[mrlandsaw]

Blower is now blowing continuously, therefore, burners will not ignite. What can be wrong. It is a Ruud Silhouette II propane furnace.

 

[beenthere]

High limit stuck open. Probably caused by a dirty air filter, or dirty evap coil, or supply and or return registers blocked. Correct air flow problem, then get new high limit. This is of course a guess made on the limited info you posted.