It would depend on the model of the Goodman unit.
my model unit is a goodman furnace I am just going onto google to get a pdf manual for a backup one...................... Hope that helps
What is open rollout mean on goodman furnace?
circuit board on goodman furnace blicking continously after try to start 3 times fire down led light
I NEED WIRING DIAGRAM SHEMATIC GOODMAN Mod.PGC120225-3A
Probably on the inside of one of the cabinet covers on the unit or Goodman .com
gemini 36g22 y type 202 goodman b12826-28
According to the Goodman Mfg. website, this model is a 10 seer.
Check the error code on the control board at the furnace. It could be a number of things. If the furnace is not lighting, it could be the ignitor If the furnace lights then goes out right away, it could be the flame sensor If the furnace lights then goes out after several minutes, it is a limit switch. Turn the tstat fan switch to on and see if the fan comes on, if it does not you have no power to the furnace, check the breakers or cutoff switch.
One can find reviews for Goodman furnaces: Furnace Compare, Amazon, Buzzle, Hubpages, Goodman Manufacturing, Yelp, Right Day or Night, View Points, DSL Reports.
model # GMP050-3 what is the tonnage of this unit
5tonne