86
PB
TROUBLESHOOTING
Basic Troubleshooting
Malfunction
Possible Reasons
Solution
Not cooling/heating adequately
Something is blocking the indoor/out-
door air outlet.
Make sure that there are no obstacles
at the indoor/outdoor air outlet.
Make sure that the grill is suitable for
the unit, inappropriate grill will cause
the compressor to fault; make sure that
the grill has more than 70% .
Set unsuitable temperature.
Set higher/lower temperature by the
control board. NOTE: temperature set-
ting restriction will restrict the setting
temperature. See the ADVANCED SET-
TINGS section.
Indoor air filter is dirty.
Should clean the filter at least every
month.
Room is hot/cold.
Let unit run a little longer that room
temperature will be lower/higher.
Heat leakage between indoor and
outdoor.
Block the leakage place.
Indoor coil not cold/heat.
Charge the refrigerant.
Unit has noise
"Some moving parts of the unit are
loose causing bad vibration.
Something in the air way."
Make sure that all moving parts are
assembled well, and nothing is in the
air way.
Bad smell when heating
The dust on the E-heater is heating.
The bad smell will disappear a little
later.
Outlet temperature is not always cool
-
ing/heating
Outlet temperature is not high enough
when heating by heat pump.
When outdoor ambient temp is low,
the heat pump will not be able to offer
enough heat. Soon after that, the E-
heater will come on to heat.
Fan stops when cooling/heating.
It is normal when the CONSTANT FAN
is OFF. You can enable the CONSTANT
FAN.
Water dripping outdoors.
Drain pipe kit not installed.
Install the drain pipe kit.
Water dripping indoors.
Wall sleeve is not installed correctly.
Install the wall sleeve according to the
installation manual.
Indoor coil freeze
Outdoor temperature is too low in cool
-
ing mode.
When outdoor temperature is drop to
55°F (12.8°) or below, it will cause that
indoor coil to freeze. Open the fresh air
door, and running at fan mode.
Filter is dirty.
Clean the filter to recover the normal
air flow
Figure 711
Summary of Contents for FRESHAIRE PVH09K3FA
Page 98: ...98 WIRING DIAGRAMS Figure 801...
