On Tuesday, June 11, 2019 at 6:44:10 PM UTC-4, James wrote:
replying to clare, James wrote:
Add 1 more to the count of people experiencing this issue with new furnace &
new condensate pump plugged into a newly installed GFCI.

Symptoms of the issue were that the new touchscreen thermostat just turned
off, later on the same day that it was installed! This was *after* inspection
from an electrician that the plumbers & HVAC people called in.

So, not only the condensate pump is on the GFCI, but the furnace too?
Furnace does not have to be GFCI and I would not wire one into a GFCI.




The next day, the guy that came back out found that the issue was the newly
installed GFCI powering the condensate pump had tripped. We didn't even think
of this, because that outlet didn't exist before! (thus no GFCI) There was an
alternate safety sensor on the evaporator coil condensate drain pan, which we
searched online about and originally assumed was the issue. The HVAC guy that
came out was from the same company that installed it, yet he didn't have any
knowledge of why this */or any/* GFCI would trip.

Not clear here, maybe the condensate not pumping out triggered a sensor
and that shut off the furnace/AC?




So /assuming both/ the HVAC installers & electrician knew what they were doing
this should have never happened. Yet it still happened.

Even with all the code books, rules, regulations, training and supposedly
proper equipment installed this still happened in 2019. Go figure.

So what's wrong? Bad condensate pump? Bad GFCI?