GUIDES
Pick what your heater is doing. Each guide starts with the cheapest likely cause and only sends you to a pro when the job genuinely needs one.
Power, reset, thermostats and elements — the exact sequence that finds the fault, with the multimeter number that pinpoints a dead element.
The red ECO trips for a reason. Why you should stop pushing it and how to find the shorted part.
How to tell a fixable fitting leak from a failed tank in five minutes, before you spend on anything.
Thermocouple, thermopile or gas valve — how to test each one without a service call.
Rotten-egg smell or rusty water? The rod is the cheapest fix that buys a tank real time.
Ignition failure. What to check with gas, venting and the flame rod before you reset the unit.