Novelan heat pump error 704 hot gas fault

Can you switch solely to heating?
If low temperature works, at least you have heating. You can improvise hot water until the technician arrives.

Can you switch to heating only? If low temperature works, at least you have heating. Hot water can be improvised until the technician arrives.

Yes, that seems possible… But I am afraid that the compressor will break now.

Do you not have emergency operation, purely via heating element?

Do you have no emergency operation, purely with the heating element?

We have a second heat generator, but the heating works. I have now turned off the hot water and have to wait until a professional comes.

Hi , I only saw your post just now. I hope you still had a nice Christmas with your family. What is the current status? Hopefully, you have switched to heating rod for hot water preparation? The latest data logs from your LAD showed no abnormalities regarding hot gas in hot water preparation, but they are already a bit old. Do you have logs from the time shortly before the error message occurred? Regards

Moin ,
Unfortunately, I only saw your post now.
I hope you still had a nice Christmas with your family.

What is the current status? Hopefully, you have switched the hot water preparation to the heating element?
The last data logs from your LAD did not yet show any abnormalities regarding hot gas during the hot water preparation, but they are also older. Do you have logs from the time shortly before the error message occurred?

Regards

Good morning, yes, Christmas was great. I hope everything is good with you too and that you had nice holidays.

Unfortunately, I don’t have any current logs at all. We are currently on a ski vacation; everything was quite tight before Christmas and stressful.

The error has not occurred again. I have agreed with our heating engineer that if it happens again, a specialist company should come. Our plumbing company cannot do anything about error 704.
Since then, the heat pump has been running flawlessly. The error definitely occurred when it was -11°C outside. It must also have had something to do with the location somehow, but it was definitely not normal. Fortunately, we have a second heat source to which we could switch.