Recent content by 13brv3

  1. 13brv3

    GX CS4 Overheating issue

    There are almost too many fans to choose from, and you'd want to avoid the 4pin PWM fans. 120mm is a common size, so it seemed like a good option. 38mm thick gives more airflow than the more common 25mm thick fans. I figured if the thicker fan seemed like too much airflow, I could scale down...
  2. 13brv3

    GX CS4 Overheating issue

    I turned the factory fan back around so it blows the hot air out of the case, and ended up adding a second fan on the rear of the case pulling cool air in. The fan I used is 120mm x 38mm and claims to be 118 CFM. I ran the compressor (with the cover on of course) 1.25 hrs and it stabilized...
  3. 13brv3

    GX CS4 Overheating issue

    I'm at about 4.5 hrs now, so it's within the range they say to first turn the grease pot knob. The sticker on top says to turn it 2 turns the first time, then one any time after that. I've verified that there is an air pocket like most have found, and it almost sounds like they know that based...
  4. 13brv3

    GX CS4 Overheating issue

    There's nothing wrong with the sensor. I've verified that it's activating at it's rated temp. The pump is just generating more heat than it's supposed to.
  5. 13brv3

    GX CS4 Overheating issue

    The pump seems like it has really good flow.
  6. 13brv3

    GX CS4 Overheating issue

    Reversing the fan didn't help enough to be worth the trouble. It might have gone 10 min more before hitting 150F, but it's clearly not a solution. It's going to need extra fans, so I'll think about what to try next.
  7. 13brv3

    GX CS4 Overheating issue

    As with the OP, GX never responded to the PayPal case, so the purchase was refunded. It looks like they do their best to convince you that overheating is OK, and if you don't accept that they don't fight it. Anyway, I guess I'm free to experiment now. Step one will be turning the fan...
  8. 13brv3

    GX CS4 Overheating issue

    I'm curious if you ever tried turning the fan around? Having the air pulled in from outside for the radiator would have to help water and compressor head temps, though the motor temps would suffer. The motor is already the hottest part but I'm not sure what the reasonable temp limit is for a...
  9. 13brv3

    GX CS4 Overheating issue

    Thanks, but if the CS4-I would work as advertised, it's perfect for me. I like that it's compact, quiet, and self contained. I'd ultimately mount my high pressure dryer on the side, and add an hour meter, plus maybe a temp gauge.
  10. 13brv3

    GX CS4 Overheating issue

    I typically top off large tanks (80 cu ft) from about 3400 to 4500, so I have to avoid the compressors that are intended for primarily filling guns. I would typically be doing 2-3 back to back. The 5 hr run time was one of the most appealing features of this little compressor.
  11. 13brv3

    GX CS4 Overheating issue

    The engineer in me really wants to do more testing on this, but I'm trying to resist until I get a resolution. I think you also mentioned that your 0-300 bar test with just the hose was around 24 sec like mine. The manual says something like 36 (clearly too lazy to look it up <g>). It would...
  12. 13brv3

    GX CS4 Overheating issue

    GX continues to insist that the compressor isn't defective and can't be returned, so PayPal case has been opened.
  13. 13brv3

    Deal on a CX4i?

    The CS4-I I got direct from GX ended up being about $125 cheaper than the Amazon price, but since it overheats in 30 min I may regret not having that Amazon return option. In general it seems they're good, but it's my luck to get a bad one. The refund request is still ongoing, so I'm not sure...
  14. 13brv3

    GX CS4 Overheating issue

    Water Wetter is just a surfactant that likely won't make much difference. A couple drops of dish soap probably would work as well. The head and water temps are very close, and the air coming out of the radiator fan is very hot, though I didn't measure it. That all pretty much verifies that...
  15. 13brv3

    GX CS4 Overheating issue

    I just sent them my final reply: "The compressor doesn’t work as advertised. It overheats in 30 min in an air conditioned basement. This is the definition of “defective”. I will not disable a temperature safety circuit, and I won’t return it for “repair” since you’ve already said you will just...