Bradford White Water Heater Troubleshooting Guide
On this page (6 sections)
The Short Answer: First identify which type of Bradford White you have. Atmospheric gas tanks report faults through a flashing LED on the gas control, and older mechanical controls have no light at all. Electric tanks have no diagnostic light. Heat-pump and tankless models show codes on a display. A leaking tank means replacement. Most other faults are repairable.
Atmospheric gas tanks (Defender)
Look at the gas control on the front of the tank. Bradford White has used several controls. The White Rodgers mechanical control has no status light and uses a thermocouple. The White Rodgers electronic, Honeywell V1 and Honeywell V2 controls have a status LED and use a thermopile. Bradford White’s service manual gives these meanings for the LED controls:
| Status light | Meaning |
|---|---|
| Off | Pilot not lit, control unpowered |
| One flash every few seconds | Pilot lit, burner off. Normal |
| One flash every second | Burner on, heating. Normal |
| Solid on after turning the knob to OFF | Shutdown. Wait for it to go out before relighting |
| Two flashes, pause | Low thermopile voltage or weak pilot signal |
| Three flashes, pause (Honeywell V1) | Insufficient water heating; sensor out of calibration or control fault |
| Four flashes, pause | Excessive tank temperature or temperature cut-out |
| Five flashes, pause | Sensor, electronics or gas valve fault (Honeywell V1: temperature sensor fault) |
| Six flashes, pause (Honeywell V1) | Water leak detected by an accessory leak module |
| Seven flashes, pause (Honeywell V1) | Gas control electronic fault |
| Eight flashes, pause (Honeywell V1) | Pilot still on with the knob at OFF. The control needs replacing |
Where to go next:
- Light off, pilot out: Bradford White pilot light reset or status light not on
- No pilot flame at all: pilot won’t light
- Pilot goes out on release: Defender pilot won’t stay lit
- Two flashes: weak pilot signal
Four, five, seven and eight flashes are gas control or sensor faults that a technician needs to diagnose. Don’t keep cycling the control.
Electric tanks
Standard Bradford White electric tanks have two elements and two thermostats. A high-temperature limit sits on the upper thermostat. No hot water usually points to the breaker, the high limit, or the upper circuit. Hot water that runs out quickly usually points to the lower circuit. You can check and reset the breaker once. Resetting the high limit and testing the parts happen behind the electrical covers and need a technician. See Bradford White electric not heating up.
Lukewarm water
Bradford White’s chart for not enough hot water covers the temperature setting, cold inlet water, high demand, sizing, calibration and the dip tube. See Bradford White not hot enough.
Leaks
| Where | Usually |
|---|---|
| Top of the tank | Connector, nipple, anode fitting or relief valve. See leaking from top |
| Relief valve discharge pipe | Pressure or temperature problem. Never cap it |
| Drain valve | Valve seat or washer |
| Electric element or thermostat cover | Element gasket or tank. See leaking at the thermostat panel |
| Out of the insulation or base, fittings dry | Tank. Replace the heater |
Models with a display
AeroTherm heat-pump models, Infiniti tankless units and some power-vent models show codes on a display or controller, and some sound an alert. Look up codes in the manual for your exact model. Bradford White explains how to find a manual from the model and serial number (opens in a new tab). See also Bradford White beeping.
Frequently Asked Questions
Q: How do I find my Bradford White’s age? A: The serial number on the rating plate encodes the manufacture date. See how old is my water heater.
Q: Do these LED meanings apply to Bradford White power-vent models? A: Not necessarily. The table comes from the service manual for atmospheric Defender models. Power-vent and high-efficiency models use different controls with their own code lists.
Q: Is a Bradford White gas control the same as a Rheem or A. O. Smith one? A: No. Even when a similar control maker is involved, the flash codes and parts are specific to the heater manufacturer and model. Use Bradford White’s documentation.
Manuals and supporting references
These links distinguish general safety information from model-specific documentation. A manual directory helps you locate your unit’s instructions; it does not establish that every model uses the same parts, codes, or test values.
- Bradford White: Defender Safety System atmospheric gas service manual (238-51542-00C) (opens in a new tab)Bradford White atmospheric FVIR gas models listed on the manual cover; LED tables for White Rodgers electronic and Honeywell V1/V2 gas controls.
- Bradford White: find your water heater manual (opens in a new tab)Use the model and serial number to locate the correct documentation.
- PG&E: recognizing and responding to a gas leak (opens in a new tab)Emergency actions for suspected fuel-gas leaks.
- A. O. Smith technical bulletin 51: puddles around a heater (opens in a new tab)Common water-leak sources and the distinction between fittings and a failed tank.
Editorial standards and corrections · Prepare a useful service request