Kemper Remote not working after walking to a rehearsal in cold weather

@topic opener:
Indoors, when electronic components are cold, condensation can form in the device (similar to fogging up glasses) and this can cause short circuits.
Therefore, such devices should be unpacked and you should wait at least 15 minutes before you supply them with electrical voltage.
For example, many a television that was delivered in a cold truck has died from this.

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