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Termofan fan coil service Ankara

On-site service in Ankara and scheduled service across Türkiye for the maintenance, fault repair, controls and spare parts of your Termofan fan coils. We service all Termofan fan coil models independently of the manufacturer.

  • Symptom-based diagnosis
  • Controls and thermostats
  • Compatible spare parts
  • On-site in Ankara
Please note: YOİ Mühendislik is not the manufacturer's authorized service for Termofan. As an independent service holding the TSE Service Adequacy Certificate (HYB No: 12850), we provide maintenance, repair and spare parts for Termofan fan coils. The brand name is used only to indicate equipment compatibility and belongs to its owner.

About Termofan fan coils

Origin: Türkiye (İstanbul, 2013). In Türkiye: Made in Türkiye.

Termofan fan coil series we service

Unit types

Service highlights

Our services for Termofan fan coils

Termofan fan coil error codes

Most Termofan fan coils run on a 3-speed motor and a simple room thermostat; the manufacturer has not published an error code list for these units. Faults are diagnosed from symptoms and measurements. In projects using an electronic controller or networked thermostat, the codes depend on the controller's own brand.

SymptomPossible causeDetails
Water leakingBlocked drain, overflowing or cracked drain pan, sweating valveFix
No cooling / no heatingStuck motorized valve, air in the coil, dirty filterFix
Fan not turningCapacitor, motor or speed controlFix
Noise and vibrationDirty or unbalanced fan wheel, bearingFix

Common thermostat warnings

Warnings shown on Siemens RDF series thermostats, which are often used with Termofan fan coils:

IndicationMeaningWhat to do
AL1External fault input X1 active (e.g. drain alarm)Check the device connected to input X1.
AL2External fault input X2 activeCheck the device connected to input X2.
FILFilter cleaning reminderClean the filter and reset the warning.
Dew (condensation) symbolCondensation detected in the room, cooling stoppedCheck humidity and water temperature.

Is your Termofan fan coil showing a code?

Send a photo of the controller display and the unit's rating label and we will interpret it right away.

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Termofan fan coil controllers and thermostats

On Termofan fan coils we replace faulty or outdated thermostats with new models suited to the unit's 2/4-pipe configuration, valve type and motor speeds: mechanical, digital, weekly programmable and Modbus / BACnet / KNX networked options. Thermostat options →

Termofan fan coil spare parts

Full spare parts catalog (28 parts) →

Termofan fan coil service in Ankara

We service Termofan fan coils on-site in every district of Ankara. We prepare bulk maintenance plans for office towers, hospitals, hotels, schools, shopping malls and residential complexes. For Termofan units outside Ankara, we start with a pre-diagnosis from photos and videos, followed by a scheduled visit with the required parts.

Fan coil service for other brands

All brands →

Frequently asked questions

Do you service Termofan fan coils on-site in Ankara?

Yes. Our base is in Etimesgut; we carry out on-site maintenance, fault repair and part replacement on Termofan fan coils in every district of Ankara. For Termofan units outside Ankara we provide scheduled service across Türkiye.

Are you the authorized Termofan service?

No. YOİ Mühendislik is an independent service holding the TSE Service Adequacy Certificate (HYB No: 12850); we service all brands, including Termofan, independently of the manufacturer. For units still under warranty, we recommend checking the manufacturer's terms first.

What does a Termofan fan coil error code mean?

Many Termofan fan coils are 3-speed units with a simple thermostat and have no published error code list. If you see a code on the display of a model with an electronic controller, send us a photo and we will interpret it based on the controller and board model.

Are Termofan fan coil spare parts available?

For parts such as motors, capacitors, motorized valves, actuators, thermostats, drain pans, condensate pumps, filters and fan wheels, we supply original parts that fit Termofan units or equivalents whose technical ratings match exactly. A photo of the rating label is enough.

How often should Termofan fan coils be serviced?

A full service at least twice a year, before the cooling and heating seasons; filter checks are recommended every 1–3 months depending on usage.