Brian H

If it is less than two years old. Go for the warranty exchange. The module has a switching power supply in it and the same power supply chip as the 2413 PLM. I guess another possibility is a capacitor or component failure. I did not see any MOV surge components in it but it maybe a surface mounted one I am not familiar with. As I only looked at the top side of one of mine and the photos in the FCC Database didn't show any style I am familiar with. Smarthome says >1000 volt surge rating.

Add the new module with a name you can remember. Pick the defective module in the Administrative Console. Use the replace with choice with the name of the just added module. That should remove the old module and add the new one . Wiki page on replace a device. https://wiki.universal-devices.com/index.php?title=ISY-99i/ISY-26_INSTEON:Replacing_a_Device

Looked at the MCS specifications sheet. It looks like it would trigger an I/O Linc sensor input.

Rand; Time does seem to fly by. I have an early production 2412S where they used the serial board from the 2414S. Unused Real Time Clock chip, battery and larger ram use to store downloaded SALAD programs.

I know a MAMAC SYSTEMS CT-800 AC current sensor. Will trigger an I/O Linc. Senses .5 amps to 200 Amps. I know they also have a model with a sensitivity control to set it closer to what you want.

One other thing I thought of. If they put a serial board from a 2413S in it. At least it would have had the link database size of a 2413S and the faster memory. Though I don't know if a 2412 would take advantage of the faster memory.

If the unit you just got. Is a 2412U with a Serial Port daughter board swapped in. It would be a power line only and not a Dual Band module. Also depending on age. 417 or >2000 Link Database slower memory on daughter board. If you compare the units weight. The 2412S is much heavier. As it has a power transformer power supply. The 2413S has a much lighter switching power supply. The Developers Guide for the old 2412S. Hold Set Button for at least ten seconds while plugging it in. LED on steady external memory on daughter board found. Blink six times. No external memory found. Link Database is 32 if memory serves me. If you got this from Amazon was it sold by them or a Amazon merchant? I have seen some indications not all the merchants are on the up and up.

The ISY994i does not require you to remove the cover. Though the Wiki page shows the cover removed. May not be needed now but could be easier. The Micro SD Card is accessed through the front panel. Behind the snap in cover over it. It does not use the type socket where you push it in and then pops out when released. You have to gently pull it out with a tweeter and not drop it into the case. Personal experience on fumbling it. The UDI Wiki is a great pace to find information. https://wiki.universal-devices.com/index.php?title=Main_Page https://wiki.universal-devices.com/index.php?title=ISY-99i/ISY-26_INSTEON:Replacing/Formatting_an_SD_Card

It may depend on your setup and modules. Many of mine are power line only modules. With a few Dual Band one in the mix. I still use them as the later ones dropped X10 and I still control them with an X10 HR12A Palm Pad remote. For me a good working set of Access Points is needed. For the Insteon controls and a JV Digital Engineering XTB-IIR for X10. As it respects Insteon and does not try and scramble the Insteon commands.

If the 2443 Access Points are hardware 2.0 or higher. They are built on the same base 2413 PLM board. The hardware 1.? are on the older boards used in the 2412. They can have the same power supply issues as a greater than two year old 2413S. I had two go bad myself. I believe the LEDs where out out real dim and failed the built in communications tests. I rebuilt them with the same parts used in the long PLM repair thread. Both are now functioning again.

Thank you for the information.

Glad I may have helped. One thing I may not know. Is what Smartenit did to their daughter board. So my memory size and speed. Along with the F1 fuse may not apply to theirs. As I believe it has a optional RS485 interface.

The earlier Smartenit units where built on a base 2412 main board . Then on a base 2413 main board when the 2412 was discontinued. The 2412S did power the ISY99i or ISY994i through the Serial Port connection. The same base daughter board was used in the 2413S. The F1 fuse was not installed. So it did not power things through the serial port connector. The fuse was 400mA if memory serves me. I am not too sure how much extra current capacity a 2413 main board has. So how well it will power the ISY99i or ISY994i is not known. Also not 100% sure the DC is total y isolated from the power lines in a 2413 main board. From your description it very well could be the extra power used by the ISY994i is overloading it. Also the memory on the 2412S daughter board was slower and depending on the age. Had a 417 or ~ 2000 Link Database on it. Depending on its age you may have a small Link Database . It will also have a slower memory access speed over the 2413S daughter board. I don't have any information on the differences between a 2412 daughter board and what Smartenit may have on their added daughter board. You could try disconnecting F1 if it has one and powering it through the external wall wart. To see if anything changes. If the PLM and the external wall wart are trying to power the ISY994i. The higher voltage will power it. Since the PLM voltage is higher. Even if both are connected. Most likely the PLM is still powering it.

It probably is the PLM. If you care to read a real long thread on the PLM issues and how some of us repaired theirs. https://forum.universal-devices.com/topic/13866-repair-of-2413s-plm-when-the-power-supply-fails/

If it is over two years and a few months old. That would be another factor in determining it has failed. Along with the LED on the side sometimes being dim or RED.

I believe my V2.3 has the same date code. Maybe around the same time you got yours. Maybe I have a surprise lurking in my future. Unless something has changed. You could do a cross ship. Where they charge you CC for the new replacement and then issue a credit when the old one was received back. Last time I did a Open/Closed sensor. They emailed me a FedEx prepaid return label.

You did make sure you powered up the PLM so it could initialize, before powering up the ISY994i? So it could be found by the ISY994i when it started. It does sound like the PLM may have failed. Your dates indicate it is within the two year warranty. You should be able to do a warranty exchange for a replacement. We have seen reports of recently purchased or warranty exchanges. Now being hardware 2.4

If it was on the same AC Circuit as the computing equipment, UPS or AC conditioning outlet strip and the equipment was not on a FilterLinc. Probably absorbing the power line signals. Forcing most messages to try and use the Insteon RF signals. Since the I/OLinc is power line only communications. It needed power line commands from either the PLM or another Dual Band device passing on the messages.

Yes it is a limitation in 4.6.2. Adding it as the earlier model Allows it to do basic functions. Some here that also have a HUB. Have used the HUB to set the options and then add it to the ISY994i Module Tree.

The receiver may have a nice AC rated capacitor across the power line input. To keep its internal electronic noise from feeding back on the power lines. The cap will also absorb Insteon power line signals as noise. Even when Off. The capacitor is still there. That is why it is recommended to unplug devices when testing. As pointed out. Added another device on the same circuit, May have killed the signal even more. A FilterLinc on the receiver is one way to go.

The IOLinc is a power line communications only Insteon module. It most likely is not bad. You probably have a signal issue between the PLM AC circuit and the IOLinc AC circuit. While the Switchlinc to the IOLinc and PLM have a better power line signal. Could also be the SwitchLinc to the PLM are using the RF signals the IOLinc can't use. Do you have any Dual Band Modules or Range Extenders coupling the two incoming power lines and used the built in communications tests to verify good communications? Is the PLM on the same circuit as the computing equipment? They frequently absorb Insteon power line signals if not on a FilterLinc. You may want to unplug electronic devices and see if things change. As some also can absorb signals or make power line noise.

OK. Though the SwitchLincs we where talking about where the old 2476S/D power line only ones and in 2007 if my memory is correct.

I had some earlier hardware ones with the opposite issue. Local Buttons did not work but the control communications where fine. Smarthome had an issue with the small tact switches the buttons activated. They extended the warranty on that run of hardware to seven years.

Can't say about the outlets. I do know some of the modules also protect the relay contacts. With a resistor/capacitor snubber. When off there is a small current through the snubber. Can keep small loads like Christmas lights glowing when off.

Was the 2466 being used at the time? Not highly likely but some devices are sensitive to Insteon power line signals.