Cleaning The Cover - Immergas 3.030908 Instruction And Warning Book

2.12 OPERATION IN FAULT CONDITIONS
Radio communication failure between room probe and concentrator: Failure in receiving data from the wireless probe causes the relative error to appear
on the display; typically the error is signalled after 4 minutes, keeping the last reading on the room probe active with consequent heating function as
previously running.
After 10 minutes of no communication, the boiler acknowledges the "out of order" probe; two dashes appear on the display instead of Room Temp. and the
error signal is activated under the zone identification "house".
Operation with the "out of order" room probe causes a boiler heating request with minimum zone flow set in any selected program condition (24 hours a day). The
only heating off condition is the selection of the OFF status on the zone menu.
Fault on room sensor NTC:
At the first communication of an out-of-range ambient value (after max. 4 minutes) the condition of "probe out of order" is acknowledged; then proceed
with the operation described above (permanent heating request at minimum set point in any operating condition other than the OFF state).
Fault on concentrator (M3 bus communication failure):
When the concentrator off-line error is connected, the "probe out of order" logic is immediately implemented.
2.13 WIRELESS ROOM PROBE BATTERIES REPLACEMENT
The concentrator displays the "E121" error code or "E122" or "E123" (depending on which probe is faulty), when the connection with the wireless room probe
fails or when the batteries of the wireless room probe run out.
When the error "E121" or "E122" or "E123" appears on the boiler display (de-pending on which probe is faulty), it is necessary to check the battery charge
of the wireless room probe and replace them if necessary. To carry out this replacement, proceed as follows:
- separate the fixing support from the cover of the Room probe by prying with a screwdriver in the appropriate recess (Fig. 17);
- manually pull the cover outwards to separate it from the support;
- replace the batteries (Fig. 18) and reassemble the cover.
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Fig. 17

2.14 CLEANING THE COVER.

To clean the kit cover use a dry cloth. Do not use abrasive or powder detergents.
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Fig. 18