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SYNERGY3D INSTALLATION MANUAL
Green "POWER" LED - module has power
Red "TRIP" LED - Thermostat "Y" demand signal is present, but the compressor is not running.
Yellow "ALERT" LED
LED Description
Cause
Flash Code 1
Long Run Time
Eighteen consecutive hours of compressor run time
Flash Code 2
System Pressure Trip
Not applicable
Flash Code 3
Short Cycling
Compressor run time of less than 3 minutes on 4 consecutive cycles
Flash Code 4
Locked Rotor
Four consecutive compressor protector trips indicating compressor won't start
Flash Code 5
Open Circuit
"Y" thermostat demand signal with no compressor current
Flash Code 6
Open Start Circuit
"Y" thermostat demand signal with no current in the start circuit
Flash Code 7
Open Run Circuit
"Y" thermostat demand signal with no current in the run circuit
Flash Code 8
Welded Contactor
Current detected with no "Y" thermostat demand signal present
Flash Code 9
Low Voltage
Less than 17 VAC detected in control circuit
* Flash code number corresponds to a number of LED flashes, followed by a pause and then repeated.
* TRIP and ALERT LEDs flashing at the same time indicates control circuit voltage is too low for operation.
* Reset ALERT flash code by removing 24 VAC power from module.
* Last ALERT flash code is displayed for 1 minute after module is powered on.
Resetting Comfort Alert Codes
Alert codes can be reset manually by cycling power off and on to the Comfort Alert module. Alert codes will reset automatically if
conditions return to normal.
Flash Code Number
LED Description
Automatic Reset of Alert Codes
Flash Code 1
Long Run Time
Thirty "alert free" on and off cycles to reset automatically
Flash Code 2
System Pressure Trip
Not applicable
Flash Code 3
Short Cycling
Four "alert free" on and off cycles to reset automatically
Flash Code 4
Locked Rotor
Four "alert free" on and off cycles to reset automatically
Flash Code 5
Open Circuit
One "alert free" on and off cycles to reset automatically
Flash Code 6
Open Start Circuit
One "alert free" on and off cycles to reset automatically
Flash Code 7
Open Run Circuit
One "alert free" on and off cycles to reset automatically
Flash Code 8
Welded Contactor
One "alert free" on and off cycles to reset automatically
Flash Code 9
Low Voltage
Resets when voltage rises above 19 VAC
* Reset ALERT flash code by removing 24 VAC power from module.
Comfort Alert Flash Codes
Compressor Monitoring/Comfort Alert
The Comfort Alert displays abnormal compressor
conditions through a unique flash code displayed on the
module. All fault codes are passive. All compressor alerts
are displayed on the module by flashing the yellow Alert
LED a specific number of times consecutively followed by
a pause, and then repeated. The number of consecutive
flashes or “Flash Code” correlates to a specific abnormal
condition. The red “TRIP” LED means there is a thermostat
demand signal “Y” present but the compressor is not
running. The green “POWER” LED means the module
has power. Comfort Alert will not be displayed at the
thermostat or on the unit LED status board (only displayed
on the Comfort Alert module).
Microprocessor Control cont.
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Summary of Contents for Synergy3D
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