• Please note, some of the links on our site are affiliate links (Learn More)

T9MPD1251203A Tempstar 125k btu Nat Gas burner cycles off and on

cw41

Premium Member
Joined
Oct 1, 2016
Messages
18
Location
new mexico
Model Number
T9MPD1251203A
Brand
-major brand-
Age
More than 10 years
I have a 2003 Tempstar Model T9MPD1251203A Nat gas furnace that when you turn the temp up on thermostat lets say 3 deg, the burner will cycle off and on several times before the thermostat is satisfied?? The fan runs continuously until temp is satisfied. I've had it checked and tech doesn't know why either.
I had the purge fan replaced because of the vibration it made, both limit switches, circuit board and larger 1/2" ID X 5/8" OD flex gas line installed because the smaller one whistled. this maintenance has been done over several years and cannot fix the burner issue. Thanks for any idea's on this one.
 
Top