ActronAir ADVANCE CRV140S

Questions and Answers

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Brenda MccormickAug 17, 2025
What to do if my ActronAir Air Conditioner system does not start?
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  Raymond MartinezAug 17, 2025
  If your ActronAir Air Conditioner system doesn't start, there are a few things to check. First, built-in safety timers may be activated; allow up to 5 minutes for the system to start after turning it on. Next, check the circuit breakers to ensure none have tripped. Make sure the thermostat setpoint is correctly adjusted: lower it for cooling or raise it for heating. Finally, verify the master wall control timer settings are properly configured.
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Mary RussellAug 20, 2025
What to do if ActronAir Air Conditioner compressor is operating but not cooling?
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  dale80Aug 20, 2025
  If the compressor in your ActronAir Air Conditioner is running but the system isn't cooling, check the temperature settings to ensure you are not in heating mode. Also, test the reversing valve to see if it has switched between heating and cooling.
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Eric RamirezAug 25, 2025
Why does the outdoor coil keep freezing over on my ActronAir Air Conditioner?
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  Adam WallerAug 26, 2025
  If the outdoor coil of your ActronAir Air Conditioner keeps freezing over, check the sensor resistance of the outdoor coil sensor. Also, test the reversing valve operation to ensure it is not jammed. Finally, remove any obstructions on the outdoor unit that may be contributing to the issue.
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Eric BrightAug 27, 2025
How to get rid of odour in room when ActronAir Air Conditioner is turned on?
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  Joseph RojasAug 27, 2025
  If there's an odor when you turn on your ActronAir Air Conditioner, it could be due to several reasons. The indoor unit might have absorbed smells from the conditioned space, such as cigarette smoke or cooking odors; in this case, it's recommended to have the indoor unit washed by a technician. Additionally, check if a P-Trap is installed; if not, re-pipe the drain with one. If a P-Trap is present but dry, contact your installer to carry out a general service and fill the P-Trap.
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Jared WangAug 30, 2025
Why set temperature cannot be adjusted on ActronAir Air Conditioner?
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  Lucas DeanAug 30, 2025
  If the set temperature on your ActronAir Air Conditioner cannot be adjusted, it might be because the wall control set temperature limits are being exceeded. Check that the upper and lower temperature limits are set correctly.
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Nicolas HoganSep 1, 2025
Why is only one condenser fan working on my ActronAir Air Conditioner?
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  linda52Sep 1, 2025
  If only one condenser fan is working on your ActronAir Air Conditioner, test the fan motor resistance. Also, test the capacitor microfarad reading and the PCB output voltage.
C
Cody NavarroSep 4, 2025
Why is steam emitted from my ActronAir Air Conditioner outdoor unit?
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  Shannon AnthonySep 4, 2025
  If you notice steam emitting from the outdoor unit of your ActronAir Air Conditioner, it's likely due to one of two normal operations. The unit may be going through a defrost cycle during heating, which is normal in cold conditions. Alternatively, it could be condensation of water on the outdoor coil during heating operation. Optional drip trays can be purchased to drain the excess water.
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Justin BowenSep 6, 2025
How to make ActronAir Air Conditioner compressor operate at 100% capacity?
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  Dwayne CrawfordSep 7, 2025
  To make your ActronAir Air Conditioner compressor operate at 100% capacity, adjust the wall control temperature to create a large differential. This will run the system at full capacity until the temperature is within 4°C of the setpoint. Note that the system will not operate at 100% capacity if it's under Anti Freeze or Overheat Protection. So, adjust the set point less than or greater than 4°C of the indoor temperature depending on the mode of operation.
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James ParkerSep 9, 2025
Why is airflow hunting during Auto and Self Learn Mode on ActronAir Air Conditioner?
- K
  Katherine MooreSep 9, 2025
  If your ActronAir Air Conditioner experiences airflow hunting during Auto and Self Learn Mode, it could be due to excessive static in the ductwork, which may have changed since the self-learn was performed. This can be caused by deteriorating ducts, a dirty filter, or changes in the duct layout. To resolve this, reduce static where possible, referring to the installation guidelines on duct installation. Clean the filter and re-perform the self-learn.
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Angel PaulSep 12, 2025
Why can I hear occasional hissing noise during heating cycle of ActronAir Air Conditioner?
- W
  whitneyreynoldsSep 12, 2025
  The occasional hissing noise heard during the heating cycle of your ActronAir Air Conditioner is the sound of the gas changing direction as the system goes through a defrost cycle. This is a normal function.

Overview

Function Description
Important Technical Specifications
Model Numbers
Indoor Fan PWM and RPM Limits (Approximate values at 25°C ambient temperature)
Component Coil Resistances (at 25°C Ambient Temperature)
EEV Resistance (at 20°C Ambient Temperature)
Condenser Fan Winding Resistance (at 25°C Ambient Temperature)
Pressure Transducer Specifications
Usage Features
Maintenance Features

This document is a troubleshooting guide for the ActronAir Advance Split Ducted Unit, covering both R-410A and R-32 models. It provides comprehensive information on general troubleshooting, EC fan troubleshooting, indoor fan PWM and RPM limits, component troubleshooting, and fault/status codes.

Function Description:

The ActronAir Advance Split Ducted Unit is an air conditioning system designed for ducted applications. This manual serves as a guide for diagnosing and resolving common issues that may arise during installation, operation, and maintenance of these units. It covers various aspects of the system, from basic operational problems to detailed component-level diagnostics and error code interpretations.

Important Technical Specifications:

Model Numbers:

R-410A Models: CRV140S, CRV160S, CRV180S, CRV160T, CRV180T, CRV210T, CRV240T
R-32 Models: CRV13AS, CRV15AS, CRV17AS, CRV13AT, CRV15AT, CRV17AT

Indoor Fan PWM and RPM Limits (Approximate values at 25°C ambient temperature):

R-410A (UNO Board):
- PWM %:
  - EVV140S: Low 35, Medium 47, High 60
  - EVV160S: Low 42, Medium 58, High 77
  - EVV180S: Low 50, Medium 69, High 99
  - EVV210S: Low 43, Medium 61, High 82
  - EVV240S: Low 44, Medium 62, High 84
- RPM Limits:
  - EVV140S, EVV160S, EVV180S: Low 1150, Medium 1290, High 1390
  - EVV210S, EVV240S: Low 1150, Medium 1350, High 1500
R-32 (UNO-Pro Board):
- PWM %:
  - EVV13AS: Low 40, Medium 50, High 64
  - EVV15AS: Low 52, Medium 64, High 73
  - EVV17AS: Low 57, Medium 73, High 99
- RPM Limits:
  - EVV13AS, EVV15AS, EVV17AS: Low 1380, Medium 1380, High 1380

Component Coil Resistances (at 25°C Ambient Temperature):

Reversing valve: 2.03 KΩ
Crankcase Heater: 1.56 KΩ

EEV Resistance (at 20°C Ambient Temperature):

Orange - Grey: 46 ± 3 Ω
Red - Grey: 46 ± 3 Ω
Yellow - Grey: 46 ± 3 Ω
Black - Grey: 46 ± 3 Ω

Condenser Fan Winding Resistance (at 25°C Ambient Temperature):

R-410A Models (Part Number 2505-141 for CRV140S, CRV160S, CRV180S, CRV160T, CRV180T):
- Black and Blue: 97 Ω
- Blue and Brown: 143 Ω
- Black and Brown: 240 Ω
- Any colour and earth: Open circuit
R-410A Models (Part Number 2505-130 for CRV210T, CRV240T):
- Brown and Black: 68.2 Ω
- Brown and Blue: 38.6 Ω
- Black and Blue: 30.1 Ω
- Any colour and earth: Open circuit
- Any colour and either Gray: Open circuit

Pressure Transducer Specifications:

Control Voltage: 5.0 ± 0.2 VDC
Output Voltage: 0.5 to 4.5 VDC
High Pressure Transducer:
- 0 Kpa: 0.5 VDC
- 125 Kpa: 0.6 VDC
- ...
- 5625 Kpa: 5 VDC
Low Pressure Transducer:
- 0 Kpa: 0.5 VDC
- 50 Kpa: 0.6 VDC
- ...
- 2250 Kpa: 5 VDC

Usage Features:

General Troubleshooting: Provides solutions for common operational issues like the system not starting, no airflow, insufficient cooling/heating, steam from the outdoor unit, inability to adjust set temperature, and compressor running but no cooling.
EC Fan Troubleshooting: Addresses issues related to the EC fan, including Auto Mode unavailability, airflow hunting, and excessive airflow at minimum zones. It emphasizes the importance of Self-Learn mode and proper air balance.
Component Testing: Includes detailed procedures for testing the indoor board by looping communication terminals and observing LED flashes.
Communication Voltage Checks: Specifies expected control voltages on communication lines for both InZone (R-410A / R-32) and UNO Board Series (R-410A) to diagnose communication errors.
Indoor Fan Voltage Checks: Provides a step-by-step guide to measure the indoor fan on/off signal and PWM duty cycle to verify fan operation and speed control.
Sensor Tables: Comprehensive temperature-resistance tables for Ambient/Outdoor Coil/Indoor Coil/Suction Temperature Sensors and Discharge Line Temperature Sensors, crucial for diagnosing sensor faults.
Pressure-Voltage Tables: Detailed pressure-voltage tables for High and Low Pressure Transducers, enabling accurate diagnosis of pressure-related issues.
Fault and Status Codes: A comprehensive list of fault and status codes displayed on the outdoor board (LR7-1/LC7-2 CPU) and wall controllers (NEO, LR7-1/LC7-2), along with their descriptions, possible causes, and remedies. This includes codes for sensor errors, pressure switch trips, communication errors, VSD (Variable Speed Drive) faults, and envelope protection errors.

Maintenance Features:

Filter Cleaning: Recommends cleaning the return air filter to address airflow issues.
Obstruction Removal: Advises checking and removing obstructions from the outdoor unit's air inlet or outlet.
Ductwork Inspection: Suggests reducing total static pressure in ductwork, increasing duct sizes, reducing tight bends, or increasing return air grille size for airflow problems.
Heat Load Analysis: Recommends performing a heat load analysis and closing unused zones for insufficient cooling/heating.
P-Trap Installation/Filling: Suggests installing or filling a P-Trap to address odors in the conditioned space.
Self-Learn Mode: Guides users to carry out or re-perform Self-Learn mode for EC fan issues, ensuring proper system calibration.
Air Balance: Emphasizes the importance of correct air balance and installing manual dampers if needed.
Sensor Resistance Checks: Guides technicians to check sensor resistance as a primary diagnostic step for sensor errors.
Refrigerant Leak Checks: Recommends checking for refrigerant leaks and repairing them for high discharge temperature or pressure switch trip errors.
Wiring Checks: Advises checking wiring for faulty transducers or communication errors.
Drive Airflow: Highlights the importance of proper airflow/cooling over the VSD heat-sink for VSD overheating issues.
Power Supply Checks: Instructs users to check line voltage and power supply for VSD-related voltage errors.
Power Cycle/Reset: Suggests power cycling or resetting the drive for certain VSD trip lock errors or after rectifying issues.
Board Replacement: Recommends replacing faulty indoor/outdoor boards, wall controllers, or VSD drives when specific component failures are identified.
Controller Re-assignment: Provides guidance on re-assigning wall controllers in case of communication errors or if a master wall control is not detected.