Code 61 is the pressure switch . High efficiency is what it says its in the high 90s in efficiency
SOURCE: goodman furnace 4 blinks
In the compartment with the blower moter there is a little (button) with two wires going to it.(it is attached to the top (you will have to look up in the compartment) if the unit is installed up and down and not on the side.) (If it is in sidways it is in the section between the two comartments). anyways.... on mine there is a little reset button right between the wires.... press it and see if it makes a click sound. try your start up procedure and see if the problem goes away... I don't know if MY equipment got too hot or if the switch is failing... but it worked for me.
SOURCE: goodman furnace 4 blinks
Ohm out the safety switches also known as the high limits usually at least two on units they look like little buttons, with two wires going to each one. An open high limit will mean the circuit is not closed and allowing for the system to complete the circuitry to fire the heat, best way to diagnose is to jump out the suspected high limit s/w if the unit runs then you have your answer, but never, never leave the high limit switch jumped w/o the switch.
SOURCE: Need installation manual for Goodman GSC13 High
Goodman.com go to service and tech support you can down load manuals from there.
SOURCE: My Goodman High efficiency furnace stopped working
On the panel with the wiring diagram, there is an error code chart. I think 3 flashes is a pressure switch problem. Check your air filter, condensate pump or hoses. Check the small hoses going to the pressure switch, check your air intake and exhaust vents. Remove any moisture or debris. Make sure all venting pitches back to the heating system and no low spots are holding water.
SOURCE: constant high pitched noise emitting from furnace
Hi,
This is probably a dry bearing in the vent motor. Those motors run at high RPM's and can make a deafening high pitched squeal if they become dry and need oiling.
Some of the motors have oil cups on them for dripping oil into and others;s are much more difficult as you need to guess where the bearing is and try to drip oil down into them or run the oil to them.
Any light weight small motor oil ike a sewr machine oil will work.
Many hardwares have small oil bottles with extending spouts made just for oiling motors for just a couple of bucks...
The other thing that can cause this is if the blower wheel is coming loose and has moved to the side and is hitting the side of the blower housing. Take the bottom cover off and check for play or movement side to side in the blower wheel. Spinning it with the power off by hand may give you a clue as you will hear it scraping the side of the housing.
Heatman101
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