12
TROUBLESHOOTING
TROUBLESHOOTING
Symptom
Symptom
Cause
Cause
Mist emerges from indoor unit.
• Condensation effect due to cooling process.
Water
fl
owing sound during operation.
• Refrigerant
fl
ow inside the unit.
The room has a peculiar odour.
• This may be due to damp smell emitted by the wall, carpet, furniture or
clothing.
Indoor fan stops occasionally during automatic
fan speed setting.
• This helps to remove the surrounding odours.
Operation is delayed a few minutes after
restart.
• The delay is a protection to the unit’s compressor.
Outdoor unit emits water/steam.
• Condensation or evaporation occurs on pipes.
Timer indicator is always on.
• The timer setting repeats daily once set.
Indoor fan stops occasionally during heating
operation.
• To avoid unintended cooling effect.
Cracking sound can be heard during
operation.
• Changes of temperature cause the expansion/contraction of the unit.
Unit switch to FAN operation and air become
humid.
• This happens when the room temperature reaches the set temperature,
operation switches to FAN mode and the humidity increase.
Outdoor unit emits noise during heating
operation.
• This is due to changes in
fl
ow of refrigerant gas when operation stops
and starts.
Operation does not stop immediately after
pressed the OFF/ON button.
• Discharging heat is in process. Operation will stops automatically after
approximately 60 seconds.
Operation stops occasionally. (“DEFROST”
appears on the remote control display)
• The unit is in defrosting mode, and the melted frost is drained from the
outdoor unit.
Air
fl
ow does not start immediately after
operation is started. (“PRE HEAT” appears on
the remote control display)
• The unit is warming up to provide warm air.
Operation starts after power resumes.
• Auto restart is in function and operates under previous setting.
During dry mode, cold air blow out.
• The unit is running cooling operation with low fan speed to dehumidify
the room.
Fan speed change occasionally during heating
mode.
• The room temperature has reached the remote control setting. When the
room temperature drops again, the fan speed will resume to the remote
control settings.
Outdoor unit emits steam during heating
mode.
• This is due to defrost operation happens at the heat exchanger.
The following symptoms do not indicate malfunction.
The following symptoms do not indicate malfunction.
Summary of Contents for U-10EA1EU-10EA1E8
Page 86: ...86 I I Panasonic 86 87 88 89 90 91 92 94 95 96 97 H...
Page 87: ...87 E H Ni Cd ELCB Earth Leakage Circuit Breaker RCD Residual Current Device ELCB...
Page 88: ...88 C 32 43 21 5 27 24 16 15 5 C 21 C 80 2002 96 E 2006 66 E Pb...
Page 89: ...89 E B B A A stand by C C...
Page 96: ...96 FAN FAN OFF ON 60 DEFROST PRE HEAT...
Page 97: ...97 E TIMER OFF TIMER ON TIMER Auto OFF ON 15 8 C 14 C Heat 2 3...
Page 98: ...98 Panasonic 98 99 100 101 102 103 104 106 107 108 109...
Page 99: ...99 Ni Cd ELCB RCD ELCB...
Page 100: ...100 C 32 43 21 5 27 24 16 15 5 C 21 C 80 3 2002 96 EC 2006 66 EC Pb...
Page 101: ...101 A A B B C C...
Page 108: ...108 OFF ON 60 DEFROST PRE HEAT...
Page 109: ...109 OFF ON Auto OFF ON 15 8 C 14 C 2 3...
Page 110: ...MEMO MEMO...
Page 111: ...MEMO MEMO...
