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Common Issues
The following problems are not a malfunction and in most situations will not require repairs.
Issue
Possible Causes
Unit does not turn
on when pressing
ON/OFF button
The Unit has a 3-minute protection feature that prevents the unit from
overloading. The unit cannot be restarted within three minutes of being
turned off.
The unit may change its setting to prevent frost from forming on the unit.
Once the temperature increases, the unit will start operating in the
previously selected mode again.
The set temperature has been reached, at which point the unit turns off the
compressor. The unit will continue operating when the temperature
fluctuates again.
The indoor unit
emits white mist
In humid regions, a large temperature difference between the room’s air
and the conditioned air can cause white mist.
Both the indoor and
outdoor units emit
white mist
When the unit restarts in HEAT mode after defrosting, white mist may be
emitted due to moisture generated from the defrosting process.
Troubleshooting
The unit changes from
COOL/HEAT mode to
FAN mode
The indoor unit makes
noises
A rushing air sound may occur when the louver resets its position.
A squeaking sound may occur after running the unit in HEAT mode due to
expansion and contraction of the unit’s plastic parts.
Both the indoor unit
and outdoor unit make
noises
Low hissing sound during operation: This is normal and is caused by refrigerant
gas flowing through both indoor and outdoor units.
Low hissing sound when the system starts, has just stopped running, or is
defrosting: This noise is normal and is caused by the refrigerant gas stopping or
changing direction.
Squeaking sound: Normal expansion and contraction of plastic and metal parts
caused by temperature changes during operation can cause squeaking noises.
SAFETY PRECAUTIONS
If ANY of the following conditions occurs, turn off your unit immediately!
•
The power cord is damaged or abnormally warm
•
You smell a burning odor
•
The unit emits loud or abnormal sounds
•
A power fuse blows or the circuit breaker frequently trips
•
Water or other objects fall into or out of the unit
DO NOT ATTEMPT TO FIX THESE YOURSELF! CONTACT AN AUTHORIZED
SERVICE PROVIDER IMMEDIATELY!
Tr
oubleshooting
Summary of Contents for YDAC-025R-09M25
Page 228: ...2 04 08 1 08 2 09 3 10 4 11 5 11 12 14...
Page 230: ...4 8 EN...
Page 232: ...6 1 2 NEC CEC 3 4 5 6 7 1 8 9 10 11 1 2 3 4 5 CO2 50 CO2 24 5...
Page 233: ...7 R32 R32 4m2 EN 3g 25 UL IEC...
Page 238: ...12 40 C 104 F 1 2 PULL 3 4 5 6 7 PULL...
Page 239: ...13 240 CL 15 4 LED 3 MANUAL CONTROL CL 2 880 nF 15 4 LED 3 MANUAL CONTROL nF...
Page 240: ...14 ON OFF 3 Squeak...
Page 241: ...15 ON OFF SILENCE SILENCE SILENCE...
Page 242: ...16 3 10 E x P x F x EH xx EL xx EC xx PH xx PL xx PC xx...
Page 244: ...18 12 4 75in 12 4 75in 15cm 5 9in 2 3m 90 55in...
Page 245: ...19...
Page 246: ...20 1 2 3m 90 55in 12cm 4 75in 12cm 4 75in 5 cm 10 22cm 11cm 2 5mm 0 2in...
Page 248: ...22 4 1 1 30 50mm 1 25 1 95in 30 50mm 1 2 1 95in 30 50mm 1 2 1 95in 2 1 PULL...
Page 249: ...23 2 3 4 5 6 7 1 2 3 15 6 4 5 6 7 8...
Page 250: ...24 5 Teflon 1 2 3 4 90 110 5 1 5 6 1 8in 3mm 7 8 9 10 11 1 40in 12 10...
Page 252: ...26 7 1 1 2 8 1 4 2 3 4 5 6 7...
Page 253: ...27 60cm 24in 30cm 12in 30cm 12in 200cm 79in 60cm 24in 1 18 90...
Page 260: ...34 10 32 8 10m 32 8ft 10m 32 8ft 7 62 m s 1500 fpm 6m 20ft 6m 20ft 6m 20ft...
Page 261: ...35 1 2 3 4 5 15 76cmHG 105 Pa 76cmHg 6 7 5 8 9 1 4 5 10 11 12 13...
Page 262: ...36 5 16 m N A 6 35 0 25 R32 12g 24g m 0 13oZ ft 9 52 0 375 R32 m 0 26oZ ft...
Page 263: ...37 0 1 A B C D...