Technical helpdesk & support

Daikin UK’s Technical Helpdesk offers invaluable technical support and guidance if you experience on-site issues with commissioning or diagnosing faults.

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For support with air conditioning systems, please contact:

0845 641 9200 (option 2)

Monday to Friday 8am to 5pm


SMS Fault Code Service 07797 801908

Calls cost 0p per minute plus your phone company's access charge*



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For support with heating systems please contact:

0845 641 9277

Monday to Friday 8am to 5pm from 1st April to 30th September

Monday to Friday 8am to 7pm and Saturday 9am to 3pm from 1st October to 31st March


Calls cost 0p per minute plus your phone company's access charge*

To help provide a quick and efficient response please make sure you have the full model number of the unit to hand.

Your call will be answered by one of Daikin UK’s fully trained engineers.

If you need a quick explanation of, or remedy to a fault code, and don’t have your service manual to hand, please send the fault code to our SMS Fault Code Service on 07797 801908 and we will advise you by return.

Call charges to 0845 numbers are made up of a service charge (to the organisation you are calling) and an access charge (to your phone provider). 0845 calls to Daikin UK cost 0p per minute service charge. Please check your phone company’s access charge separately. Your mobile provider may charge more for these calls, if 0845 numbers are not included in your mobile package. Please check with your mobile provider.