ALDE 3020 not heating water on electric only

[Portocale]

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 ?

 

[ProfJohnL]

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.

 

[Portocale]

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.

 

[IanB1485]

The definitive way to check if the heater elements are working is to measure the current draw on the mains , a bit tricky but if you can find a single brown wire (live ) and fit an A.C clamp meter to the wire, it will show you the current. 2kW at 240V approx is 8.3A . In England a faulty Alde unit is recommend to be returned to Alde for repair , however you can buy a new element and it looks quite a simple repair

 

[Portocale]

Thank you for the answer, however, I do not believe it is a burnt heating element; I am leaning more towards a control element or a malfunction in the motherboard. I did the opposite; I am in Greece, and even though it is very hot during the day, the temperature drops to 20 degrees at night. I set the night temperature to 25 degrees, everything worked perfectly, the boiler provided heating (I mention that it is powered by 220 V). I also have hot water, but I can't set it individually as hot water, I have to type 1 or 2 kW in the general control. Until now, it was possible, as mentioned in the instructions:
If there is no heating need, but the boiler is only
working to generate domestic hot water, the boiler works
at the electrical power output which has been selected.
Best regards, Alex

 

[Buckman]

If you have heating you should have hot water. I think that you may have set it up incorrectly and that there is nothing wrong with the system? Firstly go into the settings menu, then scroll through until you see an icon "reset". Press that icon to reset the ALDE system. It then changes to the original factory default settings.

Even in the UK 25C at night is far too hot and it is more comfortable at 18C during the night. You need to use the 2kw setting.

 

[Portocale]

Problem solved, guys, I must choose first the electric power, 1-2-3 kw or gas. Alde answer me. Thanks ALDE and who answers me. Have a good day to all.