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I have a Bryant furnace that is not heating. it comes on and the blower blows air, however it's cold. i looked in the window where the fire should be and there's nothing. there's no LED codes blinking on the control card. This is the first time i've tried to run it this season. the LP tank says that it's 30% full. Do you think the gauge could be bad and i'm actually out of LP? thanks for your help.

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  • Contributor
  • 14 Answers

I would need to know the model of the unit. it could be a number of things depending on the unit - is it hi eff?

Posted on Aug 02, 2017

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Posted on Jan 02, 2017

hotuna
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SOURCE: MHU 75 Model Mr. Heater

The roll out switch is a small disc shaped part about the size of a nickle. There may be more than one. anyway there is a button shaped like a small peg in the center if it, push it in and it should stay in. You may need to re examine the limit switch, because this is what it sounds like. they are rated for a set temperature, so your application may need a higher temp. A simple way to check parts like these is to by-pass them by taking the wires off the part and connecting them together. If this solves the problem, that it. My only concern is that this is a new installation, and maybe its not venting adequately or its burning up all the usable air in the room. That's why most of these parts are on the equipment.

Posted on Dec 24, 2007

aries_67
  • 1 Answer

SOURCE: 1993 goodman status light 4 times blinking

I have a goodman GMP075-3 that won't turn on. I think it is the pressure switch since I do not have a vent blockage. What is a venter and where can I find it??

Posted on Dec 30, 2008

  • 9 Answers

SOURCE: furnace flame goes low fan stays on

if the gas pressure is good on inlet and outlet of valve u might wanna chk the burner trays and manifold for flakes, dirt, spider webs ect... once u kno the passages are clear from obstruction you can focus on the mechanical. (sounds like gas valve may be getting weak and not able to open fully)

Posted on Mar 22, 2009

Therinnaiguy
  • 1420 Answers

SOURCE: Bryant Plus 90 Furnace - Blower works fine and

PRSSURE, DRAFT SAFGUARD, AUX-LIMIT SWITCH(WHEN USED)OR BLOCKED VENT
SWITCH(WHEN USED) DID NOT CLOSE OR REOPENED (DOWNFLOWONLY)
If open longer than five minutes, inducer shuts off for 15 minutes
before retry.
Check for:
* proper vent sizing
* defective inducer motor
* restricted vent
* excessive wind
* low inducer voltage(115VAC)
* defective blower motor or capacitor
* defective pressure switch
* inadequate combusstion air supply
* disconnected or obstructed pressure tubing
If it opens after trial for ignition period, blower will come on for
90 sec. recycle delay.
Check your air filter for blockage, check pressure switch for a buildup of moisture. Make sure your inducer motor is turning and creating a vacuum to the pressure switch. Make sure all venting is clear and free of water or debris. Make sure there is no water in inducer motor and all drains are draining.

Posted on Jan 28, 2010

Therinnaiguy
  • 1420 Answers

SOURCE: Amana Air Command 80 SSE gas furnace will not stay running

In the path of the flame on the last burner that starts, there will be a small rod. That rod is the flame sensor. Take a scrub pad and polish it. Also check the electrical connection that goes back to the circuit board. Disconnect any ground wire from the circuit board to furnace cabinet, sand it and replace it.

Posted on Mar 14, 2010

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Have a great evening.
Sincerely,
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