Onkar Sharma
Member
Hi Stuff,
Sorry. Just saw this. Will do this tonight and will post the results.
Thanks.
Sorry. Just saw this. Will do this tonight and will post the results.
Thanks.
Will Do. I am going to label each wire and pair it with the new board in my mind before I take it all apart.Good luck. Take a few more pictures for yourself to help to verify wiring connections afterwards.
Good luck. Take a few more pictures for yourself to help to verify wiring connections afterwards.
Thanks Stuff. I already cleaned the flame sensor. From the window it looked like it is in the path of flame.Check the wire connection.
From https://www.emerson.com/documents/commercial-residential/1547324.pdf
Alternate slow flash
External lockout
(retries)
Failure to sense flame is often caused by carbon deposits on
the flame sensor, a disconnected or shorted flame sensor
lead or a poorly grounded furnace. Carbon deposits can be
cleaned with emery cloth. Verify sensor is not contacting the
burner and is located in a good position to sense flame.
Ignitor must be positioned to light the gas immediately when
the valve opens. If the ignitor has been replaced, verify hot
spot position has not changed.
Check sensor lead for shorting and verify furnace is
grounded properly.
I don't know if the flame sensor is bad. Please advise.Check the wire connection.
From https://www.emerson.com/documents/commercial-residential/1547324.pdf
Alternate slow flash
External lockout
(retries)
Failure to sense flame is often caused by carbon deposits on
the flame sensor, a disconnected or shorted flame sensor
lead or a poorly grounded furnace. Carbon deposits can be
cleaned with emery cloth. Verify sensor is not contacting the
burner and is located in a good position to sense flame.
Ignitor must be positioned to light the gas immediately when
the valve opens. If the ignitor has been replaced, verify hot
spot position has not changed.
Check sensor lead for shorting and verify furnace is
grounded properly.
Just check the wire connection. It is going from Flame Sensor to The F.S. connection on control board. I already cleaned the flame sensor.Check the wire connection.
From https://www.emerson.com/documents/commercial-residential/1547324.pdf
Alternate slow flash
External lockout
(retries)
Failure to sense flame is often caused by carbon deposits on
the flame sensor, a disconnected or shorted flame sensor
lead or a poorly grounded furnace. Carbon deposits can be
cleaned with emery cloth. Verify sensor is not contacting the
burner and is located in a good position to sense flame.
Ignitor must be positioned to light the gas immediately when
the valve opens. If the ignitor has been replaced, verify hot
spot position has not changed.
Check sensor lead for shorting and verify furnace is
grounded properly.
Flame sensor is just a metal rod with an insulated base. Measure between the flame sensor wire lead feeding it and ground - should be infinity. Measure between wire and rod - should be zero across all of it. (clean it with steel wool, not chemicals which can coat it) Measure between the burner nozzle and ground - should be zero. Sometimes the FS is bent or out of alignment so make sure that you see it in the flame path.
Flame sensor is just a metal rod with an insulated base. Measure between the flame sensor wire lead feeding it and ground - should be infinity. Measure between wire and rod - should be zero across all of it. (clean it with steel wool, not chemicals which can coat it) Measure between the burner nozzle and ground - should be zero. Sometimes the FS is bent or out of alignment so make sure that you see it in the flame path.
Flame sensor is just a metal rod with an insulated base. Measure between the flame sensor wire lead feeding it and ground - should be infinity. Measure between wire and rod - should be zero across all of it. (clean it with steel wool, not chemicals which can coat it) Measure between the burner nozzle and ground - should be zero. Sometimes the FS is bent or out of alignment so make sure that you see it in the flame path.
Hi Stuff,Just check the wire connection. It is going from Flame Sensor to The F.S. connection on control board. I already cleaned the flame sensor.
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