Symptom-Based Troubleshooting; Indoor Unit Overall - Daikin SkyAir RZR-TA Series Service Manual

Symptom-based Troubleshooting

2. Symptom-based Troubleshooting

2.1

Indoor Unit Overall

Symptom
1 The system does not start operation at all.
2 The system starts operation but makes an
immediate stop.
3 The system does not cool or heat air well.
200
Supposed Cause
Blowout of fuse(s)
Cutout of breaker(s)
Power failure
The connector loose or not fully
plugged in
Blocked air inlet or outlet of
indoor or outdoor unit
Clogged air filter(s)
Blocked air inlet or outlet of
indoor or outdoor unit
Clogged air filter(s)
Enclosed outdoor unit(s)
Improper set temperature
Airflow rate set to LOW
Improper direction of air
diffusion
Open window(s) or door(s)
In cooling
Direct sunlight received
In cooling
Too many persons staying in a
room
In cooling
Too many heat sources (e.g.
OA equipment) located in a
room
SiUS281811EA
Countermeasure
Turn OFF the power supply and
then replace the fuse(s).
• If the knob of any breaker is in
its OFF position, turn ON the
power supply.
• If the knob of any circuit
breaker is in its tripped position,
do not turn ON the power
supply.
ON
Knob
Tripped
OFF
Circuit breaker
After the power failure is reset,
restart the system.
Turn off the power supply to
verify the connection of the
connector.
Remove obstacle(s).
Clean the air filter(s).
Remove obstacle(s).
Clean the air filter(s).
Remove the enclosure.
Set the temperature to a proper
degree.
Set it to a proper airflow rate.
Set it to a proper direction.
Shut it tightly.
Hang curtains or shades on
windows.
The model must be selected to
match the air conditioning load.
Part 6 Service Diagnosis