Panasonic MC-BJ870-S149 Service Manual page 19

Confirmation code K: The "DUST SENSOR" lamp does not light up.
Confirmation code L: The "DUST SENSOR" lamp remains lit up and does not go out.
Symptom No.
1 P.C.B D unit
2 Lead wire A assy
3 P.C.B K unit
4 P.C.B A unit
Confirmation code M: The "CHECK" lamp is lit up or blinking, even though there is very little dust in the dust
box.
*The "CHECK" lamp will light up when the cleaner is operating in "HIGH" mode, but will*The "CHECK" lamp
will light up when the cleaner is operating in "HIGH" mode, but will not light up during operation in "AUTO"
mode. not light up during operation in "AUTO" mode.
Symptom No.
1 Dust box (each filter)
2 Extension wand
3 Connector pipe
4 P.C.B K unit
5 Motor assy
6 P.C.B A unit
Confirmation code N: Even though the dust box is full, the "CHECK" lamp does not light up.
*The "CHECK" lamp will light up when the cleaner is operating in "HIGH" mode, but will*The "CHECK" lamp
will light up when the cleaner is operating in "HIGH" mode, but will not light up during operation in "AUTO"
mode. not light up during operation in "AUTO" mode.
Symptom No.
1 P.C.B K unit
2 Motor assy
3 P.C.B A unit
Confirmation code O: The suction is weak.
Symptom No.
1 Extension wand
2 Connector pipe
3 Lithium-ion battery
4 Motor assy
5 P.C.B A unit
Confirmation code P: The battery does not last long.
Symptom No.
1 Lithium-ion battery
2 Motor assy
3 P.C.B A unit
Confirmation code Q: The battery does not recharge. (The battery status indicator lamp lights up.)
Confirmation code R: The battery does not recharge. (The battery status indicator lamp blinks rapidly.)
Confirmation code S: The battery does not recharge. (The battery status indicator lamp does not light up.)
Symptom No.
1 Charging adapter
2 Lithium-ion battery
3 P.C.B K unit
4 P.C.B A unit
Check point
Check point
Check point
Check point
Check point
Check point
19
Reference
6.3.3.5.Checking the dust sensor (P.C.B D unit)
6.3.3.6.Checking Lead wire A assy
6.3.3.4.Checking the P.C.B K unit
6.3.3.2.Checking the P.C.B A unit
Reference
6.3.3.7.Checking the dust box
6.3.4.5.Checking the Extension wand
6.3.4.3.Checking the Floor nozzle pipe unit
6.3.3.4.Checking the P.C.B K unit
6.3.3.1.Checking the Motor assy
6.3.3.2.Checking the P.C.B A unit
Reference
6.3.3.4.Checking the P.C.B K unit
6.3.3.1.Checking the Motor assy
6.3.3.2.Checking the P.C.B A unit
Reference
6.3.4.5.Checking the Extension wand
6.3.4.3.Checking the Floor nozzle pipe unit
6.3.2.1.Checking the Lithium-ion battery
6.3.3.1.Checking the Motor assy
6.3.3.2.Checking the P.C.B A unit
Reference
6.3.2.1.Checking the Lithium-ion battery
6.3.3.1.Checking the Motor assy
6.3.3.2.Checking the P.C.B A unit
Reference
6.3.1.1.Checking the charging adapter
6.3.2.1.Checking the Lithium-ion battery
6.3.3.4.Checking the P.C.B K unit
6.3.3.2.Checking the P.C.B A unit