A woman on oxygen died seven hours after PSE&G cut off power to her house Thursday afternoon. 

Linda Daniels, 68, relied on an oxygen tank powered by electricity to breathe.

Daniels had been in hospice care with congestive heart failure since mid-April. Her family said she was in good spirits but relied on her oxygen tank. 

Daniels' two children and granddaughter say they don't know why the utility company turned off the power.

The family says there was a delinquent balance, but they were trying to pay it down. 

Daniels’ son showed News 12 New Jersey bank records that he paid $500 on July 3, two days before the power shut off.

Just before 10 a.m. Thursday is when the family says the lights went off and the house got brutally hot. Daniels' backup tank ran out of oxygen, so the family called an ambulance. 

Daniels died an hour after the ambulance crew left.

The power was restored Friday morning.

PSE&G confirmed they shut off the power to Linda Daniels' home, and says it tried to reach the family numerous times.