Troubleshooting - Daikin FTX20KV1B Operation Manual

When the Need Arises

Troubleshooting

Before making an inquiry or a request for repair, please check the following.
If the problem persists, consult your dealer.
Not a problem
This case is not a problem.
The air conditioner does not operate
Case
OPERATION lamp is off.
OPERATION lamp is blinking.
The air conditioner suddenly stops operating
Case
OPERATION lamp is on.
OPERATION lamp is blinking.
The air conditioner does not stop operating
Case
The air conditioner continues
operating even after operation is
stopped.
The room does not cool down / warm up
Case
Air does not come out.
Air does not come out /
Air comes out.
Air comes out.
27
Description / what to check
• Has the circuit breaker been tripped or the fuse blown?
• Is there a power failure?
• Are batteries set in the remote controller?
• Turn off the power with the circuit breaker and restart operation with the remote controller.
If the OPERATION lamp is still blinking, check the error code and consult your dealer.
Description / what to check
• To protect the system, the air conditioner may stop operating after sudden large voltage
fluctuations. It automatically resumes operation in about 3 minutes.
• Is there anything blocking the air inlet or air outlet of the indoor unit or outdoor unit?
Stop operation and after turning off the circuit breaker, remove the obstruction. Then restart
operation with the remote controller. If the OPERATION lamp is still blinking, check the error
code and consult your dealer.
Description / what to check
„ Immediately after the air conditioner is stopped
• The outdoor unit fan continues rotating for about another 1 minute to protect the system.
„ While the air conditioner is not in operation
• When the outdoor temperature is high, the outdoor unit fan may start rotating to protect
the system.
Description / what to check
„ In HEAT operation
• The air conditioner is warming up. Wait for about 1 to 4 minutes.
• During defrosting operation, hot air does not flow out of the indoor unit.
„ Is the airflow rate setting appropriate?
• Is the airflow rate setting low, such as "Indoor unit quiet" or "Airflow rate 1"? Increase the
airflow rate setting.
„ Is the set temperature appropriate?
„ Is the adjustment of the airflow direction appropriate?
• Is there any furniture directly under or beside the indoor unit?
• Is the air conditioner in ECONO operation?
• Are the air filters dirty?
• Is there anything blocking the air inlet or air outlet of the indoor unit or outdoor unit?
• Is a window or door open?
• Is an exhaust fan turning?
Check
Please check again before requesting
repairs.
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