Report "Have an old Rinnai Gas Heater (approximately 30 years old) still working well, but we had to turn off the gas, and now cannot turn it on again. We have two buttons, one below the other, one is red and say On, the other is black. We also have an ignition button at the side. However, we were under the impression that we had to push the red button to get the pilot alight, then hold it there for a few seconds for it to fire up BUT the pilot light does not stay on - just fades away. Can't find instructions. Can you help?"