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need help with Laing Mcp355 pump

post #1 of 7
Thread Starter 
hi guys my mcp 355 died yesterday, but it used to stop working about a few months back but I tried swapping the turbine out and it works until yesterday... the weird thing is that it stops working when in a loop but if I take it apart and turn it on it spins... whats wrong with it? im running about 7.7-8.5 v

any suggestions? now im using a brand new one but I don't wanna lose it again... could it be overheating?
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post #2 of 7
Does it run reliably at 12V?
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post #3 of 7
Thread Starter 
I never tried to run it at 12v, normally I run it at 8.2 - 9v and its still failed on me, sometimes it starts sometimes it doesn't, should I run it at full power?
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Custom built by myself Windows 8 Pro LG 42 HDTV and Samsung Thin Bezel 3 monitor setup Microsft wireless and Razr something gaming key... 
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800D Gaming Pc
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Hard DriveHard DriveHard DriveOptical Drive
OCZ Vertex 3 WD Black  WD Green LG Blu-ray 
CoolingOSMonitorKeyboard
Custom built by myself Windows 8 Pro LG 42 HDTV and Samsung Thin Bezel 3 monitor setup Microsft wireless and Razr something gaming key... 
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post #4 of 7
Voltage range is 8-13.2V with a minimum start up voltage of 9V. I'd run it at 12V to confirm it works OK at that voltage.
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Seagate Momentus 2TB Sony Optiarc AD-7690H Slimline DVD-RW Blocks - EK Supremacy, 3 x EK FC-580GTX, EK FC-... Radiators - 2 x Black Ice SR1 480, 2 x Black Ic... 
CoolingCoolingCoolingOS
Pumps - Swiftech 35X2 x 2 & Heatsinks Reservoir - EK Multioption X2 400 Advanced Fans - 20 x Noiseblocker PL2 Windows 7 Pro 64-bit 
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post #5 of 7
Running at that low of a voltage could burn the coil out, because it will try draw to much amperage. Try running it at 12v like the others have said, and double check the spec sheet before under volting next time.
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CoolingCoolingCoolingCooling
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post #6 of 7
Most likely it's just got a little more resistance over time so the minimum voltage isn't cutting it anymore. Put 12v to it to see if it works.
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Hydra TH10A
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Mercury Vault
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CPUMotherboardGraphicsRAM
5960x Rampage V Extreme 3-Way SLI GTX 980 Ti Hydro Copper 16 GB Dominator Platinum 
Hard DriveCoolingCoolingCooling
480GB Intel 730 SSD Raid 0 x4 Custom Loop 4x 480 Alphacool Radiators Aquacomputer Aqualis 
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Acer B326HK Razer Black Widow 2014 Corsair AX1500i  Case Labs TH10A 
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post #7 of 7
Thread Starter 
Now running at 11.5-7 v cus I'm using lamptron fan controller, is it fine to use? Thanks for all the comments btw
800D Gaming Pc
(16 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 2600k Asus Maximus iv extreme Z 2X Geforce GTX TItan SLI Kingston Hyper X 
Hard DriveHard DriveHard DriveOptical Drive
OCZ Vertex 3 WD Black  WD Green LG Blu-ray 
CoolingOSMonitorKeyboard
Custom built by myself Windows 8 Pro LG 42 HDTV and Samsung Thin Bezel 3 monitor setup Microsft wireless and Razr something gaming key... 
PowerCaseMouseAudio
InWin Commander 1500w Corsair 800D Obsidian Microsft and Razer Naga wireless Denon 1911 
  hide details  
Reply
800D Gaming Pc
(16 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 2600k Asus Maximus iv extreme Z 2X Geforce GTX TItan SLI Kingston Hyper X 
Hard DriveHard DriveHard DriveOptical Drive
OCZ Vertex 3 WD Black  WD Green LG Blu-ray 
CoolingOSMonitorKeyboard
Custom built by myself Windows 8 Pro LG 42 HDTV and Samsung Thin Bezel 3 monitor setup Microsft wireless and Razr something gaming key... 
PowerCaseMouseAudio
InWin Commander 1500w Corsair 800D Obsidian Microsft and Razer Naga wireless Denon 1911 
  hide details  
Reply
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