System Operation & Troubleshooting

If your remote control is not working properly, you can follow these steps to identify and resolve the issue before contacting customer service. Aurashu recommends checking each of the following in sequence to ensure efficient troubleshooting and minimize downtime:1. Check the power supply and batteries. Make sure the remote control has working batteries installed correctly (observe polarity). Replace both batteries with new ones of the same type. If the remote still fails, confirm there is no corrosion or dirt on the battery contacts.2. Ensure there are no obstructions or distance issues. The remote should be pointed directly at the receiver panel or infrared (IR) sensor on the indoor unit. Remove any obstacles between the remote and the receiver, and make sure you are within the effective range (usually 5–8 meters).3. Check for interference or sunlight exposure. Strong light sources, such as direct sunlight or fluorescent lamps, can interfere with the infrared signal. Try using the remote in a shaded position or adjust lighting to reduce interference.4. Verify the indoor unit’s control status. If the unit is controlled by a wall-mounted controller, BMS system, or centralized controller, manual remote operation may be disabled. Confirm whether the remote function is locked or overridden by a central control system.5. Reset the system. If the issue persists, try turning off the main power to the air conditioning unit for 3–5 minutes, then turn it back on. This resets the internal communication between the unit and the remote receiver.6. Inspect for hardware damage. Check whether the remote control has physical damage, such as cracks or water exposure. If the remote was dropped or got wet, internal circuitry may be damaged and require replacement.7. Test with another remote control (if available). If you have a similar unit or spare remote, test to confirm whether the problem lies with the remote itself or the receiver board in the indoor unit.If none of these steps solve the issue, please contact Aurashu technical support or your local distributor. Provide the model number, purchase date, and a brief fault description for faster assistance. Our engineers can offer remote diagnostics, component replacement guidance, or arrange on-site service if needed.

If you notice water leakage around the indoor unit, it’s usually a sign of condensate drainage issues, installation problems, or abnormal operation conditions. Here are the main causes and recommended troubleshooting steps before requesting service:1. Check the drain pipe condition. The most common reason for water leakage is a clogged or improperly installed drain pipe. Dust, algae, or dirt can block the condensate line, causing water to overflow from the drain pan. Make sure the drain pipe is not bent, blocked, or elevated, and clean it using a vacuum or compressed air if possible.2. Inspect the condensate drain pan. Over time, the drain pan may rust, crack, or shift due to vibration or poor installation. If water accumulates inside the unit, check whether the pan is damaged or misaligned. Replace or reposition it if necessary.3. Confirm proper unit installation and leveling. If the indoor unit is not level, condensate cannot flow smoothly toward the drain outlet. Ensure the unit is installed horizontally with a slight tilt (3–5 mm) toward the drain side to allow proper drainage.4. Examine the air filter and airflow. Dirty filters restrict airflow and can cause evaporator coil frosting, which later melts and overflows. Clean or replace the air filters every 2–4 weeks, depending on the environment.5. Check the insulation of refrigerant pipes. When insulation is damaged, condensation can form on the outer surface of the copper pipes, appearing as a leak. Ensure the thermal insulation sleeve is intact and sealed, especially around joints and bends.6. Monitor humidity and temperature conditions. In extremely humid environments, the condensation rate increases. When airflow is too low or temperature settings are too low, excessive condensation may occur. Keep indoor temperature above 20°C (68°F) and humidity below 70% if possible.7. Check for frozen evaporator coils. If the coil freezes (caused by low refrigerant, dirty filters, or blocked airflow), melting ice can overflow once the unit stops. Turn off the unit and allow it to thaw naturally, then clean filters and check airflow.8. Inspect the condensate pump (if equipped). For ceiling-mounted or basement installations, a condensate pump helps discharge water. If the pump fails or is clogged, leakage can occur. Listen for pump noise — if silent, check power or call for service.If the above steps do not resolve the problem, turn off the unit and contact Aurashu after-sales service. Provide the unit model, installation date, and leakage location for accurate diagnosis. Our service team can guide you through drain line cleaning, insulation repair, or component replacement remotely or on-site.

Unusual noise from an HVAC or air conditioning unit often indicates loose components, airflow obstruction, or mechanical imbalance. Addressing noise early helps prevent damage and maintain comfort. Here are the most common causes and solutions:1. Loose or vibrating components Rattling or metallic noises usually mean loose screws, panels, or fan blades. Turn off the unit and check if the front panel, air outlet grille, or mounting brackets are secure. Tighten any loose parts and make sure the unit is firmly installed on a stable surface.2. Foreign objects in the fan or duct If you hear clicking, tapping, or scraping sounds, debris such as plastic, paper, or leaves may be caught in the fan wheel or duct. Remove the front cover carefully and inspect the blower and outlet for obstructions. Always power off the unit before cleaning.3. Imbalanced or damaged fan blades A buzzing or wobbling sound might mean the fan blades are imbalanced or bent, causing vibration during rotation. Stop the system and inspect the blades. Clean off dust buildup and, if damaged, contact Aurashu service for replacement.4. Airflow restriction or dirty filters Whistling or hissing noises can result from clogged air filters or blocked vents. Clean or replace filters and make sure supply and return grilles are not obstructed by furniture or curtains.5. Loose refrigerant piping or vibration transmission If a low-frequency humming is present, it might come from refrigerant pipes vibrating against walls or brackets. Add insulation or reposition pipes to reduce contact and resonance.6. Expansion or contraction of materials When metal components heat up or cool down, minor popping or ticking noises can occur—this is generally normal. If such sounds increase in intensity or frequency, schedule a checkup.7. Compressor or motor issues A loud grinding, squealing, or buzzing could indicate motor bearing wear, fan motor imbalance, or compressor malfunction. In such cases, turn off the system immediately and contact Aurashu’s professional service team to avoid further damage.8. Regular maintenance Perform regular inspection, tightening, and cleaning to prevent most noise-related problems. Annual maintenance helps identify early mechanical wear and ensures long-term quiet operation.If the noise persists after these steps, record the sound type and duration, then contact Aurashu technical support. Our specialists will guide you through advanced diagnostics or arrange on-site assistance to restore optimal performance.

It’s normal for a heating system to take a short time before delivering warm air after startup. This delay allows the system to stabilize, circulate air evenly, and reach optimal operating temperature. The duration typically depends on the system type, ambient conditions, and configuration. Below are the main reasons and explanations:1. System Warm-Up Phase When heating starts, the compressor or electric heater needs time to generate sufficient heat. The refrigerant or heating coil gradually warms up before the fan begins blowing air to avoid delivering cold drafts. This usually takes 1–5 minutes depending on capacity and room size.2. Energy Efficiency Design Aurashu systems are equipped with intelligent temperature control that delays fan startup until coil temperature reaches the preset threshold. This feature prevents wasted energy and improves comfort by ensuring that only warm air is circulated.3. Ambient Temperature and Load Conditions If the indoor or outdoor temperature is very low, the unit requires more time to reach heating mode. Heat pump systems, in particular, need to reverse the refrigeration cycle, so initial heat buildup can take longer.4. Airflow and Duct Path Length Warm air passes through ducts or air handlers before reaching outlets. In large buildings or systems with long duct paths, air delivery may take extra seconds to stabilize. Ensuring clean filters and unobstructed airflow helps shorten this delay.5. Defrost and System Protection Modes In cold climates, heat pump systems may perform pre-heating or coil defrosting to protect components from frost buildup. During this process, warm air output may temporarily pause but will resume once optimal conditions are restored.6. User Settings and Thermostat Control If the thermostat is set to “Auto” mode, the system waits for the desired temperature differential before engaging full heating power. Manually adjusting the temperature setpoint slightly higher may prompt faster warm-up.7. Regular Maintenance Improves Response Time Dirty coils, clogged filters, or worn sensors can slow heat transfer. Routine cleaning and maintenance—ideally every 6–12 months—ensure fast, consistent performance.Summary: The short delay in warm air after startup is part of normal system operation, ensuring energy-efficient, steady, and comfortable heating. If heating takes excessively long or never stabilizes, check filters, thermostat settings, or contact Aurashu technical support for diagnosis.

If your air conditioner is not cooling or heating properly, it may be due to several common causes related to system settings, airflow, or maintenance. Aurashu recommends following these key checks before requesting service, as many performance issues can be quickly resolved through basic inspection and adjustment.1. Verify Temperature Settings and Mode Ensure the unit is set to the correct mode — “Cool” for cooling or “Heat” for heating — and that the temperature setpoint is several degrees lower (for cooling) or higher (for heating) than the room temperature. Incorrect mode or mild temperature difference may prevent the system from activating fully.2. Check Airflow and Filters Clogged or dirty air filters restrict airflow, reducing cooling and heating efficiency. Clean or replace filters regularly, ideally every 2–4 weeks during heavy use. Blocked vents or return grilles should also be cleared for proper air circulation.3. Inspect Doors and Windows Poor insulation, open windows, or air leaks can cause conditioned air to escape, forcing the system to work harder and reducing performance. Make sure all windows and doors are properly sealed when the unit is running.4. Monitor Outdoor Unit Condition For systems with outdoor condensers, ensure the outdoor coil is free of dust, leaves, or debris that can obstruct heat exchange. Adequate ventilation around the outdoor unit is crucial for stable cooling and heating capacity.5. Check for Refrigerant or Sensor Issues Low refrigerant levels, faulty sensors, or electronic control errors can reduce performance. These conditions require professional inspection — contact Aurashu service if cooling or heating is persistently weak despite proper settings.6. Environmental and Load Factors Extreme outdoor temperatures or unusually large indoor loads (many people or devices generating heat) can temporarily affect performance. The system will adjust gradually to restore balance.7. Maintenance and Preventive Care Regular maintenance, including coil cleaning, refrigerant checks, and software updates, ensures long-term efficiency. Aurashu recommends comprehensive servicing every 6–12 months for optimal operation.Summary: Improper cooling or heating is often caused by incorrect settings, dirty filters, airflow blockage, or maintenance neglect. Check these first, and contact Aurashu if the issue persists for expert diagnosis and adjustment.