When i put the thermostat on, you hear the boiler turn on but after a couple of minutes it shuts down the radiators do not get hot. The thermostat is calling for heat but we get nothing, what can be the problem?
There are several safety devices in the wiring circuit which include a flow switch, a flame sensor, a high temperature device and several others. One or more of the devices are opening and shutting down the boiler as a protective measure. You need to have a qualified service technician come in and determine which device is reacting and why it is doing so. The technician should be able to identify the problem within 30 to 45 minutes, perhaps less. The technician will know where to locate any replacement parts needed for your particular boiler. The parts may even be in stock on his service vehicle. He should be able to tell you exactly how much any parts and labor will cost before any actual repairs are made.
