Daikin FTXZ25NV1B Operation Manual page 46

Troubleshooting (for service personnel)
CLEANING FILTER operation
Case
CLEANING FILTER operation does
not function.
CLEANING FILTER operation is
long.
CLEANING FILTER operation does
not stop.
[MOLD PROOF / CLEANING
FILTER lamp is off]
The air fi lter gets stuck during
CLEANING FILTER operation.
A large noise occurs in CLEANING
FILTER operation.
The air fi lter is still dirty even after
CLEANING FILTER operation is
performed.
Others
Case
Cold air comes out of the air
conditioner when "SARARA" DRY
operation is started.
Warm air comes out of the air
conditioner during "URURU"
HUMIDIFY operation.
The fl aps do not close when
operation is stopped.
The air conditioner suddenly starts
showing strange behaviour during
operation.
Notes on operating conditions
• The air conditioner always consumes a small amount of electricity even while it is not operating.
• If the operation is continued under any conditions other than the table below,
− A safety device may activate to stop the operation.
− Dew may form on the indoor unit and drip from it when COOLING or "SARARA" DRY operation is selected.
Outdoor temperature
Indoor temperature
Indoor humidity
45
• To protect the air fi lters, CLEANING FILTER operation is not performed when the indoor
temperature is 10°C or lower.
• This happens when the MOLD PROOF / CLEANING FILTER lamp is blinking. Clean the
dust box and reset the dust box cleaning indicator.
• This is to protect the air conditioner.
After humidifying or ventilating operation is stopped, CLEANING FILTER operation is not
performed until the humidifying fan stops. Wait for about 15 minutes.
„ After the operation has been stopped manually
• The air fi lter is moving back to the normal position. Wait for up to about 3 minutes.
• Check to see whether the fi lter section of the air fi lter is not deformed.
• Check to see whether the air fi lter, photocatalytic air-purifying and deodorising fi lter, and
dust box are properly attached.
If the fi lter section of the air fi lter is deformed, consult the service shop.
• Is there too much dust in the dust box?
• Grease and tar from tobacco may not be removed completely. Clean the air fi lter.
• This is to quickly reduce the humidity.
• The air conditioner may perform weak HEATING operation when the indoor temperature
becomes low.
• Did anyone touch the fl aps while the air conditioner is in operation?
Restart operation and stop it again to properly close the fl aps.
• The air conditioner may malfunction due to lightning or radio.
If the air conditioner malfunctions, turn off the power with the circuit breaker and restart the
operation with the remote controller.
COOLING "SARARA" DRY
–10-43°C 18-42°C
18-32°C 18-30°C
80% max. 80% max.
Description / where to check
 Page 29
 Page 37
 Page 37 - 39
 Page 37
Description / where to check
HEATING
–20-24°C
10-30°C
70% max.
 Page 38
"URURU" HUMIDIFY
–10-24°C
12-30°C
70% max.