ALDE 3020 not heating water on electric only

Sep 8, 2025
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Good day, I have a caravan which is almost 5 years old, fitted with an ALDE 3020 HE compact. I am in a camping and from a couple of days the domestic hot water does not work on electric. If I push the gas icon, everything is fine. I tried today a different approach, I start also the heater at 2 kw and after some times the domestic water is fine. But if you used for bathroom is barely enough. I thing something is wrong, some sensor or other part does not work properly, the electric heating elements is working on electric. What is your opinion, based on long experience with ALDE ?
 

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Mar 14, 2005
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I appreciate that English may not be your first language, and I guess you are not in the UK .

Your posting has left a number of unanswered questions. Can you tell us how long you have had the caravan, and has the heater worked correctly for you previously?

Do you understand the 230Vac side of the heater needs to have the caravan connected to a 230Vas supply to work?

And the Alde heater does not make instant hot water. It needs to be turned on for at least 15mins or longer to produce hot water.
 
Last edited:
Sep 8, 2025
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You are right, English is not my native language and I don t want to use a translator. I own the caravan for 5 months. Was a demo caravan and was is deposit for almost 4 years. Not used inside/on the road whatsoever. Practically brand new . This have some downsides, the fridge has amoniac blocked (solved) water pump faulty in short time ( changed). I am an automotive engineer, so I know technical terms. Of course the 220V is present, is heating the antifreeze and by that the domestic water. But before, as is mentioned in the handbook, it works only on hot water, was not necessary to heat the water for heating purposes, and works very well.
 

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