Hi, I've been in my apartment for about a year and a half without any major problems, I'm on the second floor. Sometimes have to let the water run for 5 minutes to warm up.

Suddenly in the last two weeks the water in both showers will not warm up in the morning. It gets to lukewarm at best. Water in sinks is warm/hot, just not showers. Then at night its hot again in sinks and bathrooms. They've been out a few times and run the water at 10 or 11 am and say it gets hot in 10 minutes. Very frustrated to not be able to take hot showers in the morning now. I have let the water run 20-60 minutes to try to flush out the cold water, but still doesn't warm up. And there is hot water in the sink, so it's not that we have run out of hot water. No other tenants are complaining. Any ideas??? They don't know what else to do. Thanks so much for any input or suggestions.