GARDENA Smart Gateway Repair

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Ultimo aggiornamento il March 31, 2024

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Introduzione

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If the GARDENA smart Gateway can no longer be powered on there may be various reasons which are easy to fix. This guide refers to the fuses installed in the device.

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2920L125PR Littelfuse
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Passo 1 Open device

GARDENA Smart Gateway Repair, Open device: passo 1, immagine 1 di 2

GARDENA Smart Gateway Repair, Open device: passo 1, immagine 2 di 2

Remove the rubber feet. Below are four Torx T9 screws.

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Passo 2 Fuse

GARDENA Smart Gateway Repair, Fuse: passo 2, immagine 1 di 1

Identify if the fuse is blown. Take a multimeter and measure the resistance. There should be no measurable resistance.
If the fuse is defective it should be replaced with a new one. Component listed under parts.

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Passo 3 TVS Diode

GARDENA Smart Gateway Repair, TVS Diode: passo 3, immagine 1 di 1

Second component likely to fail is the TVS Diode (Transient-voltage-suppression diode). It is used to protect the sensitive circuit from overvoltage.
Measure the resistance on the two terminals. Resistance should be infinite.
If component is broken the circuit is shorted. Therefore the component can be removed in order to repair the device. Afterwards the circuit is not protected against overvoltage anymore!