15 | Troubleshooting
Installer reference guide
231
EVLQ05+08CA + EHYHBH05A + EHYHBH/X08A + EHYKOMB33AA
Daikin Altherma hybrid heat pump
4P355634-1G – 2022.09
Error code Cause Possible solution
8 Incorrect fan speed ▪ Fan catching on casing
▪ Wiring between fan and casing
▪ Check wiring for poor wire contact
▪ Replace fan
29, 30 Gas valve relay fault Replace boiler controller
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