The most common faults, and what they mean
Most calls concern a handful of situations: a unit that will not start, lukewarm air in mid-summer, water dripping under the indoor unit, an unusual noise, a flashing light or an unpleasant smell. Behind these symptoms lie very different causes: simple fouling, a blocked condensate drain, a jammed outdoor fan, a faulty circuit board, a failed sensor or a loss of refrigerant.
Before calling us, a few simple checks can save time: is the dedicated circuit breaker on? Are the remote batteries working? Is cooling mode actually selected? Are the filters visibly clogged with dust? If none of this helps, switch the unit off and describe to us what you are seeing.
While you wait for us, a few simple steps limit the damage: switch the unit off if it is leaking or gives off a burning smell, protect the floor with a towel, do not remove the covers and do not keep restarting the unit over and over. If possible, note the code displayed or the number of times the light flashes, and photograph the rating plate on the outdoor unit: this information helps us bring the right part on the first visit.
A calm diagnosis, explained without jargon
On arrival, the air-conditioning technician listens first: since when, under what conditions, after what event. He then examines the indoor and outdoor units, reads the error codes, checks the power supply, the airflow, the drainage and the visual condition of the joints.
He takes the same precautions as during a service: a message before arriving, a dust sheet on the floor, overshoes, and the premises left clean afterwards, even for a short job.
He then explains what he found, in plain words and with photos if needed. You know what is wrong, why, and what the options are: repair, clean, replace a part or, if the unit is at the end of its life, consider a new installation. The choice is yours.
No repair without your written approval
This is an absolute rule at ClimatisateurPro: no repair is started without a quote accepted in writing. The quote specifies the part to be replaced, the labour and the likely lead time if an order is needed. The quote is free, and you can take time to think it over.
When the fault can be fixed on the spot (drain cleared, connector tightened, fan freed), the technician tells you before doing it and confirms the price. No nasty surprises on the invoice: that is what our upfront pricing commitment means.
Realistic lead times, and priority for customers we follow
We usually come out within 24 to 72 hours depending on the season, anywhere in Île-de-France and with no travel charge. We would rather give a lead time we can keep than make an impossible promise during a heatwave.
Customers whose servicing we already handle benefit from our active vigilance: their units are known, their digital maintenance logbook is up to date, and they get priority in the repair schedule. The technician arrives already knowing which model to expect and what was done on the last visits.
Work on the refrigerant circuit
A refrigerant loss is not solved by simply "topping up" the unit: the leak must first be found and repaired. This work is restricted to technicians holding the certificate of competence, within a company holding the certificate of capacity, in accordance with the F-Gas Regulation (EU) 2024/573. That is our case, as explained on the certified technicians page.
Recovered refrigerant is handled in line with the regulations, and every operation is recorded in the unit's digital maintenance logbook, with the type of refrigerant (R-32, R-410A) and the quantity involved.
After the repair: stopping the fault from coming back
Many faults are the result of a lack of maintenance: a condensate tray that is never cleaned ends up overflowing, a fouled coil makes the compressor overheat. Once the repair is done, the technician tells you honestly whether a full service is advisable, and how often.
In your home or your business, the repaired unit then joins our follow-up: we contact you before the next season. To report a fault, use the contact page or call us Monday to Friday from 8 am to 7 pm and on Saturdays from 9 am to 1 pm.