Bradford White 6 flashes
Bradford White 6 flashes: chamber door sensor
Short answer
Six flashes means the chamber door temperature sensor is out of specification. Bradford White's service steps include checking the sensor and cleaning the flame arrestor screen and the burner, which points to a dirty combustion area as a common cause.
Bradford White gas heaters are built to resist igniting flammable vapors, and they watch the combustion chamber closely. Six flashes means the sensor on the chamber door is reading outside its normal range.
Bradford White changed its status codes in January 2019. Units with a serial number date code of TA or later use the newer ICON 2.0 table; older units use ICON 1.0. The first two letters of the serial number on the rating label tell you which one you have.
Common causes
Lint, dust and debris on the flame arrestor screen and burner are frequent culprits, especially in garages and laundry rooms. A damaged sensor or loose wiring can also cause it.
What to do
A technician will check the sensor's resistance, clean the ScreenLok flame arrestor and clean the burner. Keeping the area around the heater clear of lint and stored items helps prevent it.
Common questions
Can dryer lint cause 6 flashes on a Bradford White?
Yes. Lint and dust restricting the combustion area are a common cause, which is why keeping the space around the heater clean matters.
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Other Bradford White codes
| Code | Meaning |
|---|---|
| 2 flashes | Weak pilot signal (thermopile getting weak) |
| 3 flashes | Water not heating as fast as expected (ICON 1.0) |
| 4 flashes | High tank temperature |
| 5 flashes | Gas valve thermostat sensor fault |
| 6 flashes | Chamber door temperature sensor out of specification |
| 7 flashes | Gas valve electronic fault (ICON 1.0) |
| 8 flashes | Pilot stays lit with the knob off (ICON 1.0) |
| 9 flashes | Tank leak detected by accessory leak sensor |
| 10 flashes | Insufficient combustion air detected |