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Welcome to Just Answer, my name is ***** ***** I will do my best to help you with your
issue. First I’ll need some more info so I have a more complete picture of you situation.
Are you referring to the red lights on the controller? if so is the POWER light on? do you know the model number of the boiler?
Ok, is the POWER light ON? what is the model number of the boiler (it's on the rating tag)?
Is the POWER light on? on the control
OK, how many thermostats do you have?
Is ther more than 1 household on this boiler?
Ok, so only 1 thermostat/1 zone on this boiler/system. We can do some trouble shooting if you're up for it. The first thing to do is to connect the wires on the R & W terminals on the thermostat together. Turn the power off to the boiler first then turn the power bak on once the wires are connected. When you do does the boiler respond?
Ok, the purge light wasn't flashing before? does it stop flashing after a few minutes and stay on solid?
Ok a flashing purge light indicates a problem with the draft. Is the draft inducer fan running?
Ok, do you have a multi-meter so we can check voltage?
Ok, then you'll need to call a plumber to check this out. The most likely culprits are a bad fan motor or a bad control. All you can do now is check the connections between the fan and the controller. Turn the power off before you do .
There should be a service switch (like a light switch) on the side of the boiler, sometimes overhead. If you don't have one you'll have to turn off the breaker.
Now check the connections between the draft fan (the exhaust pipe is connected to it) and the controller. Unplug the connectors then plug them back in
There is a wire connected to the fan. Any connectors on that wire need to be taken apart and put back together. This is a long shot anyway.
Do you have more questions?
I didn't help?!? I walked you through all the trouble shooting steps you could do. I can't fix it for you. I also narrowed down the likely culprits so when you call a pro you'll know what needs to be fixed so you'll be better able to avoid getting ripped off. That's pretty signifcant help.