Patrick C

Ok great. Thanks for all the info from you all. Will follow up on these and report back.

Hello, right ok. Sorry for slow reply, have had a lot on and not got back to this issue until now. Yes we have a box similar to that, and I'm familiar with the loud clonk and the buzzing. It's still doing clonks and buzzing when very hot water is called for, but the water is not heating up. This leads me to think the immersion rod has stopped working. This would seem a bit strange mind you, as the original one stopped working after a few years and we had it replaced last year, so it's still fairly new. I wonder if you know how I could get the system to heat the water using the heater in the heat pump, until we can get the immersion rod checked out/changed.

Ah right ok, thank you. I hadn't realised it could be using two different electric heaters. I remember now you say there was talk of a heating element in the heat pump, but I had thought that that was to get the heat pump going or something like that. So in answer to you, no i don't know which it is trying to use. The symbols that showed up when I ran the disinfect operation was the 'raindrop' (💧) symbol which refers to disinfect operation, along with the 'shower and electric bolt together ' symbol (🚿⚡) which in the manual says is 'e-heater'. But as I say, I assumed that symbol meant the heater in the tank, because I didn't think it could be the other one in the heat pump. This symbol also appeared when I set the tank temp higher earlier. But on neither occasion did the tank temp rise above 48°.

Right, thank you so much for that response! You were correct that when I called for heating with the thermostat, I could then go to control panel and adjust tank temperature! Unfortunately i still have a problem it's not using the heat pump to continue to heat the tank as I'd hoped it would. strange to me as the tank is currently only 48°. Instead it's trying to use the eheater which doesn't seem to do anything now. (It's already been replaced once as the original one stopped working, part of a long long saga due to dodgy installation company, Hero renewables, so bad they were featured on BBC scam trader show) I wonder if there's a way to use the heat pump to heat the water tank higher, or if that's simply not possible. If anyone has any ideas, I'd be glad to hear from you. many thanks. 🙏

Hi thanks for reply. Yes Ive searched through the whole code input section if that's what you mean. I may as well outline what I've tried and why I suppose. Recently we didn't use the tank hardly at all as we were away, and then noticed that the hot water has an unpleasant smell to it on return. Googling returned that it was likely a bacterial build up and that disinfecting tank would be needed. So I turned on the system which had been off, but remembered that the disinfectant cycle only comes on weekly, so we could be waiting a whole week for it. This is when I figured out how to program it via the the 'gear' button and going down to 26 and changing the inputs there to the desired time , and then on 27 to the temperature and duration. Unfortunately though this turned on the disinfection and eheater symbols, but for an unknown reason to me at this point , the tank temperature did not rise at all, let alone to the 60 and 70 degrees that i set it to. (Suspect the eheater may be not working) So! I then thought, ok I'll just raise the tank temperature to what it can do with the heat pump as that will surely be a lot better than nothing (though I'm aware this isn't going to be enough to stop legionnaire danger, so long term will have to figure out what's up with the eheater). I'm pretty sure it can do 60degrees (currently it heats it to 48) which would eliminate a lot of bacteria and probably get rid of any odour. (It's already been much lessened by usage and having the water heating on all the time) *Thanks for coming to my ted talk* And so, this is when I spent days trying to figure out how to change the tank temperature! 🤦🧐🙄

Holy moly if this is true that's bonkers and also you're a lifesaver! Will give it a try shortly and report back. Thanks in advance!

When you press the 'water heating' button it toggles the shower symbol where it says hot water. The symbol is visible in the first video I posted. So I'm able to press that which enables/disables the hot water heating, but not to adjust target temp

Untitled (2).mp4 Hmm, video not showing on my post, so I've tried posting again.

Hi again, Ok thank you. Yes I've tried pressing the set temp button too. Unfortunately nothing at all happens then. This is what happens... VID_20230630_152846 (1).mp4

Right, I've compressed the video, so hopefully it will upload now... Untitled.mp4

Hi there, thanks for reply, I initially tried to but max file size is 5 mb so video is too big. Maybe I can turn quality down on my phone and film again. I'll see if that works.

Hello there, Wonder if any legend on here can help me. We have had an LG Therma V heat pump installed and use it to heat radiators and hot water. I want to increase the temperature of the hot water in the tank but when I try to follow the instructions as set out in videos or manual, I am unable to. I've tried searching everywhere and tried contacting LG but no luck finding anything. *This is what I've tried* Pressing 'view temp' until it shows tank temperature Pressing 'set temp' Pressing 'up /down' (but nothing happens) Have also tried various other combinations but had no luck. Anyone encountered this? Many thanks to anyone who can possibly help. Regards Patrick