Table of Contents
Advertisement
Table 10. Alert Codes and Troubleshooting
Alert
Priority
Alert Text
Code
The top cap switch has opened 5 times within
442
Critical
one hour. As a result, the outdoor unit is
locked out
443
Incorrect appliance unit size code selected.
Critical
Moderate /
530
Low Damper 24VAC Voltage
Critical
Zoning Pressure Switch Opened (high
532
Moderate
pressure)
Moderate/
542
Zone 1 Temperature Sensor Problem
Critical
Moderate/
543
Zone 2 Temperature Sensor Problem
Critical
Moderate/
543
Zone 3 Temperature Sensor Problem
Critical
Moderate/
545
Zone 4 Temperature Sensor Problem
Critical
(Equipment Interface Module) Pre-coil dis
Moderate
charge air temperature sensor problem (DFM
594
/ Critical
mode only). Advances from moderate to crit
ical after ten (10) minutes.
Compressor has been cycled OFF on utility
600
Critical
load shedding.
Outdoor unit has been cycled OFF on low
601
Critical
temperature protection.
(Thermostat) The temperature sensor in the
700
Moderate
thermostat is not working properly.
(Thermostat) The thermostat is reading in
701
Moderate
door temperatures above the pre-pro
grammed limit.
(Thermostat) The thermostat is reading in
702
Moderate
door temperatures below the pre-pro
grammed limit.
(Thermostat) The humidity sensor in the ther
703
Moderate
mostat is not working properly.
(Thermostat) The thermostat is reading in
704
Moderate
door humidity levels above the pre-pro
grammed limit.
(Thermostat) The thermostat is reading in
705
Moderate
door humidity levels below the pre-pro
grammed limit.
Ohm
The ohm reading in the system is either too
—
Check
high or too low.
HOMEOWNER SERVICE ALERT CODES
Number
Value
Number
3000
Filter 1
3002
3001
Filter 2
3003
507152-01
.
Value
Number
Value
Humidifier Pad
3004
Maintenance
UV Light
3005
PureAir Maintenance
Critical alerts are displayed on Home (user) screen, in the Homeowner alert button, and in the
Installer alert button. Minor and Moderate alerts are found only in the Installer alert button.
Steps to clear
When compressor thermal protection sensor opens 5 times within 1 hour. Outdoor unit will
stop. To clear, disconnect power to outdoor unit and restart.
Check for proper configuring under unit size codes for outdoor unit on configuration guide or in
installation instructions. If replacing inverter, verify inverter model matches unit size. The
alarm/fault clears after the correct match is detected following a reset. Remove the thermo
stat from the system while applying power and reprogramming.
S
Damper Supply voltage is < 18VAC.
S
Maintain non-zone mode for 5 minutes after alarm clears.
Compressor pressure is above the specified limit. Compressor is turned off. Zoning will be re
stored once the high pressure switch closes.
Invalid temperature reading, Open or short sensor detected. System is restored 30 seconds
after fault is recovered.
Invalid temperature reading, Open or short sensor detected. System is restored 30 seconds
after fault is recovered.
Invalid temperature reading, Open or short sensor detected. System is restored 30 seconds
after fault is recovered.
Invalid temperature reading, Open or short sensor detected. System is restored 30 seconds
after fault is recovered.
Interlock relay energized, but input not sensed after 3 seconds. No heating and cooling opera
tions. De-energize interlock relay and re-energized 5 minutes later if demand is still present.
Alarm clears 5 minutes after fault clears.
Load shedding function: Provides a method for a local utility company to limit the maximum
power level usage of the outdoor unit. The feature is activated by applying 24 volts AC power
to the L and C terminals on the outdoor control.
Low temperature Protection: Outdoor unit will not operate when the outdoor temperature is
at or below 4°F (20°C). If the unit is operating and the outdoor temperature drops below
4°F (20°C), the unit will continue to operate until the room thermostat is satisfied or the out
door temperature drops to 15°F (26°C). (Outdoor unit ambient sensor provides temperature
readings)
.
Recalibrate thermostat to clear. Replace thermostat if needed.
Recalibrate thermostat to clear; cool thermostat; adjust set point. Replace thermostat, if
needed.
Recalibrate thermostat to clear; warm thermostat; adjust set point. Replace thermostat, if
needed.
Recalibrate thermostat to clear; adjust set point. Replace thermostat, if needed.
Recalibrate thermostat to clear. Replace thermostat, if needed.
Recalibrate thermostat to clear. Replace thermostat, if needed.
Ohm reading between i+ and i- anywhere on the RSBus with supply power off should be
between 70 and 90 ohms. If above 90 ohms, check and repair wiring, splices or other wiring
defects that may be causing the excessive resistance. If less than 70 ohms, check for shorted
wires.
Number
Value
4000
User Wi-Fi state change, disable
4001
Firmware download failed
Page 32
Number
Value
4002
Image file download failed
7/2013
Advertisement
Table of Contents
