Bosch Climate 5000 AA Series Installation Manual page 26

2 6 | Bosch Climate 5000 AA Series Inverter Multi Split-Type Air Conditioner/ Heat Pump
13.2 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 frequently
Poor heating performance
Indicator lamps continue fl ashing
"Error code appears in the window
display of indoor unit:
• E0, E1, E2...
• P1, P2, P3...
• F1, F2, F3..."
Table 12
If your problem persists after performing the checks and diagnostics
above, turn off your unit immediately and contact your nearest customer
service center.
Data subject to change
Possible Causes
Temperature setting may be higher than ambient room
temperature
The heat exchanger on the indoor or outdoor unit is dirty
The air fi lter 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
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 lower than 7°C (44.5°F)
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 fl ash 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 center.
Solution
Lower the temperature setting
Clean the aff ected heat exchanger
Remove the fi lter 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 off 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 refrigerant.
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 refrigerant
01.2017 | Bosch Thermotechnology Corp.
Installation Manual