User manual PANASONIC U125PE1E5

[. . . ] Do not insert fingers, rods or other objects into the air inlet or outlet. Never use a flammable spray such as hair spray, lacquer or paint near the unit. Never touch the air outlet or the horizontal blades while the swing flap is in operation. Never replace a fuse with that of wrong ampere ratings or other wires when a fuse blows out. [. . . ] Press the operation mode selector button several times and select (program dry operation). Hot start In order to prevent cold air from blowing out of an indoor unit at the start of heating operation, the indoor fan is automatically stopped. Do not turn off power immediately after the unit stops, but wait for at least 5 minutes. (When using together with appliances that produce open fire, ventilate the room constantly. ) Do not place appliances that produce open fire in places exposed to the air flow from the unit or under the unit. It takes some time to heat up the room from the time the unit is started since the unit uses a hot-air circulating system to heat the entire room. If the hot air rises to the ceiling, leaving the area above the floor cold, we recommend that you use the circulator (the indoor fan for circulating air). For the following conditions, a micro computer controls the air flow direction which may be different from the display. The function of this program is to decrease the humidity in your room with minimal temperature decrease (minimal room cooling). the micro computer automatically determines temperature and fan speed (cannot be set by the remote controller). The system does not go into operation if the room temperature is low (<20°C). The system does not start immediately after the power supply is turned on. Symptom 7: The remote controller display reads "U4" or "U5" and stops, but then restarts after a few minutes This is because the remote control is intercepting noise from electric appliances other than the air conditioner. A "zeen" sound is heard immediately after the power supply is turned on. The electronic expansion valve inside an indoor unit starts working and makes the noise. A continuous low "shah" sound is heard when the system is in cooling operation or at a stop When the drain pump (optional accessories) is in operation, this noise is heard. A "pishi-pishi" squeaking sound is heard when the system stops after heating operation. Expansion and contraction of plastic parts caused by temperature change make this noise. A low "sah", "choro-choro" sound is heard while the indoor unit is stopped. In order to prevent oil and refrigerant from remaining in the system, a small amount of refrigerant is kept flowing. A continuous low hissing sound is heard when the system is in cooling or defrost operation. This is the sound of refrigerant gas flowing through both indoor and outdoor units. [. . . ] 5 years 1 year 10 years 8 years Refer to your maintenance and inspection contract for more details. However, in order to keep the unit operational as long as possible, maintenance work may be required sooner. Recommended intervals can be used for appropriate maintenance design in terms of budgetting maintenance and inspection fees. Be aware that the mentioned maintenance and replacement cycles do not relate to the warranty period of the components. [. . . ]