Found why all my wires were shorted…

For context the thermostat wire was run in the seal tight conduit.

Someone had joined two rolls of wire.

They then put non insulated connectors together wrapping four of these wires together in each of these shrink seals. With nothing separating the four wires and connectors not even a sliver attempt of electrical tape.

My coworkers thought I was crazy when I said I had all wires shorted on new construction less than a year old.

Surprisingly didn’t blow a fuse, did blow a transformer after jumping a call for heat at the air handler using Red/Yellow/Green. But it didn’t happen right away it was delayed five minutes then it made a nice pop.

Anyways after a new transformer and finding this fuck up, the heat pump fired right up 😛