Rinnai 21
Multi Split Type AC OM
TROUBLESHOOTING TIPS
When problems occur, please check the following possible causes before contacting a repair company.
PROBLEM
POSSIBLE CAUSES
SOLUTION
The air conditioner stops
running
Power failure
Wait for the power to be restored
The power switch is off
Turn on the power
The fuse is burned out
Replace the fuse
Remote control batteries are dead
Replace the remote control batteries
The unit’s 3-minute protection has
been activated
Wait three minutes after restarting the
unit
Poor heating performance Temperature setting may be higher
than the ambient room temperature
Lower the temperature setting
The heat exchanger on the indoor or
outdoor unit is dirty
Clean the affected heat exchanger
The air filter is dirty
Remove the filter and clean it according
to instructions
The air inlet or outlet of either unit is
blocked
Turn the unit off, remove the obstruction
and turn it back on
Doors and windows are open
Make sure that all doors and windows
are closed while operating the unit
Excessive heat is generated by
sunlight
Close windows and curtains during
periods of high heat or bright sunshine
Low refrigerant due to leak or long-
term use
Check for leaks, re-seal if necessary and
top off refrigerant
The unit starts and stops
frequently
There’s too much or too little
refrigerant in the system
Check for leaks and recharge the system
with refrigerant
There is air, incompressible gas or
foreign material in the refrigeration
system.
Evacuate and recharge the system with
refrigerant
System circuit is blocked
Determine which circuit is blocked and
replace the malfunctioning piece of
equipment
The compressor is broken
Replace the compressor
The voltage is too high or too low
Install a manostat to regulate the voltage
Poor heating performance
The outdoor temperature is lower than
7°C (44.5°F)
Check for leaks and recharge the system
with refrigerant
Cold air is entering through doors and
windows
Make sure that all doors and windows
are closed during use
Low refrigerant due to leak or long-
term use
Check for leaks, re-seal if necessary and
top off refrigerant
CARE & MAINTENANCE
Содержание CIN020MB
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