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LG Ceiling Mounted 1-Way Ceiling Cassette

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LG Indoor Units, System Models - Multi V, Multi Zone, Single Zone Ceiling Mounted Repair, maintenance, and replacement planning
LG 1-Way Ceiling Cassette product image

Technical Specifications

Product Specs

  • Brand: LG Air Conditioning Technologies
  • Product type: Ceiling Mounted
  • Product group: Indoor Units, System Models - Multi V, Multi Zone, Single Zone
  • LG category: Indoor Units, System Models
  • LG class: Multi V, Multi Zone, Single Zone
  • LG line: Commercial, Residential/Light Commercial
  • Model records in LG catalog: 16
  • Example model numbers: ARNU073TUD4, ARNU093TUD4, ARNU123TUD4, ARNU183TTD4, ARNU243TTD4, ZRNU073TCAA, ZRNU093TCAA, ZRNU123TCAA, ZRNU183TCAA, KNMFB071A, KNUFB091A, KNUFB121A, KNUFB181A, KSUFB091A, KSUFB181A, KSUFB121A
  • Catalog publish date: 01/13/2025
  • Model or series: 1-Way Ceiling Cassette
  • Equipment type: Ceiling Mounted
  • System role: Ductless or mini-split system equipment
  • Application: Residential, light-commercial, or zone-control comfort applications
  • Compatibility check: Match with compatible outdoor equipment, controls, airflow, voltage, and capacity before service or replacement.
  • Verified source: lghvac.com

Useful troubleshooting details

  • Confirm the exact LG model number, serial number, indoor/outdoor unit relationship, controller type, and connected zone count before scheduling.
  • Share photos of the indoor unit, outdoor unit, disconnect, controller, filter access, condensate routing, and any visible error code.
  • Note whether the concern is no cooling, no heat, weak airflow, water leak, noise, icing, control issue, short cycling, or uneven comfort.

Service planning

How GreenFlow handles 1-Way Ceiling Cassette requests

1

Identify the equipment

Confirm the model or series name, serial number if available, photos, and whether the unit is roof, exterior, basement, or mechanical-room equipment.

2

Describe the service issue

Share no heat, no cooling, weak airflow, error codes, alarms, leaks, noise, control problems, or comfort complaints.

3

Review access and history

Include access notes, tenant or business-hour constraints, filter status, recent repairs, and maintenance records when available.

4

Plan the next step

GreenFlow can route the request for diagnostics, repair planning, maintenance, replacement scope, or related system upgrades.

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Our Happy Customers

Randy J.

Thanks to Andrey for an amazingly quick response to my request for a service call. He diagnosed and fixed my issue within 24 hours of my asking for help. Excellent service. Thanks.

Murali S.

HVAC technician was punctual, followed up well, completed quick repairs, ensured the issue was resolved, and provided helpful recommendations.

Ray

Just had a service call because my tankless water heater stopped working with E110 code. Andrey located the root cause real quick and fixed the issue within half an hour, also gave reasonable recommendations for further maintenance.

John F.

I needed 2 new AC units and decided to go with high efficiency heat pumps. I chose Greenflow because of the equipment they offered, and the price (2nd lowest quote and much cheaper than the average of all quote we received). Their technicians were very detail oriented and...

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