I have 2 issues. on one Comfort II board 2 of the 8 main outputs have stopped working. can you tell me which IC is the output relay driver? is it the plug-in small sub board, with IC 74HC2590 soldered onto it and is the sub board readily available as a replacement, if so, what is the part number?The second issue relates to another Comfort II board, which keeps giving battery warning alerts, at the same time every day, when the battery is actually fully charged. Is this warning given by another 8-pin plug-in comparator IC 58ALN3M? It would be a shame to replace the main board, if the IC is replaceable.
many thanks GrahamLast edited on Sunday Dec 4th, 2022 03:06 pm by Ghyllwood
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