I have had this problem with this furnace for a couple of weeks. The first problem was a communication error - replaced Icomfort & that code hasn't reappeared.
I went out two weeks ago and found blocked drain line - cleared the drain and checked the concentric kit for obstructions - none found.
After clearing the drain it seemed to work fine, but this morning the homeowner said he had a critical alert - 276 -HP sw
He said it seems as though it doesn't seem to operate in low, then will go to high and ramp up to satisfy the call for heat on the tstat. The temp will fall a degree or two, until it does.
I am not at the home, but just reaching out to see if any Lennox guys have seen this on this furnace.
My gut is saying inducer motor assembly failing.
Thanks for any ideas.
I went out two weeks ago and found blocked drain line - cleared the drain and checked the concentric kit for obstructions - none found.
After clearing the drain it seemed to work fine, but this morning the homeowner said he had a critical alert - 276 -HP sw
He said it seems as though it doesn't seem to operate in low, then will go to high and ramp up to satisfy the call for heat on the tstat. The temp will fall a degree or two, until it does.
I am not at the home, but just reaching out to see if any Lennox guys have seen this on this furnace.
My gut is saying inducer motor assembly failing.
Thanks for any ideas.
