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Amana PTAC AC Error Codes

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Amana Air Conditioner Maintenance Dubai

Package Terminal, Air Conditioner/Heat Pump. Amana Diagnostic Codes;

MODES:

Error Code: FP

  • Status: Freeze Protection Engaged. The room temperature measured by the wireless remote thermostat or indoor ambient thermistor active sensor falls below 40°F
  • Suggested Action: No Action required. This setting will disengage when the room temperature rises above 43°F.
  • Display: Y
  • Error Light: N

Error Code: Fd

  • Status: Front Desk switch is closed. All outputs are switched off
  • Suggested Action: Open front desk switch to allow occupant unit operation
  • Display: Y
  • Error Light: N

Error Code: Eo  

  • Status: Un-Configured Service Board – All operation held awaiting configuration
  • Suggested Action: Enter Configuration Menu and set “C3” to “C” for coolers with electric heat or “H” for heat pumps.
  • Display: Y
  • Error Light: Y

Error Code: EH

  • Status: Emergency Hydronic Engaged. The EHH switch is closed. Compressor is switched off.
  • Suggested Action: Open front emergency hydronic switch to allow occupant unit operation.
  • Display: Y
  • Error Light: N

Error Code: LS 

  • Status: Load Shedding Engaged. The LS switch is closed. Compressor and Electric heat is switched off
  • Suggested Action: Open load shedding switch to allow occupant unit operation
  • Display: Y
  • Error Light: N

Error Code: On  

  • Status: Control is configured to respond to a wired thermostat
  • Suggested Action: No action if a wired thermostat is being used. Otherwise, see Configuration Settings.
  • Display: Y
  • Error Light: N

Error Code: oP 

  • Status: Open Door Lockout (DS1 & DS2 open; wireless)
  • Suggested Action: Close Room Door. Unit will not condition space with door open.
  • Display: Y
  • Error Light: Y

Error Code: nP 

  • Status: Window Switch Lockout – (LS & INN open)
  • Suggested Action: Close Room Door or Window. Unit will not condition space with door or window open
  • Display: Y
  • Error Light: Y

Error Code: HP  

  • Status: Heat Sentinel – (WIAT > u3)
  • Suggested Action: No action required. This setting will disengage when the room temperature falls
  • Display: Y
  • Error Light: N

Error Code: Ur 

  • Status: Un-Rented Status (EHH & INN or wireless)
  • Suggested Action: Front Desk needs to set to Rented mode (if applicable)
  • Display: Y
  • Error Light: N

FAILURES;

Error Code: F1

  • Status: Indoor Ambient Thermistor reads outside the range -20°F to 200°F & the wireless thermostat is not communicating to the unit control or Indoor Ambient Thermistor (IAT) without a wireless remote thermostat reads outside the range -20°F to 200°F
  • Suggested Action: Replace black Indoor Ambient Thermistor or Wireless Remote Thermostat
  • Display: Y
  • Error Light: Y

Error Code: F2

  • Status: Wireless Remote Thermostat failure
  • Suggested Action: Replace Wireless Thermostat
  • Display: N
  • Error Light: N

Error Code: F3 

  • Status: Indoor Ambient Thermistor reads outside the range -20°F to 200°F
  • Suggested Action: Replace black Indoor Ambient Thermistor
  • Display: Y
  • Error Light: N

Error Code: F4 

  • Status: Indoor Coil Thermistor either above or below operating tolerances
  • Suggested Action: Replace Red Indoor Coil Thermistor
  • Display: N
  • Error Light: Y

Error Code: F5  

  • Status: Wireless Thermostat failure
  • Suggested Action: Attempt to rebind Wireless Thermostat or Replace Wireless Thermostat
  • Display: N
  • Error Light: Y

Error Code: F6 

  • Status: Indoor Discharge Thermistor either above or below operating tolerances
  • Suggested Action: Replace Yellow Indoor Discharge Thermistor
  • Display: N
  • Error Light: Y

Error Code: Fb 

  • Status: Low Remote Battery Warning
  • Suggested Action: Replace Batteries in Wireless Devices
  • Display: N
  • Error Light: Y

Error Code: H1 

  • Status: High Voltage Protection engaged. Power supply voltage is to high
  • Suggested Action: Check for incoming power at correct voltage
  • Display: Y
  • Error Light: N

Error Code: br

  • Status: Brown Out Protection engaged. Power was lost or voltage is low
  • Suggested Action: Check for incoming power at correct voltage
  • Display: N
  • Error Light: N

AIRFLOW ALERTS;

Error Code: L6   

  • Status: Discharge Air Too Hot
  • Suggested Action: Clean Filter or Remove Air Blockage
  • Display: N
  • Error Light: Y

Error Code: LC  

  • Status: Outdoor Coil Thermistor temperature high
  • Suggested Action: Clean Condenser Coils, Check Fan for fault. Code will reset after cleaning
  • Display: N
  • Error Light: Y

Error Code: C2 

  • Status: Indoor Air Recirculation. Large delta between thermostat and return
  • Suggested Action: Clean Filter or Remove Air Blockage or Close Vent Door or Improve indoor to outdoor seal.
  • Display: N
  • Error Light: Y

Error Code: C5 

  • Status: Outdoor Coil temperature too high for outdoor ambient temperature
  • Suggested Action: Check for Blocked Outdoor Air or Clean Coil
  • Display: N
  • Error Light: Y

REFRIGERATION ALERTS;

Error Code: C1 

  • Status: Indoor Coil is freezing up
  • Suggested Action: Clean filter, Check for fan and blower operation, Check for Refrigerant loss or Restricted capillary tub
  • Display: N
  • Error Light: Y

Error Code: C3

  • Status: Indoor Coil is freezing up
  • Suggested Action: Clean filter, Check for fan and blower operation, Check for Refrigerant loss or Restricted capillary tube
  • Display: N
  • Error Light: Y

Error Code: C4 

  • Status: Indoor Coil froze up
  • Suggested Action: Clean filter, Check for fan and blower operation, Check for Refrigerant loss or Restricted capillary tube
  • Display: N
  • Error Light: Y

Error Code: C6 

  • Status: Poor Unit Performance
  • Suggested Action: Check for blower motor, compressor, or electric heat operation
  • Display: N
  • Error Light: Y

Error Code: C7 

  • Status: Indoor Freezing Lockout (ICT – IAT > 20) +10 Min
  • Suggested Action: Clean filter, Check for fan and blower operation, Check for Refrigerant loss or Restricted capillary tube
  • Display: N
  • Error Light: Y

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Amana Air Conditioner Error Codes

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Amana Air Conditioner Maintenance Dubai

Amana Air Conditioner Error Codes

Standard and Remote Applications with LED M70 Control Board and R-410A

MODES

CODE: FP

STATUS: Freeze Protection Engaged. The room temperature measured by the wireless remote thermostat or indoor ambient thermistor active sensor falls below 40°F.

SUGGESTED ACTION: No Action required. This setting will disengage when the room temperature rises above  43°F.

CODE: Fd

STATUS: Front Desk switch is closed. All outputs are switched off.

SUGGESTED ACTION: Open front desk switch to allow occupant unit operation.

CODE: Eo

STATUS: Un-Configured Service Board – All operation held awaiting configuration

SUGGESTED ACTION: Enter Configuration Menu and set “C3” to “C” for coolers with electric heat or “H” for heat pumps.

CODE: EH

STATUS: Emergency Hydronic Engaged. The EHH switch is closed. Compressor is switched off.

SUGGESTED ACTION: Open front emergency hydronic switch to allow occupant unit operation.

CODE: LS

STATUS: Load Shedding Engaged. The LS switch is closed. Compressor and Electric heat is switched off.

SUGGESTED ACTION: Open load shedding switch to allow occupant unit operation.

CODE: On

STATUS: Control is configured to respond to a wired thermostat

SUGGESTED ACTION: No action if a wired thermostat is being used.

CODE: oP

STATUS: Open Door Lockout (DS1 & DS2 open; wireless)

SUGGESTED ACTION: Close Room Door. Unit will not condition space with door open.

CODE: nP

STATUS: Window Switch Lockout – (LS & INN open)

SUGGESTED ACTION: Close Room Door or Window. Unit will not condition space with door or window open.

CODE: HP

STATUS: Heat Sentinel – (WIAT > u3)

SUGGESTED ACTION: No action required. This setting will disengage when the room temperature falls.

CODE: Ur

STATUS: Un-Rented Status (EHH & INN or wireless)

SUGGESTED ACTION: Front Desk needs to set to Rented mode (if applicable)

FAILURES

CODE: F1

STATUS:

  • Indoor Ambient Thermistor reads outside the range -20°F to 200°F & the wireless thermostat is not communicating to the unit control or
  • Indoor Ambient Thermistor (IAT) without a wireless remote thermostat reads outside the range -20°F to 200°F.

SUGGESTED ACTION: Replace black Indoor Ambient Thermistor or Wireless Remote Thermostat.

CODE: F2

STATUS: Wireless Remote Thermostat failure

SUGGESTED ACTION:  Replace Wireless Thermostat.

CODE: F3

STATUS: Indoor Ambient Thermistor reads outside the range -20°F to 200°F

SUGGESTED ACTION: Replace black Indoor Ambient Thermistor.

CODE: F4

STATUS: Indoor Coil Thermistor either above or below operating tolerances.

SUGGESTED ACTION: Replace Red Indoor Coil Thermistor .

CODE: F5

STATUS: Wireless Thermostat failure

SUGGESTED ACTION: Attempt to rebind Wireless Thermostat or Replace Wireless Thermostat.

CODE: F6

STATUS: Indoor Discharge Thermistor either above or below operating tolerances.

SUGGESTED ACTION: Replace Yellow Indoor Discharge Thermistor.

CODE: Fb  

STATUS: Low Remote Battery Warning.

SUGGESTED ACTION: Replace Batteries in Wireless Devices.

CODE: H1

STATUS: High Voltage Protection engaged. Power supply voltage is to high.

SUGGESTED ACTION: Check for incoming power at correct voltage.

CODE: br 

STATUS: Brown Out Protection engaged. Power was lost or voltage is low

SUGGESTED ACTION: Check for incoming power at correct voltage.

AIRFLOW ALERTS

CODE: L6

STATUS: Discharge Air Too Hot.

SUGGESTED ACTION:  Clean Filter or Remove Air Blockage.

CODE: LC

STATUS: Outdoor Coil Thermistor temperature high.

SUGGESTED ACTION: Clean Condenser Coils, Check Fan for fault. Code will reset after cleaning

CODE: C2  

STATUS: Indoor Air Recirculation. Large delta between thermostat and return.

SUGGESTED ACTION: Clean Filter or Remove Air Blockage or Close Vent Door or Improve indoor to outdoor seal.

CODE: C5 

STATUS: Outdoor Coil temperature too high for outdoor ambient temperature.

SUGGESTED ACTION: Check for Blocked Outdoor Air or Clean Coil.

REFRIGERATION ALERTS

CODE: C1 

STATUS: Indoor Coil is freezing up

SUGGESTED ACTION: Clean filter, Check for fan and blower operation, Check for Refrigerant loss or Restricted capillary tube.

CODE: C3 

STATUS: Indoor Coil is freezing up.

SUGGESTED ACTION: Clean filter, Check for fan and blower operation, Check for Refrigerant loss or Restricted capillary tube.

CODE: C4 

STATUS: Indoor Coil froze up.

SUGGESTED ACTION: Clean filter, Check for fan and blower operation, Check for Refrigerant loss or Restricted capillary tube.

CODE: C6 

STATUS: Poor Unit Performance.

SUGGESTED ACTION: Check for blower motor, compressor, or electric heat operation.

CODE: C7

STATUS: Indoor Freezing Lockout (ICT – IAT > 20) +10 Min

SUGGESTED ACTION: Clean filter, Check for fan and blower operation, Check for Refrigerant loss or Restricted capillary tube.

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Amana Through the Wall (TTW) AC Error Codes and Troubleshooting

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Amana Ac Maintenance Dubai

Amana Air Conditioner Normal Operating Sounds And Conditions:

Popping Or Gurgling Sounds: This sound is the refrigerant traveling through the lines. This is a normal sound which may be heard for a few seconds after the unit shuts off.

Water Trickling Sounds: This sound is produced by the water as it is picked up and run over the coils. This procedure improves the efficiency of the unit and helps with water removal.

Water Dripping: Water will collect in the base pan during high humidity days.

Starting Delay: You may notice a short delay in the startup if you try to restart the unit too soon after turning it off or if you adjust the thermostat right after the compressor has shut off. This delay protects the compressor.

Error Code: F1

Status: Outdoor ambient thermostat not registering on the board.

Corrective Action: Replace or re-connect the thermostat.

Error Code: F2

Status: Outdoor ambient thermostat not registering on the board.

Corrective Action: Replace or re-connect the thermostat.

Error Code: F4

Status: Outdoor coil thermostat not rgistering on the board.

Corrective Action: Replace or re-connect the thermostat.

Error Code: FJ

Status: Indoor discharge thermostat not registering on the board.

Corrective Action: Replace or re-connect the thermostat.

Additional Information

  • The remote control will operate all the control panel features. Instructions will be the same.
  • The “COOL” circuit has an automatic 3 minute time delayed start if the unit is turned off and on quickly. This prevents overheating of the compressor and possible circuit breaker tripping. NOTE: The fan will continue to run during this time.
  • The control will maintain any set temperature between 60°F and 90°F (cooling), 55°F and 80°F (heating).
  • The control is capable of displaying temperature in degrees (Fahrenheit) or degrees (Celsius). To convert from one to the other, press and hold the UP and DOWN Temperature Selection Pads at the same time for 3 seconds.

Compressor

The compressor is hermetically sealed, permanently lubricated and requires no additional oiling.

Front Panel And Grille

The front panel and grille can be cleaned with a mild soap or detergent. Do not use hydrocarbon-based cleaners (e.g. acetone, benzene, naphtha, gasoline, etc.) to clean the front panel or grille. Use care when cleaning the control area. Do not use an excessively wet cleaning cloth.

Scheduled Ac Maintenance

To achieve continuing top performance and high efficiency, a regular cleaning/inspection schedule must be established. Maintaining this schedule can be accomplished by either a local maintenance staff or an authorized service and must follow the instructions described in this manual.

  • If the unit is operated in a dusty climate, dust may collect in the base pan and clog the condenser coil. It is advisable to remove the unit from the sleeve and thoroughly clean the base pan and condenser coil on a periodic basis.
  • If the unit is installed ocean side or in a corrosive atmosphere, its life may be greatly reduced by the corrosive environment. Under these conditions, the unit should be removed from the sleeve and completely cleaned once a year. At that time any scratches or blisters on the painted surfaces should be sanded and repainted.

Air Conditioner Outdoor Coil Cleaning

The coils on the outdoor side of the air conditioner should be checked regularly. For cleaning outside coil, remove the 6 screws that mount the condenser coil top cover to condenser shroud.

Amana Through the Wall (TTW) AC Manual PDF

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