Bosch Climate 5000 SCI 18 CAS/ OU- OUE Owner's Manual page 8

Troubleshooting
Problem Possible Causes
Poor cooling The temperature
performance setting may be higher
than the ambient 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 gen-
erated by sunlight
Low refrigerant charge
due to leak or long-
term use
The unit There is too much or
starts and too little refrigerant in
stops fre- the system
quently
There is air, incom-
pressible gas or foreign
material in the refriger-
ation system.
System circuit is
blocked
The compressor is
broken
The voltage is too high
or too low
Poor heating The outdoor tempera-
performance ture is lower than 7 °C
Cold air is entering
through doors and
windows
Low refrigerant due to
leak or long-term use
Table 3.
8
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
Check for leaks, re-seal
if necessary and top off
refrigerant
Check for leaks and
recharge the system
with refrigerant
Evacuate and recharge
the system with
refrigerant
Determine which
circuit is blocked and
replace the mal-
functioning piece of
equipment
Replace the compres-
sor
Install a manostat to
regulate the voltage
Check for leaks and
refill the system with
refrigerant
Make sure that all
doors and windows are
closed during use
Check for leaks, re-seal
if necessary and top off
refrigerant
Climate 5000 SCI – 6720887397 (2018/04)