Jura model Z Replace water heater

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Here is one of the two water heaters removed.

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Loosen the Torx T15 screw on the lid over the instant hot water heater.

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The support of the instant water heater is fastened with a single, slightly recessed screw. Unscrew this Torx T15 screw.

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The two water heaters are fixed in the middle with a Torx T25 screw (marked in red). The locknut on the back is loose in the carrier and often falls out while turning the screw.

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Remove the cable shoes from the water heater connections.

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Now only the hoses are connected. They are attached with clips.