Use and Care Manual

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Bosch Climate 5000 AA Series Inverter Multi Split-Type Air Conditioner/ Heat Pump Installation Manual
07.2017 | Bosch Thermotechnology Corp.Data subject to change
13.2 Troubleshooting
When troubles occur, please check the following points before contacting a repair
company.
Problem Possible Causes Solution
Poor Cooling Performance
Temperature setting may be higher than ambient room
temperature
Lower the temperature setting
The heat exchanger on the indoor or outdoor unit is dirty Clean the aff ected heat exchanger
The air fi lter is dirty Remove the fi lter 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
Too many sources of heat in the room (people, computers,
electronics, etc.)
Reduce amount of heat sources
Low refrigerant due to leak or long-term use Check for leaks, re-seal if necessary and top off refrigerant
SILENCE function is activated
SILENCE function can lower product performance by reducing
operating frequency. Turn off SILENCE function.
The unit is not working
Power failure Wait for the power to be restored
The power is turned off Turn on the power
The fuse is burned out Replace the fuse
Remote control batteries are dead Replace batteries
The Unit’s 3-minute protection has been activated Wait three minutes after restarting the unit
Timer is activated Turn timer off
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.
Incompressible gas or moisture has entered the system. Evacuate and recharge the system with refrigerant
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) Use auxiliary heating device
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
Indicator lamps continue fl ashing
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.
"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.