Water Heater Leaking From the Bottom
A bottom leak usually means the drain valve, a loose fitting, or a corroded tank. Here’s how to tell which — and what each one means for your budget.
Water Heater Leaking
Where the water is coming from tells you what’s wrong. Use this leak-location guide before you call anyone — and know when to shut off water and power right now.
Tankless Water Heater No Hot Water
Tankless unit giving zero hot water? Check these in order before calling for service — most causes are simple and fixable in minutes.
Water Heater Reset Button
Most water heater reset buttons are the high-limit switch behind the upper access panel. Here’s where to find it and why it keeps tripping.
Electric Water Heater Not Heating
Electric water heater with no hot water? Test the high-limit reset, then the elements and thermostats in the right order.
Water Heater Not Heating
No hot water? Work through gas, electric, and tankless causes in the right order — starting with the fastest checks first.
Noritz Error Code 90
Noritz error code 90 relates to venting or combustion. Noritz’s own help center covers the basics — here’s the fuller diagnosis path.
A.O. Smith Heat Pump Water Heater Error Codes
A.O. Smith’s hybrid heat pump water heaters (Voltex and newer models) show numeric error codes on the control panel. Here’s what’s confirmed so far.
Rheem/Ruud/Richmond Blinking Light Codes
Rheem, Ruud, and Richmond gas water heaters share a White-Rodgers gas control system with its own flash-code pattern. Here’s how to read it.
Bradford White AeroTherm Fault Codes
Bradford White AeroTherm heat pump water heaters use F-prefix fault codes. No one publishes a full HTML table — here’s what we’ve verified so far.