Troubleshooting center
Problems After AC Replacement
New equipment, same complaints — what a replacement fixes and what it leaves untouched.
Each guide answers the question first, then explains the likely causes in order — duct leakage only where the evidence actually supports it, and a licensed HVAC contractor where it doesn’t.
6 guides in this category
Still hot after a new AC
New equipment doesn't change the ducts, the load, or the envelope — and any of those can leave a house hot.
Read the answerOne room still hot with a new AC
A single room's shortfall usually traces to the duct branch feeding it, not the equipment supplying the whole system.
Read the answerPoor airflow after replacement
New equipment can only push as much air as the duct system will pass — a restriction upstream limits everything downstream.
Read the answerNew AC runs constantly
Long runtime after a replacement can be normal variable-speed behaviour, or a sign the equipment is fighting a load or duct problem.
Read the answerHigh bill after new AC
Efficiency ratings describe the equipment, not what actually reaches the rooms — losses elsewhere in the system erase the expected savings.
Read the answerStill humid after new AC
Cooling and dehumidifying are related but distinct jobs — a new unit can lower temperature without controlling humidity if airflow or runtime isn't right.
Read the answer
Find out what your duct system is actually doing.
Schedule a duct leakage evaluation and get measured numbers for your home — not a guess.