Farsamada haydarooliga isku xidhaha degdega ah waa nooca biinka qabsashada lammaanaha degdega ah.Waxa jira dhululubada hadhidarooliga ah kaas oo ay maamusho waalka solenoid ee ku xidha jillaabka dhaqaaqi karo.Marka dhululubada hadhidarooliga la xakameeyo iskala bixinta ama dib u gurashada, lamaanayaasha degdega ah ayaa awood u leh inay qabtaan ama lumiyaan biinka lifaaqyadaada.Faa'iidada ugu weyn ee isku-xiraha degdegga ah ee haydarooliga waa in aan u baahanahay oo kaliya in aan ku fadhino qolka qodista, xakameyno furaha ku xiran valve solenoid si loo sameeyo lammaanaha degdega ah si fudud oo degdeg ah u beddela lifaaqa.