Allied Air Enterprises 4AC16LT manual Flash Codes, Led

Page 17

 

 

 

Flash Codes

 

 

 

 

 

 

LED

Fault Description

Troubleshooting Information

 

 

Status

 

 

 

 

 

 

 

 

 

 

 

POWER

Module has power

Supply voltage is present at module terminals

 

 

(Green)

 

 

 

 

 

 

 

 

 

 

 

 

 

1. Compressor protector is open

 

 

 

 

* Check for high head pressure

 

 

 

Thermostat demand

* Check compressor supply voltage

 

 

TRIP

signal Y1 is present,

2. Outdoor unit power disconnect is open

 

 

(Red)

but the compressor

3. Compressor circuit breaker or fuse(s) is open

 

 

 

is not running

4. Broken wire or connector is not making contact

 

 

 

 

5. Low pressure switch open if present in system

 

 

 

 

6. Compressor contactor has failed open

 

 

 

 

 

 

 

 

 

1. Low refrigerant charge

 

 

 

 

2. Evaporator blower is not running

 

 

 

 

* Check blower relay coil and contacts

 

 

 

 

* Check blower motor capacitor

 

 

 

 

* Check blower motor for failure or blockage

 

 

 

 

* Check evaporator blower wiring and connector

 

 

 

 

* Check indoor blower control board

 

 

 

 

* Check thermostat wiring for open circuit

 

 

ALERT

Long Run Time

3. Evaporator coil is frozen

 

 

Compressor is

* Check for low suction pressure

 

 

(Yellow)

 

 

running

* Check for excessively low thermostat setting

 

 

Flash

 

 

extremely long run

* Check evaporator airflow (coil blockages or return air filter)

 

 

Code 1

 

 

cycles

* Check ductwork or registers for blockage

 

 

 

 

 

 

 

4. Faulty metering device

 

 

 

 

* Check TXV bulb installation (size, location, and contact)

 

 

 

 

* Check if TXV/fixed orifice is stuck closed or defective

 

 

 

 

5. Condenser coil is dirty

 

 

 

 

6. Liquid line restriction (filter drier blocked if present in system)

 

 

 

 

7. Thermostat is malfunctioning

 

 

 

 

* Check thermostat sub-base or wiring for short circuit

 

 

 

 

* Check thermostat installation (location, level)

 

 

 

 

 

 

 

 

 

1. High head pressure

 

 

 

 

* Check high pressure switch if present in system

 

 

 

System

* Check if system is overcharged with refrigerant

 

 

ALERT

Pressure Trip

* Check for non-condensable in system

 

 

Discharge or suction

2. Condenser coil poor air circulation (dirty, blocked, damaged)

 

 

(Yellow)

 

 

pressure

3. Condenser fan is not running

 

 

Flash

 

 

out of limits or

* Check fan capacitor

 

 

Code 2

 

 

compressor

* Check fan wiring and connectors

 

 

 

 

 

 

overloaded

* Check fan motor for failure or blockage

 

 

 

 

4. Return air duct has substantial leakage

 

 

 

 

5. If low pressure switch present in system, check Flash Code 1 info

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 9

506467-01

Issue 1008

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Contents Lennox International Inc. Company 4AC16LT SeriesInstallation Clearances InstallationTorque Table Slab MountingSlab Mounting Electrical WiringThermostat Designations Refrigerant PipingLine Set Isolation Installing Refrigerant LinePlacement Refrigerant Metering Device on Outside Unit Placement InstallationRefrigerant Line Sets Installing Horizontal Runs Refrigerant Line Sets Transition from Vertical to Horizontal Flushing Existing Line Set and Indoor Coil Flushing ConnectionsTXV Data Refrigerant Metering DeviceTo Access the Schrader Port Liquid and Suction Line Service ValvesTo Close Liquid or Suction Line Service Valve Suction Line Ball Type Service ValveLeak Testing Ball Type Service Valve Valve OpenUsing an Electronic Leak Detector EvacuationPage Refrigerant Charging Refrigerant Charge AdjustmentSTART-UP Blocking Outdoor Coil Charge Using Weigh-In MethodApproach Values for TXV Systems R410A Temperature/Pressure ChartSubcooling Values Issue 24VAC Power Wiring Interpreting the Diagnostic LEDsThermostat Demand Wiring OperationLED Flash CodesFault Description Troubleshooting Information Status Sensing holes Miswired Module TroubleshootingIndoor Unit MaintenanceIndoor Coil Start-Up and Performance Checklist Wiring Diagram P/N

4AC16LT specifications

The Allied Air Enterprises 4AC16LT is a highly efficient air conditioning unit designed to provide optimal cooling solutions for residential and light commercial applications. This model exemplifies the balance of innovative technology and user-friendly features, making it a popular choice for homeowners and contractors alike.

One of the standout characteristics of the 4AC16LT is its ENERGY STAR certification, which signifies its energy efficiency and eco-friendly operation. The unit is engineered to reduce energy consumption while delivering reliable performance, ultimately helping to lower electricity bills for consumers.

The 4AC16LT features a scroll compressor, a technology known for its durability and efficiency. This compressor design not only improves the overall cooling efficiency but also minimizes operational noise, providing a quiet and comfortable indoor environment. The unit's sound levels are notably reduced, making it ideal for residential settings where noise can be a significant concern.

In addition to its efficient compressor, the unit boasts a range of advanced technologies. The integrated smart diagnostic features allow technicians to quickly identify and troubleshoot issues, streamlining maintenance and reducing downtime. This is particularly beneficial for contractors, as it enhances service response times and customer satisfaction.

The 4AC16LT is also equipped with a durable cabinet design, which is resistant to rust and corrosion, ensuring longevity and reliability in various environmental conditions. The pre-painted steel casing not only enhances the unit’s durability but also adds an aesthetic appeal that blends well with most home exteriors.

Further enhancing its appeal, the unit utilizes environmentally friendly refrigerants that comply with current regulations. This commitment to sustainability demonstrates Allied Air Enterprises’ focus on innovation while caring for the environment.

Moreover, the model is designed with ease of installation in mind. The compact size and lightweight construction of the 4AC16LT facilitate straightforward installation, saving time and labor costs for technicians.

In summary, the Allied Air Enterprises 4AC16LT air conditioning unit is a top-tier choice that incorporates energy efficiency, advanced technology, and a user-friendly design. Its combination of quiet operation, robust features, and commitment to sustainability makes it an excellent investment for anyone seeking reliable indoor comfort.
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