Frequently Asked Questions

Category: Instantaneous Water Heater

Question Common
General
Can I hire a qualified technician to do water heater installation by myself if I know exactly which model to replace my old one?
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General
What is the best way to clean and maintain the Instantaneous Water Heater?
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Technical
The water of the Instantaneous Water Heater remains cold and its digital display screen does not light up. Why?
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Technical
Why is the Instantaneous Water Heater displaying the error code "Er"?
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Technical
The Instantaneous Water Heater displays the error code "NO" and is not responding to the remote control. Why?

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