YMGI PTAC Series, Инструкции по установке и Руководство пользователя

Страница: 41 / 52

YMGI
•
Your Modern Green Idea
41
TROUBLESHOOTING
POSSIBLE CAUSES SOLUTIONS
UNIT DOES NOT START

Unit may have become unplugged

Fuse may have blown

Circuit breaker may have been tripped

Unit may be off or in wall thermostat mode.
Check section on dipswitch settings to verify
dipswitches are set properly.

Unit may be in a protection or diagnostic failure
mode.

See section on diagnostic codes.

Check that plug is plugged securely in wall receptacle.

Note: Plug has a test/reset button on it. Make sure that the
plug has not tripped.

Replace the fuse.

Reset circuit breaker.

Turn unit on (bottom right button on keypad).
DISPLAY HAS STRANGE
NUMBERS/CHARACTERS
ON IT

The unit may be in a diagnostic condition. Check diagnostic
codes --- checking Control section to determine if unit has had
a failure.

The unit may be set for ° C (instead of ° F), see the

SENIOR OPERATION .
UNIT MAKING NOISES
• Clicking, gurgling and whooshing noises are normal during
operation of unit.
UNIT NOT COOLING / HEATING ROOM
• Unit air discharge section is blocked
•
Temperature setting is not high or low enough
• Note: Set point 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.
•
Room is excessively hot or cold when unit is
started
• Vent door left open
•
Unit may be in a protection or diagnostic failure
mode.
• Check section on Intelligent Self --- checking
Control.
• Compressor is in time delay. There is a protective
time delay (approx. 3 minutes) on starting the
compressor after a power outage (or restarting
after it has been turned off), to prevent tripping of
the compressor overload.
•
Make sure that curtains, blinds or furniture are not restricting
or blocking unit airflow.
• Reset to a lower or higher temperature setting.
•
Remove and clean filters.
• Allow sufficient amount of time for unit to heat or cool the
room.
•
Start heating or cooling early before outdoor temperature,
cooking heat or gatherings of people make room
uncomfortable.
•
Close vent door.
• Check DIP switch settings for desired comfort.
•
Wait approximately 3 minutes for compressor to start.
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,
check gaskets and fittings around drain for leaks and plugs.
WATER DRIPPING INSIDE

Wall sleeve is not installed level

Wall sleeve must be installed level for proper drainage of
condensation. Check that installation is level and make any
necessary adjustments.
ICE OR FROST FORMS ON INDOOR COIL
• Low outdoor temperature
•
Dirty filters
•
When outdoor temperature is approximately 55 °F (12.8°C) or
below, frost may form on the indoor coil unit is in Cooling
mode. Switch unit to FAN operation until ice or frost melts.
•
Remove and clean filters.
COMPRESSOR PROTECTION
•
Power may have cycled, so compressor is in a
restart protection.
•
Random Compressor restart : Whenever the unit is plugged
in, or power has been restarted, a random compressor restart
will occur. After a power outage, the compressor will restart
after approximately 3 minutes.
• Compressor Protection : To prevent short cycling of the
compressor, there is a random startup delay of 3 minutes and
a minimum compressor run time of 3 minutes.
NOTES:
1. If circuit breaker is tripped or fuse is blown more than once, contact a qualified electrician.
2. If unit is installed where condensation drainage could drip in an undesirable location, an accessory drain kit should be installed and
connected to drain system.