Bosch RAC 2,6-2 IBW Owner's Manual page 10

Troubleshooting
Troubleshooting
When troubles occur, please check the following points before contacting a repair company.
Problem
Poor Cooling Performance
The unit is not working
The unit starts and stops fre-
quently
Poor heating performance
Indicator lamps continue flashing
Error code appears in the window
display of indoor unit:
• E0, E1, E2...
• P1, P2, P3...
• F1, F2, F3...
Table 4.
NOTE:
If your problem persists after performing the checks and diagnostics above, isolate your unit immediately and contact an authorized service centre.
10
Possible Causes
Temperature setting may be higher than ambi-
ent room temperature
The heat exchanger on the indoor or outdoor
unit is dirty
The air filter is dirty
The air inlet or outlet of either unit is blocked
Doors and windows are open
Excessive heat is generated by sunlight
Too many sources of heat in the room (people,
computers, electronics, etc.)
Low refrigerant due to leak or long-term use
SILENCE function is activated (optional
function)
Power failure
The power is turned off
The fuse is burned out
Remote control batteries are dead
The unit's 3-minute protection has been
activated
Timer is activated
There's too much or too little refrigerant in the
system
Incompressible gas or moisture has entered the
system.
The compressor is broken
The voltage is too high or too low
The outdoor temperature is extremely low
Cold air is entering through doors and windows
Low refrigerant due to leak or long-term use
The unit may stop operation or continue to run safely. If the indicator lamps continue to flash or error codes
appear, wait for about 10 minutes. The problem may resolve itself.
If not, disconnect the power, then connect it again. Turn the unit on.
If the problem persists, disconnect the power and contact your nearest customer service centre.
Solution
Lower the temperature setting
Clean the affected heat exchanger
Remove the filter and clean it according to instructions
Turn the unit off, remove the obstruction and turn it
back on
Make sure that all doors and windows are closed while
operating the unit
Close windows and curtains during periods of high heat
or bright sunshine
Reduce amount of heat sources
Check for leaks, re-seal if necessary and top up refrigerant
SILENCE function can lower product performance
by reducing operating frequency. Turn off SILENCE
function.
Wait for the power to be restored
Turn on the power
Replace the fuse
Replace batteries
Wait three minutes after restarting the unit
Turn timer off
Check for leaks and recharge the system with refriger-
ant.
Evacuate and recharge the
system with refrigerant
Replace the compressor
Install a manostat to regulate the voltage
Use auxiliary heating device
Make sure that all doors and windows are closed during
use
Check for leaks, re-seal if necessary and top off refrig-
erant
Climate 5000 – 6720886922 (2019/12)