Weird System Behaviour - looking for thoughts (preferably from professionals)

Hi,

Had a Panasonic multi split fitted in October 2025. Outdoor unit is an 8kW 4 way, and 3 units inside (5/2.5/2kW respectively).

When it was first fitted, I raised that the outdoor unit was a bit noisy. I also calculated that the pipe run was 4m over the minimum, requiring 80g of additional R32.

The summer came and during the high heat at the end of June, the system shut down with an F91 error (low pressure). The system was diagnosed as low on R32 and 550g was added (engineer determined this based on the pressure read out.

After this, the system ran great all through July, barely pulling above 800w even when the temperature pushed into the low 30s.

On the 12/13/14th of August, when it was very hot, the system pulled a bit more - 1-2kW throughout the day, which was expected. It kept the house cool.

My concern comes from the behaviour AFTER. From the 15th onwards, the system is now incredibly over-reactive. It turn on my PC and play some games (up to 800w load in the 5kW room), the outdoor unit ramps up to over 1kW. Lower the set point in the bedroom (2.5kW unit) by 1c, system ramps up to 1kW for an hour.
It also feels like it's prioritising either the 2 smaller units OR the bigger unit. Until recently it was happily balancing all 3.

Is it likely that there's a leak / lack of refrigerant again or is this something else? I did read somewhere that the very hot weather can cause the system to adapt its behaviour, which may explain the spiking, but I don't feel like it explains the unbalanced cooling.

reddit.com
u/teeeeeeeeem37 — 2 days ago

Sick of LMP2 drivers in this game.

Flair is discussion, it's more a rant.

Spent 35 races working my way up to Silver 3 by being careful and cooperative; have been really enjoying multi class racing on Spa last week, but Laguna Seca this last week has been an absolute joke.

I like LMP3 the most; I'm not the fastest but I'm doing my absolute best to race cleanly and not get involved in the carnage. I've had a fair few podiums but no wins.

Enter the LMP2s; I've been dive-bombed through basically every corner imaginable, got wiped out on the entrance to the corkscrew because someone just HAD to pass me, and wiped out on the exit because someone who missed the corner didn't rejoin safely.

And now, I've been given a 24 hour ban and had my safety rating nuked from S3 to B1 because of an 'intent wreck' when an LMP2 overtook me and tried to move back on to his racing line and pit himself across my front bumper. Reckons I should have lifted (which I did but by that point, he was already pushing me left).

Says 'oh you should have lifted' - so next time, I lift early, anticipating the LMP2 is going to dive-bomb me through T5, and instead get shunted straight off the track from behind.

I throughly enjoyed working my way up to S3 (and I wasn't pit starting and hanging back before anyone says it) and was really enjoying the multi class on Spa but genuinely not sure I'm going to get that love of the game back after the last week and now the cherry on the top.

Meanwhile, I protested a car who cut the grass and rejoined into the side of me and I was told it was an accident.

reddit.com
u/teeeeeeeeem37 — 3 days ago

Has anyone has the melting connector with the revised plug?

Morning

Gateway MCB in my inverter tripped this morning whilst exporting which is a classic sign of the A/C connector on the inverter starting to fail. Of course, it could be something else entirely.

I had my inverter replaced in march with the three phase style AC connector (rather than the plugs). No smell of heat/burning around the plug and no errors in the app (apart from saying external fault / inverter offline).

Has anyone had the plug / connector melt with the updated inverter? (12kW SP)

reddit.com
u/teeeeeeeeem37 — 15 days ago
▲ 1 r/moza

Moza CRP2 Brake Pedal - Load Cell Dead?

I've had my CRP-2s for about 2 months now, maybe used for ~200 hours. Just heard a large cracking sound coming from the brake pedal under moderate load (easily less than 100KG) and now I'm getting zero reading from the load cell.

Has this happened to anyone else? Known issue?

reddit.com
u/teeeeeeeeem37 — 1 month ago
▲ 871 r/Simracingstewards+1 crossposts

I didn't expect this kind of behavior in a race.

BMW M2 Cup, 2nd from bottom split, this guy comes out of no where from the right and side swipes me. I should report this, right?

Edit 1: I have the wheel hidden when driving when hiding but it turns back on in replays. But yes, I should probably raise the seat a little 😄

u/ThreeDog2016 — 2 months ago
▲ 159 r/AskUK

What's the obsession with everyone calling a decades old house a new build?

I constantly see posts on here, Facebook, etc, where people are asking questions about their houses.

Will see said houses described as '2005 new build', '2013 new build'. I've even seen '1995 new build' lately.

In my mind, a new build is a house that's maybe no more than a couple of years old, and generally on its first inhabitants. Arguably everything was a new build at one point, but no one's going to describe Windsor Castle as a '1070 new build'.

Am I missing someone or are people latching on to new build as some sort of status symbol?

reddit.com
u/teeeeeeeeem37 — 2 months ago

BMW to the left was adamant that he was in the right because the car in front 'didn't move'. I feel I was already established, Ferarri in front of my had a go at the BMW.

Still relatively new to this so taking everything as a learning opportunity. Don't feel like the move I made was inherently problematic, mainly felt bad for the car in front of me who got taken out as collateral.

BMW's attitude was that the car in front didn't move. 'Where else could I have gone?'

Mainly interested in whether there was anything I should have done differently?

Apologies for the video, Shadow Play decided it was epilepsy day.

u/teeeeeeeeem37 — 3 months ago
▲ 1 r/moza

Moza HBP over sensitive

Hello,

I've had a look back and there's been a few posts about this but nothing suggested has worked for me.

Have got a week old HBP installed at about a 30 degree tilt on a Simetik K3 frame.

When I calibrate it in Pit House, it works perfectly, but if I let it go, it springs back past the natural resting point, then lands back in the resting point which causes it to read as 'active'.

I've tried all 3 spring options (default yellow, blue and black rubber block) and it happens with all. I've also tried tightening and loosening the screw.

I can replicate the issue by pushing the handbrake back up and letting it back down

If I calibrate, it goes back to normal until next time the level bounces back.
I'd expect the 'zero' point to be set as part of calibration?

Is there anything I can do to fix this, other than keeping a 30% dead zone.

reddit.com
u/teeeeeeeeem37 — 3 months ago