Mario's chiller on alarm

Mario’s chiller is sounding an alarm and the alarm light remains on. I turned it off and on again to no change. Left a note on the machine.

Luigi is working for me. I opened and closed the front panel as I know it had been opened the other day. Dunno if that helped or not.

2 Likes

This I will look at this later tonight

2 Likes

There’s some distilled water on the shelf now. It was fairly low but a refill didn’t make it happy. Seems to not have any pressure on the lines to the machine when compared to Luigi.

2 Likes

I fully drained it and put a gallon in. It is not pumping at all. I have it connected to it self so it will just loop water. @Christian @ssaner Any suggestions? My next thought is to take the casing off it and see if we can find the pump clogged.

2 Likes

Here are the next troubleshooting steps for this situation according to the manufacturer

Chiller Alarm (red light on)–not water circulation
Cause analysis
1、Low water level
2、Switching power supply problem
3、DC Pump problem
Detection method
1)Observe whether water tank is lower than pump
inlet
Recommendation: Add Pure water
2)Use the measuring tool to detect the switching power supply (picture) Output
voltage: CW-5000 Series switching power supply operating voltage is DC24V.
8
2.1)If the switching power supply output is lower than DC18V, the low voltage is
affecting the pump lift and flow, can determine the switching power supply or pump failure.
Suggestion: Change the switching power supply first to determine whether the pump is faulty
too.
2.2)If the switching power supply has the output DC24V, may determine the water pump
failure

3 Likes

Can we go back to this? Do you mean the one at working table height or the one below?

Digging back into the wiki history, if this chiller is original to the laser cutter, it recently turned ten years old. So there may be up to 10 years of gremlins stored in there haha.

1 Like

The main door is the only one with a safety switch. The laser will run fine with any of the other panels open, but it is unsafe to do so.

I think the troubleshooting steps Asrah posted are a good place to start. Check power supply voltage, check for clogs, make sure everything is connected. It is also quite possible that the pump has just failed.

2 Likes

On Lugi I opened and relatched the door that is level with the honeycomb since someone was having problems with him not firing. Looks like this isn’t a door with a switch anyway, but basic troubleshooting told me to make sure that wasn’t an issue since I knew it was used recently before the person had issues.

Mario’s problem is very obviously the chiller. Luigi still hasn’t given me any issues.

1 Like

This could help if it is not in properly and is preventing the main door from closing all the way.

2 Likes

With @ladeana 's help it’s working again.

The issue which as guessed at by multiple people was the pump was not working.

Checked everything else first, Voltage out, fans, compressor, and it all pointed to the pump.

Interestingly, As soon as I took touched it to clean off the label, it worked, my guess is it was jammed with something (connections all seemed good). It has been working for an hour plus with no alarms. (Other than momentary testing by punching the lines, which gets an instant alarm response, as well as the initial alarm on turning it on which goes away. (All as it should).) Wish I could claim credit for exactly what happened (as then I’d know, maybe this is simply the threat of percussive maintenance, as I just had gotten out a hammer.)

So Mario is working, but either replacing the pump or having one on standby would be good.

@ladeana was doing some cutting on it to make sure it works, and I haven’t heard that it failed since then.

Also, the side air “filters” were cleaned, and we should probably take them outside and air blast the dust out of the insides, but I was tired by that point.

Also, there was one less screw hole than screw when reassembling it. I’m not sure if it was occupied before this or not.

Here’s the label for reference. (Looks like $45 on Amazon model is p2430) @FabLab

6 Likes

I tested for 1.25 hours or so and it seemed to be working just fine.

5 Likes

Ok, so now I know that Mario is a diva… Should have guessed by the name. Lol

Much love to everyone who worked to get him back up and running!!

1 Like