I have a ferroli optima 701 combi boiler. None of the radiators have bleeding nipples. All of the radiators have thermostats except 1. It is this radiator I am having a problem with.. when the system is running, all the radiators are hot except the one without the thermostat. It is hot at the bottom, but cold at the top. This makes me think there is an air bubble trapped in this radiator, but how do you get it out without a bleeding nipple?
- posted
17 years ago