Troubleshooting Tips - Bosch Climate 5000 Series Installation Instructions Manual

14.2 Troubleshooting Tips

When a problem occurs, please check the following points before contacting a
repair company.
Problem Possible Causes
Power failure
The power switch is off
The unit is
not working
Check remote control batteries
The unit's 3-minute anti-short cycle has been activated
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
Poor cooling
performance
Doors and windows are open
Excessive heat is generated by sunlight
Low refrigerant due to leak or long-term use
There's too much or too little refrigerant in the system
There is air, incompressible gas or foreign material in the
The unit refrigeration system.
starts
System circuit is blocked
and stops
frequently
The compressor is broken
The voltage is too high or too low
Cold air is entering through doors and windows
Poor heating
performance
Low refrigerant due to leak or long-term use
Table 14
Bosch Climate 5000 Series Multi Zone Ductless Air Conditioner / Heat Pump (06.2022)
Solution
Wait for the power to be restored
Turn on the power
Replace the remote control batteries
Wait three minutes after restarting the unit
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
Check for leaks, repair if necessary and top off refrigerant
Check system refrigerant operation. Ensure charge is per specifi cation
Evacuate and recharge the system with refrigerant per specifi cation
Determine which circuit is blocked and replace the malfunctioning piece of
equipment
Replace the compressor
Install a voltage regulator to regulate the voltage
Make sure that all doors and windows are closed during use
Check for leaks, repair if necessary and top off refrigerant
Installation Instructions
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