DIAGNOSE BEFORE YOU CALL A PLUMBER
Cold showers, a reset button that won't stay in, water pooling under the tank. Most of it traces back to one of a few parts. We walk each symptom down to the actual cause — electric, gas, and tankless.
Two elements, two thermostats, one high-limit reset. When the water goes cold or lukewarm, the fault is almost always in that chain — and a $12 multimeter tells you which part.
Pilot that won't hold, a burner that clicks but won't light, tankless error codes. Usually the thermocouple, gas control, or a venting/flame-sense issue — not a whole new unit.
WHY HEATERSCOUT
We don't sell you a new heater on step one. Each guide starts with the cheapest, most likely cause and only sends you to a pro when the repair genuinely needs one.
MOST-READ FIXES
Breaker, reset, thermostats, elements — the exact order to check when there's no hot water.
The red ECO/reset trips for a reason. Stop pushing it and find the shorted part first.
Tank failure or a fixable fitting? How to tell in five minutes before you buy anything.
Thermocouple, thermopile, or gas valve — how to test each without a service call.
Rotten-egg smell or rusty water? The rod is the cheapest way to add years to a tank.
Ignition failure. What to check with gas, venting and the flame rod before you reset.
Pick your symptom and we'll narrow it to one component.