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DuctlessAire DA1215-H1 - User Manual

DuctlessAire DA1215-H1
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Ductless
Revision A: 1403100001, Content updated.
Model Numbers:
DA1215-H1
DA1815-H2
DA2415-H2
Ductlessaire
mini split
SERVICE MANUAL
Mono DC
Table of Contents
1. Precaution
2. Part Names And Functions
3. Specification
4. Dimension
5. Refrigerant Cycle Diagram
6. Wiring Diagram
7. Installation Details
8. Operation Characteristics
9. Electronic Function
10. Troubleshooting
11. Disassembly Instructions
WARNING
Installation MUST conform with local building codes or, in the absence of local codes, with the
National Electrical Code NFPA70/ANSI C1-1993 or current edition and Canadian Electrical
Code Part1 CSA C.22.1.
The information contained in the manual is intended for use by a qualified service technician
familiar with safety procedures and equipped with the proper tools and test instruments
Installation or repairs made by unqualified persons can result in hazards to you and others.
Failure to carefully read and follow all instructions in this manual can result in equipment
malfunction, property damage, personal injury and/or death.
This service is only for service engineer to use.

Table of Contents

Questions and Answers

  • M
    millsgregoryAug 13, 2025
    What should I do if my DuctlessAire Air Conditioner shows a high temperature protection error for the compressor?
    • M
      mitchellgardnerAug 13, 2025
      If your DuctlessAire Air Conditioner's compressor is experiencing high temperature protection, allow the compressor to cool down. Then, inspect the unit for any blockages that may be causing the overheating.
  • C
    conwayraymondAug 17, 2025
    What to check if the indoor fan speed is out of control on my DuctlessAire DA1215-H1?
    • A
      Angela WilsonAug 17, 2025
      If the indoor fan speed of your DuctlessAire Air Conditioner is out of control, examine the indoor fan motor and its control signal.
  • S
    Steven AlexanderAug 20, 2025
    How do I troubleshoot an out-of-control outdoor fan speed on my DuctlessAire Air Conditioner?
    • J
      jennifer57Aug 20, 2025
      If the outdoor fan speed of your DuctlessAire Air Conditioner is out of control, check the outdoor fan motor and the control circuitry.
  • K
    Kari ShepherdAug 25, 2025
    What should I do if my DuctlessAire DA1215-H1 Air Conditioner displays a T1 sensor error?
    • B
      Brittany HickmanAug 25, 2025
      If your DuctlessAire Air Conditioner indicates an open or short circuit in the indoor room temperature sensor T1, test the T1 sensor for continuity and replace it if necessary.
  • C
    christine96Aug 28, 2025
    How to troubleshoot a T3 sensor error on my DuctlessAire DA1215-H1 Air Conditioner?
    • S
      Samuel KelleyAug 28, 2025
      If your DuctlessAire Air Conditioner indicates an open circuit or short circuit in the condenser coil temperature sensor T3, check the T3 sensor for proper operation.
  • G
    gryanAug 31, 2025
    What steps should I take if my DuctlessAire Air Conditioner shows a T2 sensor error?
    • M
      Mark TaylorAug 31, 2025
      If your DuctlessAire Air Conditioner is showing an open or short circuit error for the evaporator coil temperature sensor T2, check the T2 sensor connections and its functionality.
  • C
    Casey FarrellSep 4, 2025
    How to fix a T4 sensor error on my DuctlessAire Air Conditioner?
    • R
      ralphhobbsSep 4, 2025
      If your DuctlessAire Air Conditioner indicates that the outdoor temperature sensor T4 has an open or short circuit, test the T4 sensor and replace it if it is defective.
  • C
    Christine FreySep 8, 2025
    How do I resolve an outdoor unit EEPROM parameter error on my DuctlessAire DA1215-H1 Air Conditioner?
    • K
      kristy15Sep 8, 2025
      If your DuctlessAire Air Conditioner is showing an EEPROM parameter error for the outdoor unit, reprogram the EEPROM with the correct parameters.

Summary

Precaution

1.1 Safety Precautions

General safety instructions for users and property protection.

1.2 Warning Statements

Critical warnings regarding installation, operation, and maintenance to prevent hazards.

Wiring Diagrams

6.1 Indoor Unit Wiring

Shows the electrical wiring connections for indoor units of different capacities.

6.2 Outdoor Unit Wiring

Installation Details

7.4 First-Time Installation

Operation Characteristics

Electronic Functions

9.3 Main Protection Functions

Covers compressor delay, temperature protections, fan speed, inverter, and zero crossing error protections.

9.4 Operation Modes and Functions

Troubleshooting

10.0 Troubleshooting Safety

Crucial safety warnings about discharging capacitors before PCB work.

10.1 Indoor Unit Error Display

Lists error codes, blinking patterns, and LED statuses for indoor units.

10.2 Outdoor Unit Error Display

Describes the LED status on the outdoor PCB during standby and operation.

10.3 Diagnosis and Solution

General troubleshooting guide for specific error codes like E0/F4 and E1.

10.4 Specific Error Code Diagnosis

Detailed diagnosis and solutions for various error codes (E2, E3, E5, EC, P0, P1, P2, P4).

DuctlessAire DA1215-H1 Specifications

General IconGeneral
Refrigerant TypeR410A
Indoor Unit Noise Level32 dB
Cooling Capacity12000 BTU
Heating Capacity12000 BTU
Energy Efficiency Ratio (EER)11.0
TypeMini Split
Operating Temperature (Cooling)62°F - 90°F
Operating Temperature (Heating)32°F - 86°F
Refrigerant Pipe Connection Size1/4 inch - 3/8 inch
Maximum Pipe Length82 ft
Voltage208/230V

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