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I installed a new thermostat because I believed the last one didn't work. The new tstat is a Honeywell model RTH221. My furnace is a Goodman model # GMPN080-4. when I put the tstat to "on" the...

The model number of the thermostat is honeywell RTH221

I can get the model number in an hour...

As for the limit control, where is it located and is it possible for me to fix it or even know if its lost its setting?

By the way, you've been a great...

It's a honeywell, I don't have the model number with me... could it be possible that something on the furnace itself can be adjusted to increase its cycle time?

Its pretty much always done this, I decided to change the thermostat because it was old and falling off its mounting. I assume all the regesters are open? Is there a certain place I should make...

I just replaced the air filter, is there any others that need to be replaced? The blower motor seems to be running, and the cycle isn't real rapid on/off, it lasts about 15 minutes before shutting...

My furnace never reaches the target temperature on the thermostat. Even if I increase the temp on the thermostat, the temperature is never met. The current temp is set for 74 degrees, it was 62...