Toyotomi UTN-18AP User Manual page 92

Phenomenon
Cooling/Heating
effect is not good.
Odours are emitted.
Air Conditioner suddenly
turned on.
Outdoor unit has vapor.
"Water fl owing" noise.
Cracking noise.
Error Code
When air conditioner status is abnormal, temperature indicator on indoor unit
will blink to display corresponding error code. Please refer to below list for
identifi cation of error code.
Error code
Ε5, Ε8, U8, H6, H3, E1
C5, F1, F2, F0
Check for
Voltage is too low?
Filter is dirty?
Set temperature is in prop-
er range?
Door and window are
open?
Whether there is odour
source, such as furniture
and cigarette, etc?
Whether there is interfer-
ence, such as thunder,
wireless devices, etc.?
Heating mode is turned
on?
Air conditioner is turned
on or turned off just now?
Air conditioner is turned
on or turned off just now?
Troubleshooting
It can be eliminated after restarting the unit. If not,
please contact qualifi ed professional for service.
Please contact authorized qualifi ed technician.
92
Solution
Wait until the voltage re-
sumes normal.
Clean the fi lter.
Adjust temperature
proper range.
Close door and window.
• Eliminate the
source.
• Clean the fi lter.
Disconnect power,
back power, and then turn
on the unit again.
During defrosting
heating mode, it may gen-
erate vapor, which is a
normal phenomenon.
The noise is the sound of
refrigerant fl owing inside
the unit, which is a nor-
mal phenomenon.
This is the sound of friction
caused by expansion and/
or contraction of panel
or other parts due to the
change of temperature.
to
odour
put
under
GB