Daikin FTXZ25NV1B Service Manual page 134

Operation Manual
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 filter gets stuck during
CLEANING FILTER operation.
A large noise occurs in CLEANING
FILTER operation.
The air filter 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 flaps 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
119
• To protect the air filters, 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 filter is moving back to the normal position. Wait for up to about 3 minutes.
• Check to see whether the filter section of the air filter is not deformed.
• Check to see whether the air filter, photocatalytic air-purifying and deodorising filter, and
dust box are properly attached.
If the filter section of the air filter 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 filter.
• 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 flaps while the air conditioner is in operation?
Restart operation and stop it again to properly close the flaps.
• 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.
SiMT041311E
Page 38
"URURU" HUMIDIFY
–10-24˚C
12-30˚C
70% max.
Installation / Operation Manual