rèshuǐqì wèntí yào shuō qīng wánquán méi rèshuǐ shuǐwēn bù wěn dǎ bù zháo huǒ bào cuò lòu shuǐ hái shì yǒu yìwèi

热水器问题要说清完全没热水、水温不稳、打不着火、报错、漏水还是有异味。

For water heater problems, you need to clearly specify whether it's no hot water at all, unstable temperature, won't light, error messages, leakage, or strange odors.