Brian H

Your memory is good. The maximum was dropped from 9 minutes to 8 minutes. Trying to set 9 minutes goes back to around 2 seconds. I don't think there is a secret way to get 9 minutes on the updated modules ramp rates.

63 Links sound low for most setups. You may what to try it a few times. As any activity may cause the count to be incorrect. Did you power cycle the PLM? Two of the signs the PLM has power supply issues. Is a low link count and works for awhile after a power cycle. Though a 2020 purchase sounds like a awfully short time span. Can you see the Date Code and Hardware Versions on the back side of the PLM. That may also give you a clue.

Depending on the hardware revision you are trying to rebuild. You may find a different size capacitor in the C7 and C13 positions. The kit has the latest 100uF/50V capacitors in it. In mine they are too large physically to fit into the locations on the main board. So they are parallel to the board and the two leads are bent 90 degrees into the solder pads. If you choose to get the 7 capacitor kit. Check the revision sticker on the rear of the case. Hardware V2.4 and above. Has a new serial board and no C2 or C5. The older serial board has a C2 and 4 small capacitors 1uF/25V that I have see anyone try and change. As far as I can tell. C5 is only in the Smartenit EZIO relay module.

Most revisions of the 2456S3 Appliancelinc and 2856S Icon On Off modules. Remember if it was on or off. With a power loss and restoration. It will be on or off depending if it was on or off when power was lost. I have a revision 4.2 of the 2456S3 module. Always powered up off. Even if it was on after a power loss. I believe in my spares there is a 2856S Icon with the same always power off action.

There where a few revisions of the 2456S and 2856S Insteon Appliance Modules. That defaulted to Off when On before the power loss. I have not seen any Insteon Modules presently sold with that action.

The schematics are for the older 2412S PLM. Though the basic information has not changed that much. The memory on the daughter boards schematic is the slower speed memory and transformer type power supply. In the 2413S it has a faster access memory chip and the F1 fuse is not installed or the newly designed one. The 2412S could also send unregulated 12 volt DC out on the serial cable. To power things like the ISY99i and ISY994i. 2413S has enough power supply issues to not have up to a 400mA output to an external device.

If the 2443 Access Points are a revision 2.0 and above. They are built on the base 2413 PLM main board. Subject to the same power supply issues we see in the 2413S PLM. They can also be rebuilt with the power supply repair information. The older ones where built on the older interface module. I imaging {but never did} you could change the caps in them and they may also work. I do have extra Insteon modules. So for now I am OK but in the future. Not sure which way to go.

Since the ISY994i does not check what type PLM it is connected to it. A working 2413S Serial Board in a new 2413U USB PLM should work. If you where using software that checked what it is connected to. It may cause an issue. As a 2413S serial daughter board in a 2413U USB PLM. Will report the USB PLMs Category and Subcategory ID. I would not try a serial port daughter board from a 2412S PLM. The link memory is on the daughter board. Has a slower speed than the memory in a 2413. Could also be the original 417 link size or the >2000 size. That seems to miss things over about 800 links. On a ISY994i. I did see Smarthome say they had some serial port failures on the daughter boards. The Revision 2.3 the serial interface chip was changed to one with a better ESD rating. V2.4 added some signal protection on the serial port. signals and the later chip.

3543 is definitely wrong. The 2413S is around 1000 and the older 2412S was around 2000 but choked in the ISY interface if over 800. How old is the PLM? That do real strange things when the power supply is starting to go bad.

Received Insteon RF signals. Get synchronize to the module receiving its Zero Crossing signal. Before being passed on or acted on. The older power line only modules. Where not rated to be used on 3 phase power by Smarthome. They did say Dual Band ones did work on 3 phase systems.

If the PLM PRO in the FCC Database ever see the light of day. Especially now that Nokia seems to be the big push. With NO information from Smartlabs. Who knows. It has a universal power supply. 100VAC-240VAC 50/60Hz. Faster and bigger Link Database. Serial and USB. I did see a reference to an Ethernet style also. On one of the Labels given to the FCC. Serial version can also supply DC, to power things like the ISY994i on the serial connector. Kind of like the old 2412S could. For now if you find one. 120VAC 60Hz.

Every module that was controlled by a HUB. Is going to have its six digit Insteon ID. In its link database. Factory Reset removes all links and you start with fresh slate.

If you have a series 500 ZWave board. It needs firmware V5. As part of the ZWave certification added in V5. https://forum.universal-devices.com/topic/33287-release-534-test-build-is-now-available/

I looked at some of the FCC Database internal photos of some Insteon modules. The LNK354GN is also in a 2472D, 2474D, 2477D, 2475DA2. Since it is not Dual Band and not in the FCC Database. I have also seen the chip in the 2450 I/OLinc. There maybe others as I didn't look at every file.

Both of the LEDs on the Network Jack should be on. If it is connected to a network and working . They may flicker when communicating on the network. If they are off. That would explain why you can't access it. The Administrative Console Screen. Is the main screen you normally see when accessing the ISY994i. Probably the ISY Launcher thees days. It boot up. It looks for a PLM and if not found would go into the safe mode but you should still be able to access it over the network.

That is the switching supply chip. It is powered from the power line. So it must have taken a big hit. You may also find one or more of the diodes in the high voltage supply to it shorted or blown open. Along with the MOV across the AC input that stops spike on the AC power input but it has its limits on how big a hit it can absorb. The 6.8uF/250V cap may also have been damaged.

The early revision 2412S PLM was 417. That later was expanded to 2014. I have seen some reports here that the 2014 links models had around a 800 links size before things started to be missed. In the ISY994i setup. The 2413S is 1000 and has a faster memory chip in it over the 2412S's. The PRO ISY models have a higher limit to how many devices and links allowed. The early power line only modules. That used the original I1 protocol. Used Peeks and Pokes for messaging and took a real long time to do anything. The later I2 and I2CS is much more efficient.

What are the indications on the two LEDs on the Network Jack? If you had some network ports and devices fail. It maybe possible the ISY994is network port is damaged. Can you get into the ISY994i to see what the Administrative Console and tests may show? Even with no PLM connected you should be able to get into it in the Safe Mode No PLM found mode. https://wiki.universal-devices.com/index.php?title=ISY-99i/ISY-26_INSTEON:Troubleshooting_Flowchart

Hardware Revision 2. Are built on the same base 2413 PLM main board. Also subject to the same capacitor issues as we see in the 2413S PLM. I had to rebuild a set of then myself.

Very nice video. Thank you for posting the link. Some versions of the PLM have a different value C7 and C13. Smarthome tried larger capacitors to try and correct the capacitor failures. I have seen a few different capacitor values. 100uF/35V. Then they changed C7 and C13 to Fujucon TY series capacitors. That are rated to be in a switching power supply. 100uF/50V that is physically to large to fit on the PCB. So it is laying against the PCB with bent leads into the capacitors mounting holes. V2.3 had a new RS232 Interface Chip with a better ESD rating. V2.4 started a new Serial Port Daughter board. With the better ESD Chip and some signal protection on the serial signals to the outside world. Thank you for the testing of the serial port daughter board in a 2413U. I do not have any 2413U models to try and test with.

I agree with larryllix. The O is probably the reversing valve and it is being set to the heat position.

I have not seen any easy way to find the Link Database size. Other than observing what my assortment of PLMs had inside and what Smarthome sales said when the 2412 went from 477 to 2016. My 2412S Revision 2.75 Firmware 63 was my last 417. Revision 2.9 Firmware 72 was changed to 2016. One thing I do remember is the larger Link Database memory. Was too slow the use the whole 2016. I had seen >800 starting missing things. All the 2413S PLMs are 1023 with a faster memory. Missed the most obvious thing. Pop the top cover and read the part number on the chip. 2412S 24LC32 was the 417. 24LC128 was the ~2000. I did have a old 2412S with the 2414S serial board in it. 24LC256, RTC Chip and its coin cell battery backup. Though RTC and most of the memory was not available. 2413S 24FC64.

At the least. You will have to provide the C Common power connection. To power the 4411TH.

The ISY99i and ISY994i both use the serial port 2412S or 2413S PLMs. The 2414S,2414U and 2814U are all PLC modules and not a PLM. Completely different device and would not work. A 2413U was mentioned as working in the project. The older 2412U may work also. Though depending on it revision. May have the smaller 417 Link Database.

Thank you for the added information. That I had missed reading the thread.