We could not find independent, published Singapore reliability data that ranks Daikin above Mitsubishi or the other way round, so we do not name a winner. What the two brands publish is similar in one important way: both warranties depend on proper maintenance, and neither covers servicing. Choose by the specific model’s energy rating, noise and price, buy from an authorised dealer, and keep your aircon servicing records.
Key takeaways
- Daikin’s general warranty is 15 months from delivery or 12 months from installation, whichever is earlier. Mitsubishi Electric’s is 12 months from purchase.
- Mitsubishi Electric’s compressor warranty is 60 months from purchase, covering the part only after the first 12 months. Daikin’s compressor warranty follows its general warranty, and its length is not stated on its warranty page. [ADD: the length shown on your Daikin warranty certificate.]
- Both brands void the warranty for improper or missing maintenance. Neither covers cleaning or servicing.
- Both brands’ own repair services are weekday only: Daikin’s call centre is open Monday to Friday, 9:00 to 17:30, and Mitsubishi Electric’s on-site service hours are Monday to Friday, 9:30 to 17:30.
- Running cost depends on the model’s energy rating and how you use it, not the brand name. Use the formula in this post with your own bill.
Daikin vs Mitsubishi at a glance: what each brand publishes
Every row below comes from a brand’s own Singapore page, checked on 6 November 2026. Where a brand does not publish a figure, the cell says so.
| Daikin | Mitsubishi Electric | |
|---|---|---|
| General warranty | 15 months from delivery or 12 months from installation, whichever is earlier | 12 months from the date of purchase |
| Compressor warranty | A further period after the general warranty; length not stated on the warranty page [ADD: from certificate] | 60 months from purchase |
| Labour and transport on a compressor claim | Excluded from the compressor warranty | Covered for the first 12 months only |
| Maintenance and warranty | Warranty void for improper maintenance | Warranty void if routine maintenance servicing is not carried out |
| Is servicing covered? | No: general servicing is not covered | No: cleaning and maintenance are not covered |
| Repair work warranty | 1 month from the date of attendance | |
| Service hours | Call centre Mon to Fri, 9:00 to 17:30; closed weekends and public holidays | On-site service Mon to Fri, 9:30 to 17:30 |
| Published service charges | None listed | Evaluation from S$140, repair service from S$220 per room aircon unit, plus S$45 transport, excluding parts |
| Maintenance contract | Residential contract: Standard, New 3+1 (3 preventive maintenance sessions and 1 steam cleaning) and Premium |
Sources: Daikin air conditioner warranty, Daikin service support, Daikin residential maintenance contract, Mitsubishi Electric warranty terms and Mitsubishi Electric service charges.
Things this table cannot tell you: which brand breaks down less, which is cheaper to run, or which is quieter. Those depend on the exact model, and we did not find reliable published data to compare the brands fairly.
Which is more reliable, Daikin or Mitsubishi?
We cannot honestly say. We searched for independent reliability data for Singapore, such as consumer tests or failure-rate surveys comparing the two brands, and did not find any we could verify. Many brand comparison pages online give a verdict without showing their data. We do not repeat claims we cannot check.
What you can check yourself
- The warranty on the exact model. Daikin’s general warranty is 15 months from delivery or 12 months from installation, whichever is earlier. Mitsubishi Electric’s is 12 months from purchase, and its compressor warranty is 60 months. A warranty tells you what the brand will fix. It does not prove how often the unit fails.
- What voids the warranty. Both brands say improper or missing maintenance can void it. Daikin also lists non-genuine parts, connecting its units to another brand and ignoring its instructions or local codes.
- Installation quality. Daikin’s terms exclude workmanship problems on external piping and insulation, and Mitsubishi’s void the warranty for unauthorised repair. A poor installation causes problems with any brand. See our aircon installation page.
- Whether the model meets the energy minimum. Since 1 April 2025, NEA requires single-split units to be at least 4 ticks and multi-split units at least 5 ticks, per NEA.
- How the unit is looked after. Regular aircon servicing keeps any brand running well and protects your warranty. See the section below.
Running cost: how to work it out for your own model
We do not claim that Daikin or Mitsubishi is cheaper to run, because running cost depends on the specific model, its capacity, your room and how long you run it. You can work it out yourself in three steps.
- Find the unit’s power use in kW on its datasheet or energy label. Use the figure for cooling at your typical load.
- Work out hours of use. For example, 8 hours a night for 30 days is 240 hours.
- Multiply and price it. Monthly cost = power in kW x hours x your electricity tariff in dollars per kWh.
Worked example (arithmetic only): a unit drawing 0.9 kW and running 8 hours a night for 30 days uses 0.9 x 8 x 30 = 216 kWh a month. Multiply 216 by the rate on your latest electricity bill to get the monthly cost.
Compare two models properly
- Compare units of the same capacity, so you compare like with like
- Compare the energy label ticks and the annual energy figure on the label
- Check whether the unit is inverter
- Run the same sum for each model and look at the monthly difference
Keep running cost down. A dirty filter or coil makes any aircon work harder. See our guides on how often to service your aircon and energy-efficient aircon in Singapore.
Aircon servicing for Daikin and Mitsubishi units
Whichever brand you choose, regular aircon servicing is the part you control. It affects your warranty, your electricity use and how long the unit lasts.
Why it matters for the warranty. Daikin’s terms cover units that are “properly installed, used and maintained” and void the warranty for improper maintenance. Mitsubishi Electric’s terms void the warranty if routine maintenance servicing is not carried out. Neither brand pays for the servicing itself. Keep a written record after every visit.
How often. We recommend every 3 to 4 months for units in daily use. See how often should you service your aircon in Singapore.
What a standard aircon servicing visit covers at our company
- Filter cleaning and sanitisation
- Evaporator coil and blower wheel inspection and vacuuming
- Drain tray cleaning and drain line flush
- Refrigerant and gas pressure check
- Electrical and mechanical inspection
Price. Our servicing is $50 for 1 unit, $40 per unit for 2 to 3 units and $35 per unit for 4 to 5 units, with a 90-day workmanship warranty. We service all major brands, including Daikin and Mitsubishi. See aircon servicing price per unit.
Daikin’s own maintenance contract. Daikin offers a residential maintenance contract in three packages: Standard, New 3+1 (three preventive maintenance sessions and one steam cleaning session) and Premium. Daikin does not list prices on that page. See Daikin’s residential maintenance contract. If you want a contract from a servicing company instead, see our aircon maintenance contract.
To book aircon servicing for your Daikin or Mitsubishi unit, call +65 87710850 or see our aircon servicing page. We provide aircon servicing in Singapore for homes and businesses.
Repair: what each brand publishes, and what to ask
We cannot rate the repair experience of either brand, because we found no independent data on it. We can tell you what each brand publishes about its own service.
| Daikin service | Mitsubishi Electric service | |
|---|---|---|
| How to book | Call 6311 8686, WhatsApp 9323 8686 (messages only) or use the online appointment form | Through its Customer Care and Technical Centre |
| Hours | Call centre Mon to Fri, 9:00 to 17:30; closed Saturdays, Sundays and public holidays | On-site service Mon to Fri, 9:30 to 17:30 |
| Response | Earliest available appointment; longer in peak periods | Surcharges apply for after-hours or same-day service |
| Charges | Not listed on the page | Evaluation from S$140, repair service from S$220 per room aircon unit, system work from S$600, plus S$45 transport per service, excluding spare parts |
| Repair warranty | 1 month from the date of attendance |
Sources: Daikin service support and Mitsubishi Electric service charges, checked 6 November 2026.
If your aircon breaks outside weekday hours. Both brands’ own services are weekday only, so an independent repair company may be quicker. We are open Monday to Saturday, 08:30 to 22:00, offer same-day appointments, and give a 60-day quality warranty on repairs. See our aircon repair page.
Before you agree to a repair, ask
- What is the fault, and what will the repair cost, in writing?
- Is the unit still under warranty, and does this fault qualify?
- Are the parts genuine? (Daikin’s warranty is void if non-genuine parts are used.)
- What warranty does the repair itself carry?
If the unit is old and keeps failing, see aircon repair vs replacement.
Which one should you choose?
We cannot name a winner. Use what each brand publishes and what matters to you.
| If you care about | Check this | Where to check |
|---|---|---|
| Warranty length and coverage | Parts, compressor and labour terms for the exact model | The brand’s warranty page and your quotation |
| Energy cost | Energy-efficiency ticks and power input of the exact model | The NEA label on the unit. Single-split units must have at least 4 ticks since 1 April 2025 |
| Quiet bedroom | Indoor noise range in dB(A) | The model datasheet |
| After-sales | Service hours, charges and booking channels | The brand’s service page (see the repair section above) |
| Servicing | Who will service it, how often, and at what price | Your installer’s terms and our aircon servicing price per unit |
Before you buy, ask the seller to put the model number, the warranty terms and the installation scope in writing. If you are comparing other brands, see Panasonic vs Mitsubishi aircon.
FAQs
Is Daikin or Mitsubishi more reliable?
We cannot say. We found no independent, published Singapore reliability data comparing the two. Compare the warranty terms and service support for the exact models you are considering.
Does aircon servicing affect my Daikin or Mitsubishi warranty?
Yes. Daikin’s terms cover units that are properly installed, used and maintained. Mitsubishi Electric’s terms void the warranty if routine maintenance is not carried out. Neither brand pays for the servicing. Keep your service records.
How often should I service a Daikin or Mitsubishi aircon?
We recommend every 3 to 4 months for units in daily use. This is our own recommendation, not a brand requirement.
How much does aircon servicing cost?
Our aircon servicing is $50 for 1 unit, $40 per unit for 2 to 3 units and $35 per unit for 4 to 5 units. See the price page.
Can you service Daikin and Mitsubishi aircons?
Yes. We service all major brands. Call +65 87710850 to book aircon servicing.
Which is cheaper to run?
It depends on the exact model, its power input and how long you use it. Use the three-step formula in the running cost section with your own tariff.
Book aircon servicing, and related reading
Need aircon servicing for a Daikin, Mitsubishi or any other brand? Call or WhatsApp +65 87710850, or email sales@aircon-service.sg. We are open Monday to Saturday, 08:30 to 22:00.
Related reading
- Aircon servicing in Singapore
- Aircon servicing price per unit
- Aircon repair
- Aircon maintenance contract
- Panasonic vs Mitsubishi aircon
Sources (checked 6 November 2026)
- Daikin Singapore: service support
- Daikin Singapore: residential maintenance contract
- Mitsubishi Electric Singapore: service charges
- NEA Minimum Energy Performance Standards for air-conditioners, as in force from 1 April 2025