Panasonic NA-D106X1, Service Manual

Page: 53 / 68

53
NA-D106X1
*Unable to detect the water level 150mm or
less in 5 minutes (after the initial drainage
has started during the washing process). (Water is supplied)
• Check the water leakage caused by
clogging of valve.
• Check the leakage from other section.
Press Start/Pause
button in door closed
condition.
Cleared error code
display and back to
initial position of
washing process.
U18 Drainage filter has
come off The drainage filter has come off during
operation. (Detected by the SF switch (hall
sensor U) for drainage filter.) • Check the drainage filter has not come
off. If the drainage filter has not come
off.
• Check the connector of SF switch (hall
sensor U) has not come off.
• Check the electric continuity of SF
switch.
Attach the drainage
filter properly in door
closed condition.
Cleared error code
display and resume
the operation.
H01 Malfunction of water
level (water-pressure)
sensor The input frequency from a water level
sensor to a microcomputer is out of the
specified range. • Check the connector has not come off.
• Check the contact failure of connector.
• Check the breakage of lead wire.
• Replace the water level sensor.
• Except as described above, replace the
controller unit(Power side).
• Power button off
and on again.
H04 Detection of short
circuit of power relay 1. Short circuit of power relay 1 in a
controller(Power side) is detected. • Replace the controller unit(Power side). Pull out the power
plug.
H05 Malfunction of the
memory Service check B, unable to write data to
memory. • Replace the controller unit(Power side). Power button off and
on again.
H07 Malfunction of rotation
sensor There is no input signal from the rotation
sensor during the motor ON process. • Check the contact failure of motor's
connector and breakage of lead wire.
• Replace the motor.
• Except as described above, replace the
controller unit(Power side ).
Power button off and
on again.
H09 Breakage of
communication line Unable to communicate between the
controller(Power side) and controller
(Display side) during the power ON
condition. • Check the breakage of communication
line.
• Check the contact failure of connector.
• Check the failure of the controller
(Display side) or the controller
unit(Power side ).
Pull out the power
plug and plug in
again.
H10 Malfunction of Warm
air thermistor. Open circuit or short circuit is caused in the
Warm air thermistor (TH3).
• Open condition : more than 206k

• Short condition : less than 96

• Check the connector has not come off.
• Replace the thermistor (TH3). Power button off and
on again.
H11 Malfunction of Exhaust
air thermistor. Open circuit or short circuit is caused in the
Exhaust air thermistor (TH1).
• Open condition : more than 206k

• Short condition : less than 96

• Check the connector has not come off.
• Replace the thermistor (TH1). Power button off and
on again.
H14 Abnormal differential
temperature of Inlet air
and Exhaust air
temperature thermistor Mean differential temperature between
Exhaust air thermistor (TH1) and Inlet air
sensor (TH2) exceed more than 30 bit. Thermistor calibration has not completed.
• Cooling down body sufficiently, and
have the calibration again.
Power button off and
on again.
H15 Malfunction of Inlet air
thermistor. Open circuit or short circuit is caused in the
Inlet air thermistor (TH2).
• Open condition : more than 206k
Ω
• Short condition : less than 96
Ω
• Check the connector has not come off.
• Replace the thermistor (TH2). • Power button off
and on again.
H17 Malfunction of Warm
water thermistor. Open circuit or short circuit is caused in the
Warm water thermistor.
• Open condition : more than 206k
Ω
• Short condition : less than 94
Ω
• Check the contact failure of connector.
• Check the resistance of thermistor as
single item. If the open circuit or short
circuit is caused, replace the sensor.
• If there is no error on the sensor, check
the breakage of lead wire.
Power button off and
on again.
H20 Warm water thermistor
has come off. Unable to detect the temperature rise in 10
minutes from 1 minute after water supply
agitation process has started during the
washing process.
• Error data is memorized only.
• Error is not displayed.
• Check the position displacement of
warm water sensor.
• Check the blowout of the thermal fuse
and current fuse.
• Check the connector has not come off.
• Check the water heater and breakage of
lead wire.
Continued the
operation and
unnecessary to clear
the error.
H21 Overflow detection Water level sensor detects an overflow
water level for longer than the specified
time during the washing rinse process and
preset timer standby.
*The Drain pump for drainage is operated
and water is drained. • Replace the water supply valve.
• Replace the controller unit(Power side).
(If the feeding valve cannot be stopped
by the controller unit output
continuously on.)
Power button off and
on again.
*The warning buzzer
beeps.
Display Contents Detection contents Check point Method to clear error