SERVICE DETAILS
Four-way cassette / ceiling cassette split AC cleaning process and scope
Four-way cassette / ceiling cassette split AC units are usually serviced from the ceiling position to handle the panel, water tray and internal components. We first confirm working height, access space and on-site protection before arranging dismantling, cleaning and performance testing.
OVERVIEW
Overview
Four-way cassette / ceiling cassette split AC cleaning, fault checks, repairs and installation arrangements. For four-way cassette / ceiling cassette split AC, we do not just clean the panel. Depending on the unit condition, we also handle the dust filter, blower wheel, evaporator coil, drip tray and applicable drainage parts. Check the applicable cleaning process, current prices, inspection fee, and the scope of repairs and installation.
KEY CHECKS
Key preparation points before arranging
Main cleaning scope
Dismantle and wash the panel, dust filter, drain pan and fan blades according to the model; protect electronic parts before cleaning the cooling coil and water pump, then reassemble and check drainage and cooling.
Preparation before enquiry
Provide a full view of the ceiling panels, the height from floor to unit, nearby light fixtures, and the access point. If the site has goods, office equipment, or staff activity, arrange protection and clear access first. The model label is the sticker showing the brand, model, and unit number; if you cannot find it, send a photo of the entire air conditioner first, without dismantling it yourself.
Keep basic cleaning and extra work separate
A cassette unit is an indoor unit type and does not mean the whole system category. Panel cleaning is not the same as full internal cleaning; shared systems, lifting equipment or extra work must be confirmed separately.
Test run and fault handling
Check the unit’s operation before and after cleaning; if any pre-existing fault or extra work is found, explain it to the customer and quote first. Cleaning does not guarantee to solve all cooling, dripping or electrical problems.
CLEANING PROCESS
Four-way cassette / ceiling cassette split AC
Remove and clean the front panel, drain tray and fan blades, and clean the cooling fins and water pump.
- Inspect the unit condition: check the operation and equipment condition, and assess whether cleaning is suitable.
- Protect the site: Protect areas around it that may come into contact with water and cleaning agents.
- Safe power-off: the technician will switch off the power and handle any required wiring.
- Remove external accessories: take off the dust filter and casing.
- Handling electronic parts: remove electronic boards and other parts that need protection according to the model.
- Remove assembled parts: take off the drain tray, front panel and fan blades.
- Water collection protection: fit the drip tray cover.
- Clean the main components: use a Japan-made cleaner for air conditioners to clean the cooling fins and water pump.
- Accessories cleaning: clean the drip tray, fan blades, casing and dust filter.
- Assembly and testing: Refit the parts and check operation and cooling.
- Clean-up after work: restore the site and clean the work area.
Notes
- Below is the indoor unit cleaning process; the basic charge does not include the outdoor heat exchanger.
- Before work starts, the access panel, ceiling and components must be assessed for accessibility. Unit cleaning does not include full ductwork, cooling tower or water system works.
CLEANING FIRST
AC Cleaning Scope and Work Arrangement
For four-way cassette / ceiling cassette split AC, we do not just clean the panel. Depending on the unit condition, we also handle the dust filter, blower wheel, evaporator coil, drip tray and applicable drainage parts. We first confirm ceiling height, water protection and maintenance space, then carry out dismantling, cleaning and operation testing.
Inspect first, then clean, and finally test the unit
- First record the condition of the unit, confirm the installation location, removable parts and scope of work, and protect furniture, goods and electronic devices under the unit
- Dismantle and clean the applicable parts according to the actual model and safety conditions, handle dirt build-up, water collection and drainage, and do not treat repairs as included in washing the unit
- After reassembling the parts, test run, check drainage and tidy the site; if there is any pre-existing fault or extra work, it will be explained and quoted first
View the full process for the actual model
Cleaning maintenance and pricing90-day cleaning maintenance is subject to the terms; pricing is based on model type and number of units
The cleaning service includes a 90-day warranty for problems caused by the cleaning service; dripping and leakage cases must first have the cause verified and the applicable terms confirmed at booking, and not all cases qualify for free repair.
The following are for reference by equipment type only, and do not mean the same brand or venue must use all of the above models. Basic cleaning is priced by model and unit count; outdoor condensers, steam add-ons, special locations and extra work are subject to eligibility checks, and no brand-specific or industry-standard price is created.
Other AC services on the same job
FAULT INSPECTIONAir Conditioner Inspection: Identify the Problem FirstIf no repair is carried out, a fixed HK$500 inspection/attendance fee applies; it can be waived from the repair fee if you proceed with the repair.
Please state which side is dripping, whether the air output is uneven, the operating sound, and the fault display, and provide the panel and ceiling positions. Drainage, machinery, and common-system issues must be distinguished; do not judge the condition of the whole system or the pump by the panel appearance alone.
Inspection fee and safety reminder
After the technician visits for an inspection, if the customer does not proceed with the repair or does not accept the repair quotation, a fixed HK$500 inspection/attendance fee will be charged; this is a single charge and is not split into two separate charges.
If you notice a burning smell, smoke, repeated tripping, or water near electrical parts, stop using the equipment first. Do not keep restarting it or dismantle it yourself.
REPAIRAir conditioning repair: confirm the quotation first, then proceedProceed only after the quotation is confirmed; our repair service does not include warranty
Based on the inspection results, identify whether the issue is with the drain pan, drainage, fan or controls, and state the parts, accessible areas and costs first. If lifting equipment or opening up finished areas is required, confirm the scope separately. Do not write cleaning as if it will definitely solve every ceiling leak.
Keep costs and maintenance separate
If you agree to proceed with repairs, HK$500 can be deducted from the repair fee; please check the deduction and amount payable when confirming the quotation.
Our repair service does not include a warranty, including repair parts and workmanship. Please understand the repair scope and fees before accepting the quotation.
Repair parts must be checked against model and supply. We do not guarantee that parts are available for all models or that same-day repair is possible. We will not treat refrigerant top-up as necessary before the cause is confirmed.
INSTALLATIONAC installation and replacementGeneral installation includes a one-year warranty, separate from the manufacturer's warranty; new power supply wiring and extra works quoted separately
When installing or replacing, check the ceiling opening, unit height, support, airflow direction, power supply and drainage method, and also leave space for maintenance. Similar indoor panel sizes do not mean the indoor and outdoor units, wiring or pipework can be directly interchanged.
Quote separately for work beyond the basic scope
Pulling a new power supply from the main switch to the unit is not included; please provide the existing power supply location for the technician to assess and quote separately.
First confirm old unit removal, transport, copper pipes (the copper tubes through which the refrigerant flows), drain pipes, fixing and any extra work needed. General installation warranty and the manufacturer's product warranty are separate. Please see the installation service page for the full scope; special systems are not directly subject to general replacement terms.
RELATED
Charges, services and cases
QUESTIONS
Frequently asked questions
Do four-way cassette and ceiling cassette need separate cleaning pages?
This page consolidates related names to avoid repeated content; the actual panel, model and system must still be checked to confirm the scope, and the common name alone cannot be used to assume the equipment is exactly the same.
How is four-way cassette / ceiling cassette split AC cleaning priced?
Please refer to the relevant residential or commercial air-conditioning cleaning price list and confirm based on the actual model, quantity and working conditions. Special locations, additional parts or extra work cannot be priced by model name alone.
If there is a burning smell or repeated tripping, can cleaning be arranged first?
First stop using the AC. Do not restart it repeatedly or disassemble it yourself. Describe the abnormal symptoms and first confirm safety and whether fault inspection is needed. Cleaning cannot replace handling electrical or mechanical problems.
Are the inspection fee and the call-out fee charged twice?
After the technician visits for an inspection, if the customer does not proceed with the repair or does not accept the repair quotation, a fixed HK$500 inspection/attendance fee will be charged; this is a single charge and is not split into two separate charges. If repair is approved, HK$500 can be deducted from the repair cost; please confirm the deduction and the amount payable when confirming the quotation. Inspection does not include cleaning, parts or repair, and related work will only be arranged after the quotation is confirmed.
Is the warranty the same for repairs and installations?
Our repair service does not include a warranty, including repair parts and workmanship. Please understand the repair scope and fees before accepting the quotation. We provide a one-year installation warranty, covering brackets and leaks caused by glass sealing or sealant. For split units, it also covers refrigerant leakage caused by poor refrigerant-pipe connection; not all water leaks or refrigerant leaks are covered by installation warranty. The two services must not be mixed up; for the full scope and exclusions, please see the repair and installation service pages, and special systems must be confirmed separately.
Enquire about 4outlet-facing / ceiling cassette split unit services
Please provide the address, model and model number, quantity, and photos of the unit location so customer service can verify the service scope and quotation.