Crown Boiler no call for heat

[jonblu]

Has power and I assume gas. I changed thermostat and still get no call for heat Err 56.
Can I cross the thermostat terminals on the boiler to test if that will make the boiler run?
What else would prevent the boiler from starting?
How do i test to find out what it is?

thanks

 

[voletl]

Well, the boiler is telling you error 56. Do you happen to Know what the error code is?

I did A Google search And error code 56 has to do with the vent damper.

 

[jonblu]

Error code 56 is no call for heat. How do i check the vent damper? Could it be something else?

 

[jonblu]

Can I cross the thermostat terminals on the boiler to test if its the thermostat?

 

[voletl]

Check and see if vent damper has 24 volts going to it. I'm sorry, but I'm not at your house not next to the boiler. I can only go off of what you tell me. There's no pictures or anyting.

 

[voletl]

Is this boiler in your house?

 

[jonblu]

No, but a house I'm renovating.

 

[jonblu]

Check and see if vent damper has 24 volts going to it. I'm sorry, but I'm not at your house not next to the boiler. I can only go off of what you tell me. There's no pictures or anyting.

I will do that and check to see if its stuck. Usually if you cross the thermostat wires a boiler will start right up if its a thermostat issue, so perhaps its the damper.