Basic Operation Characteristics - Harbor Point HF-25GW Installation, Operation And Maintanance Manual

HARBOR POINT WALL SPLIT DUCTLESS SYSTEMS

Basic Operation Characteristics

Problem
The unit can not be restarted just after
shut down. (RUN light is on)
Air does not blow out at starting of heat-
ing operation.
Heat pump system ceases operation in
heating mode.
Air is not blown out for 6 to 12 min, at
heating operation.
Air is not blown out at DRY operation.
Mist is blown out at COOL operation.
Noise or cracking sound.
Noise is heard (cracking sound). After a
power outage or after disconnecting the
power supply plug.
Operation can not be restarted even if
the power is restored.
Remote control signals are not received.
Moisture may form on the air outlet
grilles.
Restart is delayed for 3 minutes after shut
down to protect the unit.
Three-minute protection timer incorporated
in the microcomputer actuates automatically.
Except when power is connected, this function
does not actuate.
Air circulation is stopped to prevent blowing
cold air into the room until heat exchanger
warms up. ( 2 to 5 min )
Check to see if outdoor temperature is below
15° F. If so, operation will not resume until the
outdoor temperature rises above 17° F.
When outdoor temperature is low and
humidity is high, the unit sometimes per-
forms defrosting automatically.
Please wait. During defrosting, water or steam
may be seen coming from the outdoor unit.
Indoor fan is sometimes stopped to prevent
vapor of dehumidified moisture and save
energy .
This phenomenon sometimes occurs when
the temperature and humidity of the room
are very high. It will disappear with the lower-
ing of the temperature and humidity.
This is caused by the refrigerant that is circu-
lating inside the unit.
This is caused by heat expansion or contrac-
tion of plastics.
The memory circuit of the microcomputer is
cleared. Operate the remote controller again
to restart the operation.
Remote control signals may not be re-
ceived when signal receiver on the air con-
ditioner body is exposed to direct sunlight
or strong lighting. Interrupt the sunlight or
dim the lighting.
If the unit is operated for a long period of
time with the high humidity, moisture may
form on the air outlet grilles and drip down .
35
Cause