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homematic IP HmIP-eTRV-F Radiator Thermostat Instruction Manual
Troubleshooting
larity.
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.
To insert new batteries, proceed as
follows:
• Open the battery compartment (F)
by pulling the cover of the battery
compartment downwards
(see figure).
• Remove the batteries.
• Place two new 1.5 V LR6/Mignon/
AA batteries in the battery com-
partment, observing the polarity
marks.
If the voltage drops too far during
transmission, the empty battery symbol
( ) and the corresponding error code
will be displayed on the device, (see
„10.4 Error codes and flashing sequenc-
es“ on page 43). In this case, replace
the empty batteries with two new ones
(see „9 Changing the batteries“ on page
41).
10.2 Command not confirmed
If at least one receiver does not con-
firm a command, the System/Menu/
Boost button (E) lights up red at the
end of the failed transmission process.
The reason for the failed transmission
may be radio interference (see „13
General information about radio op-
eration“ on page 46). This may be
caused by the following:
Figure 15
• After inserting the batteries, pay
attention to the flashing sequences
of the LED (see „10.4 Error codes
and flashing sequences“ on page
43).
• Receiver cannot be reached.
• Receiver is unable to execute the
command (load failure, mechanical
blockage, etc.) or
Once the batteries have been inserted,
the radiator thermostat will perform a
self-test and an adjustment run, if re-
quired (approx. 2 seconds). Afterwards,
initialisation is carried out. The LED test
display will indicate that initialisation
is complete by lighting up orange and
green.
• Receiver is faulty.
10.3 Duty cycle
The duty cycle is a legally regulated
limit of the transmission time of de-
vices in the 868 MHz range. The aim
of this regulation is to safeguard the
10 Troubleshooting
10.1 Weak batteries
Provided that the voltage value permits
it, the radiator thermostat will remain
42
| General | Details |
|---|---|
| Name | homematic IP HmIP-eTRV-F Radiator Thermostat Instruction Manual |
| Make | Homematic IP |
| Language | English |
| Filetype | PDF (Download) |
| File size | 14.49 MB |
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