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Solutions to air conditioning error codes

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Air conditioning is effective at providing welcome relief during periods of temperature fluctuation – providing heating and cooling. However, from time-to-time air conditioning error codes display which can cause interruption to your heating/cooling supply, if not dealt with swiftly.

Effective air conditioning planned preventative maintenance (PPM) is essential in ensuring continuity of service and longevity of life of the units, generally:

  • 15 years for room air conditioners and
  • 20 years for computer room systems –

according to Chartered Institution of Building Services Engineers (CIBSE), whose maintenance guide is the authority.

Any air conditioning interruption to process or comfort environments – be they computer room/data processing or office – can prove troublesome for your business and the building occupants respectively. Generally faults are mitigated through PPM, however, from time to time, some faults and error codes may appear on the user control panel. Three of the most common faults we’ve encountered and their solutions are listed below.

Common errors and faults

Fault Observed Guidance Cause/remedy
Air conditioning unit not operating Some lights are illuminated Unit has tripped out on high pressure Extreme hot weather

– OR –

The unit is old and may need replacing

Filter light has illuminated on unit Dirty filters

– OR –

Unit not re-set after maintenance

Unit may need to be serviced or reset Check the maintenance log label – periodically updated by a service company – for service history information
Noted poor performance of unit Inadequate heating or cooling supplied Check: “Contains Fluorinated Greenhouse Gases” and “Refrigerant Leak Check Record” labels* immediately, as an F-Gas leak may have occurred Call your service company if mandatory leak checks have not been performed or recorded
[view F-Gas leak check frequencies]*

* mandatory under EU regulation: EU 517/2014.

Manufacturers’ error codes

In addition, some equipment manufacturers have a troubleshooting area for specific air conditioning error codes, also referred to as fault/malfunction/alarm codes. View each below from the most popular systems in the Irish market:

All other error codes are available on this website »

If in doubt, contact your air conditioning maintenance company – their contact details should be on a service label near the central air conditioning unit – or talk to Thermodial about planned preventative maintenance.

 

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