Troubleshooting - Gira KNX 213900 Operating Instructions Manual

Heating actuator 6-gang with controller
8

Troubleshooting

Valve drives of an output or all outputs do not switch
Cause: An output is overloaded.
Determine cause of the overload switch-off. Eliminate short-circuits, replace de-
fective valve drives. Check number of valve drives connected to the output, re-
duce if necessary. Do not exceed max. switching current.
Reset overload switch-off: disconnect device from mains completely for approx.
5 seconds, switch off miniature circuit-breaker. Then switch on again.
In case of overload, initially one or both output groups switch off for approx.
6 minutes. After that the device determines which output is overloaded and
switches it off permanently. This rest and test phase lasts 6 to 20 minutes.
After resetting of the overload switch-off it is no longer possible for the device
to determine which output is overloaded. If the cause is not eliminated, over-
load switch-off will occur again.
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