Question about Kitchen Ranges
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Posted on Jan 02, 2017
SOURCE: Goodman U-30 Furnace
observe the sequence of operation. stat calls for heat and sends a signal, to furnace. check for 24 volts to common and white wire at furnace.first the forced draft motor starts and should have 120 volts to the plug it attaches to. after forced draft motor starts the pressure or vacuum switch closes should show no 24 volt when checked across terminals. shortly after the ignitor glows and shortly after click the main gas valve opens and main burners fire. shortly after the indoor fan comes on and hot air blows into the ductwork. follow the chain of events to see what doesnt happen and it is a clue to whats broke. maybe start by switching fan switch on stat to on. if fan comes on you have high and low voltage thereby eliminating the stat power and transformer as a problem. if you can see the ignitor look for it to be cracked . look close dont touch any part of it .it is powered by 120 volts when energized from board. dont forget when you take the door off there is no power to the furnace so be prepared to tape the safety switch closed when you are diagnosing.
Posted on Oct 24, 2008
That blinking yellow light is an error code. If you look behind the main cover there will be a wiring diagram and error code chart. This will give you an idea what the problem is.
Posted on Nov 07, 2008
H3 is shorted relay on control board and 133 is faulty control board.-----------In any case control panel board has to be replaced,
Click this link, below.To order the parts:--
http://www.partselect.com/ModelFrames.aspx?ModelID=275629&ModelNum=MERH865RAW13&mfgModelNum=&ManufactureID=1&Selected=LYJICYOM&Position=2&mfg=Maytag&Type=&Mark=2 ---------- Part number 6 in the link is control coard.That has to be replaced.This will help.Thanks.Helpmech.
Posted on Jun 24, 2011
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