Sensor Fail uFa???

[sashin]

i guys, just wanted to know if any of you have this error message on the LCD . I was playing Far Cry yesterday and all was fine except that after i turned off the computer, i could not get it started back again and everytime i pushed the Power On button i get the error message Sensor Fail uFa or something along those lines. Anybody got any ideas...Phil??

What do i need to do to get this corrected? Do i have to send the unit over to you Phil? Previously my Mach 2 was running perfectly fine and total usage time now is about 700 hours.

Any suggestions will be greatly appreciated.

Regards

Sashin

 

[NaZGuLL]

i guys, just wanted to know if any of you have this error message on the LCD . I was playing Far Cry yesterday and all was fine except that after i turned off the computer, i could not get it started back again and everytime i pushed the Power On button i get the error message Sensor Fail uFa or something along those lines. Anybody got any ideas...Phil??

What do i need to do to get this corrected? Do i have to send the unit over to you Phil? Previously my Mach 2 was running perfectly fine and total usage time now is about 700 hours.

Any suggestions will be greatly appreciated.

Regards

Sashin

I got the same thing on my Mach II and on my current model Mach II GT. It started as an intermittent problem. Disconnecting the power plug from your chiller directly after use seems to have a possitive affect as the problem didn't occure that frequent anymore. But it's not a cure and eventually you won't be able to start anymore.

I sent my Mach II to nVentiv Danmark, after 8 weeks I got it back. Despite any visible alterations on the coolinghead I kept my trust in man. It was of course a stupid thing to do, within two weeks the intermittent problem became a permanent problem.

My sollution at the moment is a variable resistor of 100KOhm. Before I start the system I turn the resistor towards 2KOhm (approx. +20 Celsius), start the coolingunit , wait for 2 minutes and then turn the variable resistor towards 50KOhms (approx. -55 Celsius). If you want to try it yourself avoid resistance values above 50 KOhms and below 2 KOhms, you get controllerboard errors - make yourself a resistor network to keep the resistance between the mentioned values.

I bought the Mach II GT to get rid of this problem, but in no time I experienced the same bug. I could have it repaired because it's still under warranty. But after my first repair experiences, I pass.

I now got several types of NTC resistors (2,2KOhm) from which I will connect one to the controllerboard (together with a couple of correcting resistors). That will do the trick.

NaZGuLL / The Netherlands

 

[sashin]

I got the same thing on my Mach II and on my current model Mach II GT. It started as an intermittent problem. Disconnecting the power plug from your chiller directly after use seems to have a possitive affect as the problem didn't occure that frequent anymore. But it's not a cure and eventually you won't be able to start anymore.

I sent my Mach II to nVentiv Danmark, after 8 weeks I got it back. Despite any visible alterations on the coolinghead I kept my trust in man. It was of course a stupid thing to do, within two weeks the intermittent problem became a permanent problem.

My sollution at the moment is a variable resistor of 100KOhm. Before I start the system I turn the resistor towards 2KOhm (approx. +20 Celsius), start the coolingunit , wait for 2 minutes and then turn the variable resistor towards 50KOhms (approx. -55 Celsius). If you want to try it yourself avoid resistance values above 50 KOhms and below 2 KOhms, you get controllerboard errors - make yourself a resistor network to keep the resistance between the mentioned values.

I bought the Mach II GT to get rid of this problem, but in no time I experienced the same bug. I could have it repaired because it's still under warranty. But after my first repair experiences, I pass.

I now got several types of NTC resistors (2,2KOhm) from which I will connect one to the controllerboard (together with a couple of correcting resistors). That will do the trick.

NaZGuLL / The Netherlands

Hi there NaZGuLL, wouldn't it be better if not easier to just get a new controller board from these guys at EP? I don't know much about what you have mentioned above....sounds all foreign to me...sorry not in the know when it comes to these resistors!!

Anyway you are right, the problem did resolve itself after i disconnected from the mains and i was able to start the unit normally and everything was fine. BUT you have stated that this problem is a recurring one so i don't know how long this will last. Anyway i am sending my Mach 2 unit for conversion to a GT model and i know this involves changing the controller board. Anyway while i was packing the unit for postage, i caused i leak in the system as i heard hissing noises coming from within the box!! So i have just left it to these guys at EP for a service and a regas to r507....hope this service will sort out this initial problem and prevent it from happening again....only time will tell. On the plus side of things, their service work carries a 1 year warranty on the parts that have been changed, so if it screws up again....back to EP the unit goes!!

 

[Phil Stanbridge]

Yep the easiest solution by far is to replace the controller.

 

[fatty]

I would agree with that at least if it fails after that you know it is definatley the sensor

 

[Firelord]

This was a similar issue to what I had on my old mach II... quick chat with phil and had a new controller board and charge arranged shame it got destroyed in the post

From everything I had seen and experience it defo indicates a faulty controller board...