Bradford White EF60T125 Service Manual page 35

Serial Numbers including and AFTER
GB13006174 and ALL EFR models
(Excluding EF100T399 model series).
IMPORTANT NOTE: This procedure assumes a cool tank
Condition: Water Heater Not Operating
Display shows error code "32" ( Sensor Reading
Faulty)
Unplug or disconnect electrical power to the water heater
Check continuity of wire harness to sensor. Resistance of harness should
be close to 0 ohms. Replace wire harness if high resistance is measured
(over 0.5 ohms) Check wires for intermittent connections, shorts, frayed
insulation. Replace if necessary
If wire harness is O.K., check sensor resistance detailed in
"Appendix - A: sensor resistance at various temperatures" at the end
of the thermostat testing and replacement section. Replace sensor if
needed.
Turn power ON to water heater.
Run water heater through heating cycle and verify proper operation.
Sensor temperature can be viewed when burner shuts off (see
section on viewing the display in "Service Mode").
Condition: Water Heater Not Operating
Display shows error code "65"
High Water Temperature (over 200 °F)
WARNING
Do not reset the display from the hard lockout
state without correcting the cause of the
overheating condition
Turn power "OFF".
Draw water to cool tank below 120 °F
Check sensor. Sensor is held in place with a clip fastened to the well
(see photo). Check sensor wire for potential damage or breaks in the
wire insulation. Is the sensor fully inserted into the well?
120 volt potential exposure. Use
caution making voltage checks
to avoid personal injury.
Use caution not to damage
connectors when making voltage
measurements or jumping
If sensor clip is damaged
N
replace clip. Replace
sensor if damaged.
Check Sensor Resistance
Y
(See Sensor Resistance
Testing, following section)
WARNING
CAUTION
terminals
Checking continuity of
sensor (disconnected
at Control Board)
Sensor shown fully
inserted into well
Sensor clip shown
installed properly
Continued on next
page
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