Question about Goodman Heating & Cooling

1 Answer

We just installed a new Goodman HVAC and the compressor lines freeze up. The technician that installed the unit cannot find the problem

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Contributor
  • 24 Answers

Not to be critical, but not much of a technician if he cannot properly troubleshoot the issue.

Several issues can cause the freezing problems:

1. Refrigerant charge issue.
2. Improper equipment sizing.
3. Air flow issues.
4. Metering device issue.

First is under charge. But before making this determination several other things must be diagnosed and resolved.

Was the unit sized properly using a heat load calculation? You may not know what this means but a reputable, knowledgable contractor does. If the unit was oversized, it can cause the unit to freeze. If the indoor fan & motor were undersized. it may not be moving enough air across the coil and this will cause the coil & suction line to freeze.

Air flow issues, such as obstructions in your ducting or across your evaporator coil will cause the coil to freeze, thusly your suction line will freeze as well. Is the filter and evaporator coil clean? Are there any obstructions in the air passages (duct)? Is the duct work sized properly. Improper sizing of the duct work may choke down the required return air flow, and cause the coil to freeze.

The last issue could be a problem with the metering device. If it is an adjustable thermostatic metering device, was it setup to maintain a 12 degree suction superheat? If it is a fixed metering device, such as a cap tube device or bullet (orifice) device, it mat have a restriction (ususally a piece of solder or flakes from the soldering process clogging up the inlet screen). To easily check this, thaw the system out, start it back up when thawed and look for frosting or ice accumulation at the metering device outlet side. I fit does this rather quickly, then the system must have the refrigerant recovered (or pumped down into the condenser) and the blockage removed.

If it is air related, this must be fixed prior to properly trying to charge a system. Unless the proper airflow has been established, charging the system, or checking charge cannot be properly performed.

Posted on Sep 04, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Bad condenser unit GOODMAN


it is a 3 ton condensor you still can buy r22 freon condensors new but they have nitrogen charge and its expensive to charge I recommend to go with 3 ton goodman condensor which is new 410a puron and also change indoor coil and flush the line set so you dont endure the high cost of new copper lines these new systems come with 10 years warranty and the r22 systems come with only five years

Feb 26, 2013 | Heating & Cooling

1 Answer

All the coils on the unit outside froze up


Hello, if the inside fan was not running then the evaporator coil cannot absorb enough heat to vaporize the refrigerant, and the suction line will freeze including the compressor. Liquid refrigerat instead of vapor passes thru the suction line into the compressor. Lack of airflow or a low refrigerant charge is what will cause the line to freeze. In your case it was no airflow

Jun 14, 2012 | Goodman Heating & Cooling

1 Answer

Have a Goodman AC unit (model: GSH130421AA) in my two story town home. The upstaris does not cool, however, downstairs does. The outside pipe(?) that leads into the AC unit was frozen; looked like a snow...


Hello, when the pipe freezes up it usually indicates a airflow problem or low refrigerant charge. Check the air filter, blower wheel for any dirt. Also, make sure the blower motor is running. If the airflow checks out good then the unit is low on refrigerant and must be recharged by a hvac technician.

Jun 04, 2011 | Heating & Cooling

1 Answer

Unit not cooling


Low on refrigerant charge! Low side line should be cold like a beer can at the inlet of the compressor with some sweat beads around it. 55deg. The discharge should be around 125deg just hot enough you cant hold it long!

Jul 26, 2010 | Goodman CKL60AR60 Air Conditioner

1 Answer

3 year-old Goodman compressor/heat pump terribly loud @ start


I don't think this problem (btw I agree 'from a far distance' with the Hvac guy) is inherant to Goodman, after all the compressor (that is in the unit) is one that if found in other brands too.

Of course the compressor is under warranty so there's no charge for it - but - $800 to change out the compressor (and that's the proper fix) is a 'bit' high - you possibly could save a few bucks by getting some other estimates.

good luck!

May 09, 2010 | Goodman CKL60AR60 Air Conditioner

1 Answer

Air compressor keeps freezing up...copper line had been without insulation until yesterday, but this didnt fix the problem. Unit is a 2 year old Goodman


The thermostate is not working properly, thermostat sense the temperature of the sitting and it work like a switch cutting compressor on and off. When the thermostate sense the correct sitting of the temperature and it suppose to cut off compressor to allow the evaporator to warm up a little if the thermostat switch is faulty and it does not recognize the temperature although it will keep the compressor running until it freezes up just like froze water stuck in the line.

Aug 13, 2009 | Goodman Heating & Cooling

1 Answer

Goodman furnace was installed on its back- Problem?


The furnace can not be installed with the doors facing up. It will not work properly and yes it is dangerous. The unit needs to be flipped to its side, and the plenums and the ducts need to be changed around along with your Flue (vent) pipe, and gas line. HVAC-R Tech

Feb 04, 2009 | Goodman GMS90703BXA Heater

2 Answers

Goodman unit freezing outside the unit


Its not the thermostat.

The things that can cause this problem are lack of or poor airflow over the Evaporator coil. Or a low system charge. Or quite possibly a restriction in the line on the low side. When they replaced the compressor did they purge the line set with nitrogen and pull a deep vaccum? This is imperative when replacing a condensing unit to ensure that no residual particles are left in the line set to create a restriction.

Hope this helps You
please rate me

Jul 24, 2008 | Goodman CKL60AR60 Air Conditioner

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

191 people viewed this question

Ask a Question

Usually answered in minutes!

Top Goodman Heating & Cooling Experts

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

paulcarew

Level 3 Expert

2457 Answers

Brandon Berry
Brandon Berry

Level 2 Expert

407 Answers

Are you a Goodman Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...