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I have a Goodman ARUF036-00A-1 air handler. I found after the house heated up that the coils in the unit were frozen solid. The freon is ok but I beleive that the air flow was to low from the fan. It seemed, even though the fan was turning, that it was on a low speed. What controls the two speeds in this unit and what possibly is the problem.

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There should be a fan control center for the unit to switch from hi speed for cooling, lo speed for heating.

Posted on Jul 28, 2010

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2 Answers

Concept 1000 ac unit. Fan comes on but no air come into the house and the line freezes outside next to the unit. I'm lost!


Check your indoor air handler unit. If the coil is frozen, it is usually one of two problems. You are low on freon, or your filters are clogged and not allowing enough airflow over the coil.

Mar 20, 2017 | Heating & Cooling

1 Answer

Ruud ubha-21j00nuaa


Can you see the condition of the coil itself? If it is blocked this could be a cause for the frozen coils. Also, check the condition of the blades on the indoor fan. Dirt and dust accumulation on the blades reduces airflow.

Jul 14, 2014 | Ruud Handler Air Conditioner

1 Answer

HE heat pump won't talk with old air handler?


The fact is, the air handler supplies the voltage, blower, and electric heat. In order for the heat pump to work correctly, the wiring from the thermostat and heat pump need to be hooked up right to the air handler. The thermostat is what tells which component to come on. If the fan stops, but the condenser keeps going, you either have a faulty fan relay on the air handler, faulty thermostat or wiring, faulty wiring at the heat pump, or the contacts on the new unit are sticking, which is highly doubtful considering it is working now. I hope I have helped you understand this a little more. Good luck and don't let them push you around, get someone that knows what they are looking at.

Jul 18, 2012 | Goodman Heating & Cooling

1 Answer

Goodman/Amana air handler freezing up and not cooling home. What could be causing it?


Hi,
There are two things that cause freeze up's...

Low air flow...

Low freon...

First check the filters, the blower , and the air vents to make sure that the air handler unit can move enough air...not enough air across the coil, the coil gets too cold, ice forms....


The low freon problem will require professional assistance...
For the system to be low there needs to be a leak...the leak must be found and repaired or the fix will only be temporary...
To do this the system refrigerant must be recovered, the leak fixed and then the system vacuumed and recharged...

One other thing....outdoor air temperatures under say 65 F can also cause freezing.... but I am assuming that you are above that if you are running your A/C system.


AirConditioner Trouble - Review the Possibilities

heatman101

May 25, 2011 | Amana Heating & Cooling

2 Answers

Hello, my HVAC is constantly freezing, even after freon is added. I was told that I have a leak in the coils and need to chance the air handler - the outside unit is about 10 years old - air handler about...


Hi,
No you can not use a R-410 air handler with a R-22 condenser unit...the exspansion devices are different as the properties of the refrigerants are enough different that they are not interchangable...
Really your only choice is to replace the whole unit as it sounds like the exspansion valve or the orfice is partially clogged and it makes you constantly freeze up....
There are some things you could do to make it work at reduced capacity but it is way beyond what I could tell you through a computer...

heatman101

Sep 08, 2010 | Goodman CKL42AR42 Air Conditioner

1 Answer

Extremely long time to get cool air with 5 ton 13 seer goodman heat pump which is 3 years old.


Check your filter. Make sure it is clean. Make sure the outdoor unit is operational. (power on). Clean your condenser coil with a garden hose. If possible check your evaporator coil. If it is dirty clean it. Your furnace (or air handler) blower speed should be set on high. All of your registers (supply & return) should be open and unobstructed. Check for proper thermostat settings. If none of this information solves your problem , then your units charge needs to be checked. You could be over or undercharged with freon.
Good luck......

May 06, 2009 | Goodman Heating & Cooling

1 Answer

Evaporator Coil


Yes, just count how many pins per inch and replace with the same number of pins per inch.

Sep 09, 2008 | Heating & Cooling

1 Answer

Goodman 3 1/2 ton unit


I work for a very large reputable goodman dealer. Your equipment appears to be a correct match. The correct orfice should have been taped to the outside of the outdoor unit in a baggie right beside where the pipes connect. Things will run alot smoother though if you scrap the orfice and have a TXV installed (thermal expansion valve) . This is a mechanical device that adjusts the flow of freon into the indoor coil based on the immediate needs of the coil. After that, balancing the refrigerant is a piece of cake as all we need is about 10 degrees of subcooling to make sure we have plenty of liquid to the TXV.

Jun 08, 2008 | Heating & Cooling

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