Klimaire KTHM015-E5H2 PTAC Installation Manual - Manual (Page 11)

10
TROUBLESHOOTING
SOLUTONS POSSIBLE CAUSES
UNIT DOES NOT START
Unit ma y have becom e unp lugged
Fuse may have blown
Circuit breaker may have bee n tripped
Unit ma y be off
Unit ma y be in a protection mode.
Check tha t plug is plugged securely in wall receptacle.
Plug has a test/reset button on it.M ake sure that the plug has
not tripped.
Replace the fuse.See N ote 1.
Reset circuit breaker.See Note 1.
Turn unit on (bottom right button on keypad).
Note:
UNIT NOT COOLING/HEATING ROOM
Unit air discharge section is blocked
Tem perature setting is not high or low
enough
Setpoint limits may not allow the
unit to heat or cool the room to the
temperature desired. Check section on
dipswitch settings.
Unit air filters are dirty.
Roo m is excessively hot or cold when
unit is started.
Vent door left open.
Unit ma y be in a protection mode.
Comp ressor is in time delay.
Note:
Make sure tha t curtains,blinds or furniture are not restricting or
blocking unit airflow.
Reset to a lower or higher tem perature setting.
Remove and clean filters.
Allow sufficient amount of time for unit to hea t or cool the room.Start
hea ting or coo ling ea rly before outdoo r temperature,cooking heat or
gatherings of people make room uncomfortable.
Close vent door.
Check dipswitch settings for de sired com fort.
Wait approximately 3 m inutes for com pressor to start.
DISPLAY HAS STRANGE NUMBERS/
CHARACTERS ON IT The un it may be in a protection mode.
The un it may be set for C (instea d of F).
O O
UNIT MAKING NOISES Clicking,gurging and whooshing noises are normal during operation
of unit.
WATER DRIPPING OUTSIDE If a drain kit has not been installed,condensation runoff during very
hot and humid weather is normal.See Note 2.If a drain kit has been
installed and is connected to a drain system,che ck gaskets and
fittings around drain for leaks and plugs.
WATER DRIPPING INSIDE
Wall sle eve is not installed le vel
Wall sleeve must be installed level for proper drainag e of
condensation .Check that installation is level and m ake any
necessary adjustments.
ICE OR FROST FORMS ON INDOOR
COIL
L ow outdoo r temp erature
D irty filters
When outdoor temperature is approximately 55OF or below,frost
may form on the indoor coil when unit is in Cooling mode.Switch unit
to FAN operation until ice or frost melts.
Remove and clean filters.
COMPRESSOR PROTECTION
Power m ay have cycled,so comp ressor
is in a restart p rotection.
Random Compressor restart-
Compressor Protection-
Whenever the unit is plugged in,or
power has been restarted,a random com pressor restart will occur.
After a power outage ,the compressor will restart after approximately
3 m inu tes.
To prevent short cycling of the compressor,
there is a random startup delay of 3 m inutes and a minim um
compressor run time of 3 m inutes.
NOTES:
1.If circuit breaker is trippe d or fuse is blown more tha n once,contact a qua lifie d electrician.
2.If unit is installed where condensation drainag e could drip in an undesirable location,an accessory drain kit
shou ld be installed and connected to drain system.