Troubleshooting center
High Energy Bills & Long Runtime
Systems that run all day, never satisfy, or cost more than they used to.
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.
5 guides in this category
Runs all day, still not cool
Continuous runtime without a satisfied thermostat means capacity or delivery is falling short of the heat load.
Read the answerRuntime has crept up
A gradual increase in runtime usually points to a gradual loss somewhere — capacity, delivery, or load — not a single sudden failure.
Read the answerHigh bill despite new AC
New equipment fixes what's inside the cabinet — it does not automatically fix distribution, sizing, or envelope issues elsewhere in the house.
Read the answerAC never cycles off
A system that never shuts off is either matched to a heavy load and doing its job, or is losing capacity or air faster than it can produce it.
Read the answerDo leaky ducts raise bills?
Yes, leaking supply and return ducts can raise energy use — but the size of the effect depends on where the leaks are and how the ducts are routed.
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.