codes and
If the voltage drops too far during
transmission, the empty battery symbol
( ) and the corresponding error code
will be displayed on the device, (see
es“ on page 28). In this case, replace
the empty batteries with two new ones
25).
Once the batteries have been inserted,
the radiator thermostat will perform
a self-test (approx. 2 seconds). After-
wards, initialisation is carried out. The
LED test display will indicate that in-
itialisation is complete by lighting up
orange and green.
If an empty battery has not been rec-
ognized, the radiator thermostat
moves back into a “valve error posi-
tion”. This avoids, that the set tem-
perature in the room increases due to
a low battery. A valve error position of
15 % is set in the factory settings.
Caution! There is a risk of explo-
sion if the batteries are not re-
placed correctly. Replace only
with the same or equivalent type.
Never recharge non-rechargeable
batteries. Do not throw the bat-
teries into a fire. Do not expose
batteries to excessive heat. Do not
short-circuit batteries. Doing so
will present a risk of explosion.
26
| General | Details |
|---|---|
| Name | homematic IP HmIP-eTRV-2 Radiator Thermostat Instruction Manual |
| Make | Homematic IP |
| Language | English |
| Filetype | PDF (Download) |
| File size | 3.35 MB |
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