Manuals & references
Error-code catalogues
Choose the manufacturer or controller to open its reference PDF or official manual library. Check the manual for your exact model before acting on a code.
A displayed code helps identify where to look; it does not always identify the failed part. If a system is overheating, repeatedly tripping, or putting stock at risk, call an engineer.
Air conditioning
Mitsubishi Electric
Fault-code catalogue PDF ↗Mitsubishi Heavy Industries
Air conditioner manual PDF ↗Toshiba
Technical handbook PDF ↗LG
Error-code reference PDF ↗Midea air conditioning
Fault-finding catalogue PDF ↗VRF fresh-air processing unit manual & error codes PDF ↗Portable AC user manual & error codes (Singapore range) PDF ↗Fujitsu
Troubleshooting guide PDF ↗Hitachi
Service reference PDF ↗Samsung
Error-code summary PDF ↗Daikin
Fault-code chart PDF ↗FTXM20–25K operation & fault diagnosis PDF ↗Gree
Official service manual library (US models) Library ↗Haier
European HVAC technical literature & manuals Library ↗Refrigeration controllers
ID COOL / CHILLnFREEZE
Controller manual PDF ↗OPTYMA Control
User manual PDF ↗Precision
MPT / LPT manual PDF ↗Williams
Operating manual PDF ↗Skope
Service manual PDF ↗LEC Medical
Product handbook PDF ↗LAE
Controller manual PDF ↗Dixell
XR01–06CX reference PDF ↗Carel
Controller manual PDF ↗Danfoss
ERC 112 refrigeration controller user guide PDF ↗Eliwell
IDPlus 961 / 971 / 974 HC documentation Library ↗AKO
AKO-14545 / 14545-C compressor rack controller — English PDF ↗Official manual library Library ↗EVCO
EV3143 refrigerated milk storage controller PDF ↗Links open manuals hosted by AA Frost or the manufacturer. Libraries let you choose your exact model; regional models and controller revisions can differ. For help using a code, call 020 3633 7664.