dennis728
New Member
I have a locknivar boiler (model # RBN090) that is not working properly. The thermostat calls for heat, the boiler relay clicks on, the gas ignites and then it only stays on for about 30 seconds to a minute then turns off. This cycle repeats without every really getting up to the proper temp. Any ideas on what this can be? The air damper seems to be opening and the gas ignites so I am guessing some type of thermostat setting or some sensor not working properly. Any help before the cold temps set in would be very helpful. Thanks!