15
Heat Controller, Inc.
PS-81, 101, 121A
Installation, Operation & Maintenance
TROUBLESHOOTING TIPS
TROUBLESHOOTING
1. Unit does not
Start when
Pressing on/off
Button
PROBLEM
POSSIBLE CAUSES
SUGGESTED REMEDIES
Reset the temperature.
Make sure all the windows and
doors are closed.
Remove the heat sources if possible.
Connect the duct and make
sure it can function properly.
Decrease the set temperature.
Clean the air filter.
- Room temperature is lower than
the set temperature.(Cooling mode)
- The windows or doors in the room
are not closed.
- There are heat sources inside the
room.
- Exhaust air duct is not connected or
blocked.
- Temperature setting is too high.
- Air filter is blocked by dust.
2. Not cool enough
Place the unit on a flat, level
ground if possible.
It is normal.
- The ground is not level or not flat
enough.
- The sound comes from the flowing
of the refrigerant inside the
air-conditioner.
4. Noisy or vibration
5. Gurgling sound
Switch on again after the unit
has cool down.
- The automatic over heat
protection function. When the
temperature at the air outlet
O
O
exceed 70 C/158 F,th e de vice
will st op.
6. Power shut off at
Heating mode
- P1 appears in the display window
Drain the water in the bottom tray.
Summary of Contents for Comfort-Aire PS-101A
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