Looking for suggestions for an old Whitfield Quest WP4 that's not burning efficiently. I've had it for years and it's been great, was burning fine last season. We upgraded to a Harman and this stove went to my sister's (much smaller) house, but it's not burning efficiently, after a few hours pellets have piled up and you have to clean the burn pot. List of things below I have checked/tried so far (that I can think of off the top of my head):
It has a new door and ash pan gasket that I double checked has a good seal
I have taken it apart and clean all inside the stove, behind the firebrick (although this model does not have vents behind the firebrick), cleaned the vent from the burn chamber to combustion fan and obviously the flue
Replaced the combustion fan and both combustion seals, even though I just did this two seasons ago
Tried different kinds of pellets (hardwood)
And now feel like pulling my hair out... What am I missing?
It has a new door and ash pan gasket that I double checked has a good seal
I have taken it apart and clean all inside the stove, behind the firebrick (although this model does not have vents behind the firebrick), cleaned the vent from the burn chamber to combustion fan and obviously the flue
Replaced the combustion fan and both combustion seals, even though I just did this two seasons ago
Tried different kinds of pellets (hardwood)
And now feel like pulling my hair out... What am I missing?