Bradford White RG250T6N Water Heater Problems & Error Codes — Overview
The Bradford White RG250T6N is a 50-gallon atmospheric gas water heater with a 6-year tank warranty. This model uses a gas control valve with integrated diagnostic flash codes that display fault conditions through a status light on the valve body. The most common field issues on this unit involve gas valve faults, pilot outages, and related sensor or pressure switch failures that prevent normal heating cycles.
Most Common Problems on This Model
- Gas valve fault (Code 7 or Code 8 flash) The gas control valve has failed internally or lost communication with sensors, and the valve assembly needs replacement by a qualified technician.
- Pilot will not stay lit or repeatedly goes out The thermocouple or pilot assembly has weakened or corroded, or the gas valve’s pilot coil has failed, requiring pilot assembly or gas valve replacement.
- No hot water or burner will not ignite The gas supply is off, the pilot is out, or a pressure switch or high-limit switch has tripped and opened the control circuit.
- Status light not flashing or no light at all The gas valve has lost power due to a loose wire connection, faulty wiring harness, or internal valve failure.
- Water not heating to set temperature The thermostat dial on the gas valve is set too low, the dip tube is broken allowing cold water mixing, or the burner is partially blocked and reducing heat output.
- Pilot lights but main burner will not fire The thermocouple signal is weak, the gas valve’s main coil has failed, or a safety switch (pressure or high-limit) is preventing the call for heat.
- Burner flame is yellow or sooty The air intake is blocked, the burner orifice is dirty or misaligned, or combustion air is insufficient due to venting problems.
- Water leaking from tank or fittings The tank has corroded through, the temperature and pressure relief valve is weeping, or threaded connections at the top have loosened.
Parts That Commonly Fail
| Part | Notes |
|---|---|
| Gas control valve assembly | Amazon | Most common fault component on Code 7/8 errors and pilot outage conditions. |
| Thermocouple or pilot assembly | Amazon | Frequently fails due to corrosion or flame sensor weakening over time. |
| Temperature and pressure relief valve | Amazon | Can weep or leak when sediment buildup or high temperature causes repeated operation. |
| High-limit switch or pressure switch | Amazon | Opens the control circuit when the unit overheats or venting conditions are unsafe. |
When to Call a Pro
All gas valve diagnosis, pilot assembly work, gas line connections, and pressure/combustion testing must be performed by a licensed plumber or gas technician. Bradford White designs its flash-code system for professional diagnosis and does not publish the full code table for consumer use. If you see any flashing status light pattern, smell gas, hear unusual sounds at the burner, or the pilot will not stay lit after one attempt, shut off the gas supply at the manual shutoff valve and call a qualified service technician. Electrical and sensor testing requires a multimeter and knowledge of the control circuit, and any tank leak or pressure relief valve discharge requires immediate professional evaluation and likely replacement of the entire water heater. For gas line, burner, or igniter work, or if you ever smell gas, stop and call a licensed technician.