Introduction
To decalc the water heater I disassembled the water heater (or at least what was necessary for the decalc process. The linked video is a similar water heater, although another model. Sorry I didn't take enough pictures on the go, but I believe it still may help someone who wants to do it on their own
What you need
Video Overview
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Unplug the water heater
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Close the incoming water valve (cold water)
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Drain the water from the water heater through the emergency exit of the heater.
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It might be necessary to drain through one or both of the water in- and output valves. Most of the water will come out of the cold water in valve though
Ask FixBot
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Remove the red and green wires with the 8mm wrench
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Do this on both sides
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Remove the ground wire and ground metal connector with the T20 Torx screwdriver
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1 screw from the outer wire
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2 screws at the end of the connecting rod
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Gently pull out the thermostat wire and the metal
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Gently remove the small white insulation around the connecting pipe
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Hold the brown ceramic squared part and unscrew the single screw at the end of the small curvy metal that holds it in place (Torx T20 screw)
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Once the screw is removed hold the metal in the hand and gently pull out the long ceramic heating unit
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Do this on the other side as well
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Loosen the 6 screws holding the big metal cylinder in place.
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Once the water stops, loosen all screws while holding the metal
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Gently pull out the metal
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Remove the rubber sealing around the rim
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Clean the inner part of the heater gently with a cloth, or just by hand
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To reassemble your device, follow these instructions in reverse order.
