Hi Lars,
It is likely that the IQ8 micro's are more subject to line noise then
previous models. We've had line noise and comm's issues in the past
with IQ 7's as well. A cheap solution that we have had some success
with is to put ferrite core snap together chokes around L1 and L2 PV
input wiring. You can get these at Radio Shack for about $6-8 a piece.
This would be a much cheaper solution then the Enphase filter. You can
also try the solid core type, and your installers can just pass the
conductors through them as they wire the combiner box. You can also get
much less expensive in line filters that are similar to the Enphase
filter on Amazon for $20-50 a piece. Good luck and happy solaring.
Jason Lord
Mendocino Solar Service
On 2022-10-27 8:21 am, Lars Ortegren via RE-wrenches wrote:
Seemingly out of the blue we've had a number of installs (all IQ8)
that are having Line Noise issues preventing the MIs from
communicating from the Envoy. In both of our recent installs they are
not in neighborhoods that have a number of systems, and the issue is
not finding too many, but finding very few to none .
Enphase has suggested purchasing a Q-LCF-064-1P line filter ($500),
and I wanted to see if this is something that is "more common" on the
IQ8 that we should plan on as part of our pricing. Any wrenches found
cheaper alternatives that work?
Lars
[1]
Links:
------
[1] https://californiasolarco.com/quote/
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