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Furnace locks out and flashhes once...it's a GUVA070BX40 Have cleaned out the condensate trap and that worked for a week...now it's locked out agaain.

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Check again. what does single flash mean. check the termination points outside to see if frozen over.

Posted on Nov 26, 2008

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The coils jeep freezing up I have cleaned the filter


usually means Freon charge is low, you might have a leak..... also, filters don't catch everything. over time what gets past the filter can be trapped in underside of the evaporative coil on top of your furnace..... outside condenser coils may be caked with debris, improper air flow threw coils can produce liquid Freon back to evaporative coil causing it to freeze..
hosing the condenser down will resolve freezing up too

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How to clean clogged condensate drain of ruud furnace achiever 90 plus


You can easily blow through the drain with pressurized air through the p trap. There could be a number of reasons the furnace side is not working. In the case of windy conditions there is a possibility that your pilot will need to be adjusted or the flame sensing rod might need to be cleaned. If the pilot wavers off of the sensing rod it could cut off the heating cycle because the system could not verify a flame yo bring on the main gas valve to continue with the cycle

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Ruud achiever 90 plus furnace-water leaks from the drain pipe


This furnace should condense, as long as it goes into the drain. If it is leaking inside the furnace, there may be a seal that needs replacing in either the pvc drain pipe or concentric drain trap needs resealed.

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What could cause carrier fault code 42 besides bad inducer


Could be several causes.
1. Blockage on piping
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4. Inducer motor going bad.
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1 Answer

Ruud achiever 90 plus


Check the exhaust condensate trap to see if anything came loose when servicing.

Dec 15, 2013 | Air Conditioners

2 Answers

I went downstairs to start a load of clothes and noticed water under my furnace. My A/C is running and I had it cleaned a few weeks ago and the unit itself had to be charged. It has run beautifully and...


Hello, most likey if the unit is cooling and there is no visible ice on the suction line then it is probably a cloged condensate line that will need to be cleaned.

Jul 11, 2011 | Air Conditioners

1 Answer

I have a GMPN080 horizontal gas furnace in attic of my home. What is the purpose/function of the drain trap assembly in furnace. Cooling coil is external to furnace?? Please advise, looks as if someone has...


The reason for the trap is to compensate for the negative pressure the drain line is under. Since the blower is pulling the air, if the trap wasn't there, then the drain wouldn't drain properly.

By having a trap, your blower is pulling air back through the trap while the condensate water is allowed to flow and drain.


With that being said, if you have water forming in your emergency pan, its an indication that the main drain line is clogged up. If you know where the drain line exits the home, take a small shop van and vacuum out the drain line. If its really backed up, it will sound like a golf ball through a garden hose.

If your trap has a clean-out installed, I would recommend pouring some hot water and bleach combination down the trap itself after you have cleared and flushed the drain. The bleach will assist in killing any mold/mildew that has accumulated in the drain.


Also, while your in your attic, ensure your emergency pan has a float switch and that its operating properly.


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1 Answer

Amana Air Command 90 - Model GSC075A30A


water should never reach the nipple for the pressure switch tubing on the IDM. Check the entire condensate drain system for obstructions. Verify water makes it from the furnace location to the outside drain. Flush p-traps and any anti-siphon devices thoroughly.

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Goodman 90% gas heater condensation build up


If the exhaust comes off the top of the furnace, you will need to make sure the condensation will drain all the way back to the condensate outlet found at the base of the inducer blower. If you are having to remove the tube from the pressure switch, there must be a blockage from the inducer down to where ever it drains to. Check to see if all tubes are free of blockages and if there is a condensate trap, clean it out. If the pressure tube you mentioned is facing up toward the blower allowing water to flow into it, reposition it so water will not enter the tube.

 

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