boiler won't fire up...


  #1  
Old 10-19-08, 10:31 AM
D
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Angry boiler won't fire up...

hello,

can anyone help me. i have a crown boiler. the pilot stays lit, but it wont fire up, no matter how high the thermostat is. the pressure is good but of course the temp is low. i hear athe click when the thermostat is turned on..but iy don't fire up. it used to.
 
  #2  
Old 10-19-08, 06:29 PM
C
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My understanding is that there needs to be a negative draw going up your exhaust pipe before the burners will kick on. There is a pressure switch that detects that draft that can go bad. The negative draw is created by an exhaust fan turning on to pull away the combustion gas.
 
 

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