we had Lennox Whisperheat installed in 1999.  S/N 5899K 50607
this week, the circuit board went. it was charred and we're lucky it didn't start a fire.
 
our HVAC repairman told us that faulty circuit boards are a problem with this model. has anyone else had similar experiences?
 
very dangerous....
					this week, the circuit board went. it was charred and we're lucky it didn't start a fire.
our HVAC repairman told us that faulty circuit boards are a problem with this model. has anyone else had similar experiences?
very dangerous....

