Nthawi zambiri, chotenthetsera chotenthetsera madzi chimasiya kugwira ntchito (ie fani sichizungulira) chikhoza kuchitika pazifukwa izi:
1. Kuzungulira kwa fani sikulumikizana bwino kapena kumasuka. Yankho: Yang'anani dera molingana.2. Mphamvu imachepa. Yankho: Sinthani luso lina.
3. Koyiloyo ikuyaka. Yankho: Fani yonse iyenera kusinthidwa.
Ngati zoziziritsa kumadzi zomwe mudagula kuchokera ku S&A Teyu zili ndi vutoli, mutha kulumikizana ndi after sales service center.
Pankhani yopanga, S&A Teyu adayika zida zopangira yuan yopitilira miliyoni imodzi, kuwonetsetsa kuti njira zingapo zimachokera kuzinthu zazikuluzikulu (condenser) za mafakitale oziziritsa kukhosi mpaka kuwotcherera kwachitsulo; ponena za mayendedwe, S&A Teyu yakhazikitsa malo osungiramo katundu m'mizinda ikuluikulu ya China, atachepetsa kwambiri kuwonongeka chifukwa cha mayendedwe akutali a katunduyo, komanso kuwongolera magwiridwe antchito; pankhani ya pambuyo-malonda utumiki, nthawi chitsimikizo ndi zaka ziwiri.
