Question about Goodman GMS90703BXA Heater

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Condensation in heater box area

Heater not working. Per repairman circuit (pc) board needs replacement. He noticed a puddle of water accumulating underneath the circuit board which may be the cause of this problem. What could cause the condensation in the heater box area? The unit is stationed in the attic area of the garage in a single-story house. The model is Goodman GMP050-3 Serial number 9408120443.

Thank you.

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  • rver2go Dec 21, 2008

    Not really, but I'll try it out.


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Condensation from the outside air is getting into unit! Either the condensation pump is broken or the air intake has a leak and water is getting in through there!

Posted on Dec 19, 2008

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Condensation is being formed somewhere else and probably leaking into the heater box, apply some foam to the box to stop condensation.

Posted on Dec 19, 2008

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How to repair an Electric Water Heater that Fails to Heat Water

If your home has an electric water heater that is not working properly, start your troubleshooting here When an electric water heater fails to heat water, either the power to the water heater has been interrupted or there is a problem with the controls or heating elements. Perform these diagnostics:

1) Be sure electricity is being delivered to the appliance. Check the main switch on the water heater and the circuit breaker (or fuse) that serves the water heater. If the circuit breaker has tripped, reset it by flipping it all the way to OFF and then back to ON.
If a fuse has blown, replace it with a new fuse with the same rating. If the circuit breaker or fuse repeatedly blows out, call a qualified electrician to check and repair the circuit. Note that the water heater should not share a circuit with another appliance—it draws too much power when heating.
2) Check the high-temperature cutoff in the water heater. Open the panel and push the reset button. If the button doesn’t make a clicking sound or you still don’t have power after pressing it, then your high-temperature cutoff is probably bad. Call an electric water heater repairperson.
3) If there is any water inside the compartment, this could cause the thermostat to malfunction. Leaking water means that your water heater may need to be replaced. If this is the case, be sure to read the “Storage Water Heater Buying Guide” and related buying guide articles before making your purchase.
If these steps don’t solve the problem, you may have a problem with your heating elements. You can replace these yourself following the manufacturer’s instructions if you feel comfortable with this type of repair, or call a water heater service professional.

on Sep 03, 2010 | Heating & Cooling


Wick won't light

I didn't realize how quickly condensation can enter the tank. Condensation will ruin the wick permanently, even a brand new wick.
To avoid condensation, do NOT empty the tank unless you are replacing the wick, or some other repair requires it. Likewise, do NOT burn the kerosene out, for the same reason: condensation.
When the tank is filled enough, condensation can still enter but the wick will be able to burn and you won't know the difference. But as soon as the kerosene is gone, all the wick has is water. 
STORAGE:  When you burn out the kerosene to store it, condensation can enter and you will not be able to use the wick again. So unless it's necessary, don't burn out the kerosene.
If you have to store the heater in a place that requires the tank to be empty, dissassemble the heater before you use it again and make sure the tank is completely dry and contains no water BEFORE you use it again.
I think but I'm not sure, that the tank must have been designed to let some condensation fall to the sides, or somehow get out of the way. But I'm certain this doesn't last because condensatiion is inevitable and it will accumulate. 

on Nov 10, 2008 | Corona 23-DK Compact Heater

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Jul 13, 2011 | Goodman GMS90703BXA Heater

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5 Answers

Water leaking out the bottom of my Furnace

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Dec 20, 2009 | Goodman GMS90703BXA Heater

1 Answer

My heater does not turns on, the circuit board without fuse, makes the inducer motor work. this is a goodman heater.

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