Updated: 2026-08-04
Air conditioner not cooling? A gas leak case at the flare connection
A real-style repair guide for weak cooling caused by a refrigerant leak at the flared pipe connection.
Read the guideFor aircons that are not cooling, leaking or noisy
Aircon Repair and Cooling Inspection in Aichi, Gifu and Mie
Simply refilling refrigerant may not solve a cooling problem if a leak remains. We first review the symptoms, model and installation conditions, including flare joints, piping and the outdoor unit area, before discussing inspection and repair options.
View all aircon servicesCooling problems have more than one possible cause
Operating mode, airflow, outdoor-unit behavior, error displays and installation conditions all affect what needs checking. If refrigerant is low, a possible leak should be considered before a refill.
Flare joints and piping may need inspection
A piping connection can require checking over time or after installation work. Photos alone cannot confirm a cause, so an appropriate inspection is used to decide the next step.
BEFORE CONTACT
Useful details for a repair enquiry
- When the symptom occurs and which operating mode is affected
- Model number, error display and photos of both units
- Water leaks, noise, odor or breaker issues occurring at the same time
- Any previous refrigerant refill, installation or relocation
FAQ
Frequently asked questions
Will a refrigerant refill alone fix a cooling problem?
It depends on why refrigerant is low. If there is a leak, a refill alone can lead to the same problem again, so piping and flare joints should be checked.
What should I do if the indoor unit leaks water?
Stop operation and protect floors and furniture. Do not disassemble the unit; share photos of the leak, symptoms and model number.
Can I ask about unusual noise or a tripping breaker?
Yes. Stop use for safety and share when it happens, any error display and the installation conditions.
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