Question about Goodman GMS90703BXA Heater

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Pressure switch problems

Pressure switch problem,blinks 3 times so i replaced pressure switch,board and ignator but borad still blinking 3 times and furnace wont turn on.

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Yes, check for obstructions. However, also check to ensure that you used an OEM pressure switch! See this video for an explanation: Amazon Furnace Parts: http://www.amazon.com/s/?_encoding=UTF8&camp=1789&creative=390957&field-keywords=gas%20furnace%20parts&linkCode=ur2&tag=amznelite-20

Posted on Mar 04, 2015

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This is a air proving problem. You need to check your flue for obstructions like birds nests, rodents, snow, ice, etc. The inducer motor creates a draft that is proved by the pressure switch. This will not make if there is a restriction somewhere.

Posted on Oct 07, 2009

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Your TV has fault in the oiwer regualtor board. As it is intermittent 9 blinks means some times your TV is gettin on, an other times flashinig. There is some fault to the switching regulator on the "G" borad or its connections.
If you intent to do it by yourself, take all necessary precations when we work with an electrical equipement. Keep children away from you, and never let them even stand beside you. Let an adult beside you before you open its back cover. Pull out the power chord of your TV frm wall socket to isolate it from mains supply. Stand on any non conductive meterial spread on the floor, or wear shoes made of rubber or plastic. Don't use any metal chair.
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Power on the set. If this does not help, you should replace the STR [Switching Regulator Transistor], fitted on that boar. It will be screwed to a metal heat sink. Unscrew and desolder it out from the board, and go for the same type and number, replace it. Ok
As much as 28KVDC [28,000C volt DC], points are there in your TV while it works. It is dangerous to touch. You must be very caucious.
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