MacGyver Fix to a Communicating AC System

August 23, 2018 HVAC School 1 Comment

My own Carrier Infinity system has had an issue intermittently with communication loss after storms and power outages. I show you a fix that has been recommended to me by many techs to use spare control conductors as a sort of shield.

–Bryan

One comment

cdearruda says:
August 23, 2018 at 10:42 am
Thanks for that suggestion Bryan.
If that does not correct your problem you may wish to consider use of MOVs (Metal Oxide Varistors) to reduce transients or over voltage spikes.
https://www.electronics-tutorials.ws/resistor/varistor.html
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