Amana PTAC AC Error Codes

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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