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H150i Coolant Temp below zero and intermittent flashing red LEDs


faroutfarms

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Hi,

Components:
MSI PRO Z790-P Wifi DDR4
Intel i5 13600KF
AMD Radeon RX 6900 XT
Corsair iCue H150i Elite Capellix (White)
All fans and LEDs are running into the Corsair Commander Core that came with the H150i

I'm getting a bizarre glitch or malfunction or something. This morning, I turned on my computer just like normal and after 10 or so minutes all of my LEDs in my computer start flashing red and the fan speed ramped up. So I opened up iCue to see what was going on.

All of my CPU core temps were normal. Everything was normal except for the coolant temp reading. It was reading in the negative degrees Celsius. Well, that's pretty much impossible.

I restarted iCue and my computer, but the issue persisted. Everything will be normal for some time, then, just seemingly out of the blue, the red flashing will start again and the coolant temp will read way down in the negative. And then, a second or third (or even a fourth I saw it get to one time) coolant temp reading will show up in iCue.

To me this just seems like it has to be some kind of glitch. Either a faulty signal being sent to iCue or iCue itself is just glitching out. But I don't really know.

I tried moving the pump cable from  the CPU_FAN1 header to the PUMP_FAN1 header. It seemed like it helped after a restart but, again, after about 20 minutes, the issue happened again.

I tried forcing a firmware update in iCue for the pump. Didn't help.

I've attached a bunch of screenshots just showing several different bizarre readings in iCue.

Since none of my CPU temps are spiking, it seems to me like there isn't actually an issue and the pump is working fine. Oh, I even manually checked that the pump is indeed working during the red flashing LEDs by feeling the tubes while it is happening (you can feel that the water is flowing) and it definitely is working.

Any help or insight would be helpful.

Screenshot 2023-02-06 103348.png

after moving cable and first error now has 2 coolant temp readings.png

after moving cable was fine for about 20 minutes.png

flashing red and fans ramped up.png

Screenshot 2023-02-06 104705.png

Screenshot 2023-02-06 104718.png

Edited by faroutfarms
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  • 1 year later...
On 2/5/2023 at 10:46 PM, faroutfarms said:

UPDATE:

I uninstalled any other hardware monitoring software programs that I had and restarted my computer and now iCue has given me the notification that my pump has failed and that I need to contact support.

But, again, my CPU temps are perfectly fine.

Any fix? mine started to do this this morning? My temps are also good.

icuepumpicon.jpg

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3 hours ago, Paper said:

Any fix? mine started to do this this morning? My temps are also good.

Unfortunately this is a known hardware issue and has been luring around since the product launched.  This 'false pump fail' error does not seem to have a user side resolution.  We have guessed it is some type of tach sensor or related circuit fail that triggers the warning, even though the pump continues on and thus CPU temps are fine.  The problem is this error state locks you out of the device controls, so it is effectively bricked in the meantime.  You need to contact Corsair Support so they can replace it.

 

However, there have been some other instances that produce what appears to be a similar error but is not fatal.  Try the standard power cycle trick.  Shut down the PC and flip the PSU off.  Wait 30 seconds or hold the case power button down for 10s to drain any residual power.  Flip the PSU back on and start normally.  Try stopping in the BIOS to rule out any type of software interaction.  Occasionally users have posted the unit comes back for a few seconds, before then falling back into the pump fail state when the OS loads.  This also is the solution for the originally mentioned 'negative liquid temps', so it is a good first troubleshooting step when things are out of sorts.  Unfortunately, if the pump fail comes right back on, that is not likely to change with subsequent attempts.  

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Do you still think its safe to game? I opened up two games at the same time just to see if the temps would rise and the temps stayed around 65c. I only had them running for a few minutes. Just been spending the day trying to figure this out. I do have a ticket with corsair so hopefully they can just send me a new one and i can still use my pc as normal til then. 

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Yeah, should be safe to continue using it.  I wouldn't do any 24 hour stress test silliness, but with any AIO if the pump stops you'll know pretty quick and there are multiple safety systems to shut things down before the CPU gets into thermal jeopardy.  It should continue to run from it's firmware based fan curve.  I have one in the closet from 3 years ago locked in this state.  I can take it out any time and it runs -- I just can't control it and that is the major issue at the moment.

 

See if you can ask for the "Advanced RMA".  That's where they ship you the new unit on a credit card hold, which is then released when you ship the defective unit back later.  That should cut your down time to zero and make swapping stuff over easier too.  

Edited by c-attack
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28 minutes ago, c-attack said:

Yeah, should be safe to continue using it.  I wouldn't do any 24 hour stress test silliness, but with any AIO if the pump stops you'll know pretty quick and there are multiple safety systems to shut things down before the CPU gets into thermal jeopardy.  It should continue to run from it's firmware based fan curve.  I have one in the closet from 3 years ago locked in this state.  I can take it out any time and it runs -- I just can't control it and that is the major issue at the moment.

 

See if you can ask for the "Advanced RMA".  That's where they ship you the new unit on a credit card hold, which is then released when you ship the defective unit back later.  That should cut your down time to zero and make swapping stuff over easier too.  

thanks for the info.

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