Due to Ice Air’s ongoing product development programs, the information in this document is subject to change without notice.
29
Troubleshooting
IMPORTANT: It is not the intent of this maintenance manual to
resolve any problems with the operation of your Ice Air unit.
Please contact a trained servicer or building maintenance
staff immediately if your unit fails to perform properly.
1. Contact a trained service technician to conduct full unit
diagnostics and repair to equipment.
2. Record any unit that does not operate noting the unit serial
number on your report.
If unit is not operating, conduct the following checks:
1. Check the electrical connections.
2. Check the voltage and current against the electrical
specifications on the unit nameplate.
3. Look for wiring errors. Check for loose screw connections in both
line and low voltage terminals.
4. Check the water supply piping for proper water connection.
5. Check for dirty filters.
6. Check indoor fan for proper operation.
7. Check that unit did not cycle off due to improper thermostat
settings.
8. Check for fault codes on the control board – consult the Board
Troubleshooting Table.
RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.
WARNING:
Ice Air will not be responsible for any injury or
property damage arising from improper service or service
procedures. If you install or perform service on this unit, you
assume responsibility for any personal injury or property
damage which may result. Many jurisdictions require a license
to install or service heating and air conditioning equipment.
WARNING HIGH VOLTAGE:
Disconnect all power before
servicing or installing unit. Multiple power sources may be
present. Failure to do so may cause property damage,
personal injury or death.
Board Troubleshooting Table
Display (Fault Code)
LED
Yellow
Green
Red
Normal Mode
OFF
ON
OFF
HPS (Refrigerant Pressure) (E1)
OFF
OFF
FLASH
LPS (Refrigerant Pressure) (E2)
FLASH
OFF
OFF
Evaporator coil low temperature protection (E3)
FLASH
OFF
FLASH
Coaxial Coil Anti-freeze protection (E4)
FLASH
ON
OFF
Temperature probe fault (E5)
OFF
FLASH
OFF
High/Low Voltage Protection (E6)
OFF
OFF
ON
Low Pressure Protection (E7)
OFF
ON
ON
Condensate Overflow Electronic Protection (E8)
ON
OFF
OFF
Coaxial Coil water flow low temperature
Protection (E9)
ON
OFF
FLASH
Low Ambience Temperature Protection (E10)
ON
FLASH
OFF
