8
Troubleshooting
If any of the following faults codes appear on your indoor unit, please
contact your li censed professional HVAC installer (or equivalent) or a
service agency.
Table 3. Indoor Display Alert and Status Codes and
Outdoor Unit LED
Unit Error and Operation Codes
Indoor
Unit
Display
System Error Codes
Indoor unit EEPROM error EH 00
Indoor unit EEPROM parameter error EH 0A
Communication error between indoor unit and outdoor
units
EL 01
Indoor fan speed error (DC motor) EH 03
Indoor room temperature sensor error (T1) EH 60
Indoor coil temperature sensor error (T2) EH 61
Refrigerant leakage detection (Cooling mode only) EL 0C
Outdoor current overload protection PC 08
Outdoor ambient temperature sensor error (T4) EC 53
Outdoor coil temperature sensor error (T3) EC 52
Compressor discharge temperature sensor error (T5) EC 54
Outdoor unit EEPROM error EC 51
Outdoor unit fan speed error (DC fan motor) EC 07
Inverter module IPM error PC 00
High or Low voltage protection PC 01
Outdoor low ambient temperature protection PC 0L
Compressor drive error PC 04
Communication error between main control board and
display board
EH 0b
Operational Status Codes
46F heat mode (available on heat pump systems only) FP
Force Cooling FC
Remote or Wired controller Lock LL
Defrost (available on heat pump systems only) dF
Active clean CL
Time On On
Time Off OF
Anti-cold Air Flow (available on heat pump systems only) cF
Remote On/Off CP
ECO mode
On display
3 seconds
Outdoor Unit LED:
FCC Compliance Statement — PART 15.19
PART 15.19 This device complies with Part 15 of the FCC
Rules. Operation is subject to the following two conditions:
1. This device may not cause harmful interference, and
2. This device must accept any interference received,
including interference that may cause undesired
operation. FCC Interference Statement — PART
15.105 (B).
3. This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful
interference in a residential installation.
4. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful
interference to radio communications. However, there
is no guarantee that interference will not occur in a
particular installation. If this equipment does cause
harmful interference to radio or television reception,
which can be determined by turning the equipment
off and on, the user is encouraged to try to correct the
interference by one of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment
and receiver.
• Connect the equipment into an outlet on a circuit
different from that to which the receiver is connect-
ed.
• Consult the dealer or an experienced radio/TV
technician for help.
RF Exposure Information
This equipment complies with FCC radiation exposure
limits set forth for an uncontrolled environment. In order to
avoid the possibility of exceeding the FCC radio frequency
exposure limits, human proximity to the antenna shall not
be less than 20cm during normal operation.
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