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Do you have your home HVAC system maintained? #5445125 06/03/20 09:21 AM
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E150GT Offline OP
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Just wondering how many people have their AC system maintained yearly by a professional. I have owned a home since 2012 and I only ever called an HVAC guy when my system was not working properly to to have them sell me a new unit. I had two new units installed at my duplex in 2016 and 2018 and I just called had a service done on them last week. I have not done anything to my house yet and not sure that I will as they system is 23 years old and super loud and inefficient. Im saving my pennies for a new one. Thinking about getting a nice two stage or variable unit but I will make that decision when I see how much they cost. I bet theyre high dollar.


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Re: Do you have your home HVAC system maintained? [Re: E150GT] #5445130 06/03/20 09:30 AM
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skyactiv Online Content
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My parents have a variable AC at their home. The system cost $13k. It's always on in the summer which is great as it really draws humidity out of the air. So it will be comfortable at 77 for an older woman(mom) while my dad doesn't wanna feel might . You don't do such a system for energy savings or reliability, only comfort.


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Re: Do you have your home HVAC system maintained? [Re: skyactiv] #5445139 06/03/20 09:42 AM
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Originally Posted by skyactiv
My parents have a variable AC at their home. The system cost $13k. It's always on in the summer which is great as it really draws humidity out of the air. So it will be comfortable at 77 for an older woman(mom) while my dad doesn't wanna feel might . You don't do such a system for energy savings or reliability, only comfort.

Thats what I have read. Just last night my wife complained it was hot in the bedroom. The house was 74. I am sure its because it runs so little. I think its oversized. 3.5 tons on a well insulated 1900 sq ft house. I got a hygrometer and it shows about 55% humidity. That seems to be ok from what I read.


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Re: Do you have your home HVAC system maintained? [Re: E150GT] #5445140 06/03/20 09:42 AM
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azjake Offline
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I have an annual service as part of the 10 year warranty on the unit (installed in 2017). It's a heat pump so it also is used in the winter months. Trust me you don't the unit failing in the middle of the summer here in Phoenix.


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Re: Do you have your home HVAC system maintained? [Re: E150GT] #5445143 06/03/20 09:47 AM
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zzyzzx Offline
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I do an inspection and cleaning myself.

Re: Do you have your home HVAC system maintained? [Re: E150GT] #5445145 06/03/20 09:49 AM
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laserred96gt Offline
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Heres my two cents on that, HVAC companies don't really make much money on Maintenance contracts, a lot of the bigger companies will send their least experienced guy who gets paid the least to basically clean your drain line (which you can do yourself) or try to sell you a bunch of bells and whistles you don't really need, ( UV lights, surge protectors, duct disinfecting sprays and whatever else is out there for them to make their trip worthwhile).


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Re: Do you have your home HVAC system maintained? [Re: E150GT] #5445147 06/03/20 09:51 AM
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skyactiv Online Content
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I will also add they had a whole house dehumidifier in the previous system. It added heat to the air which wasn't ideal.


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Re: Do you have your home HVAC system maintained? [Re: E150GT] #5445154 06/03/20 10:00 AM
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laserred96gt Offline
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I will also add that to date theres no HVAC system known to help treat menopause.


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Re: Do you have your home HVAC system maintained? [Re: E150GT] #5445158 06/03/20 10:04 AM
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I used to have HVAC person came once a year until I am not sure what happened to him.
But during that time, I watched what he was doing.

The most important thing to do is wash the outside condenser once a year (at least).
It will make the AC runs better and cooler.
I also check all the capacitors with capacitance-meter when I opened the AC in the spring.
I bought some Algae prevention tablets and drop it in the bottom pan of the evaporator.
Make sure the drain pipe is not clogged (blow air into it).

Other than that, make sure the AC filter is changed frequently (depends on what type of filter used) to keep the evaporator clean.

Once every 2-3 years, I call somebody to check and make sure the refrigerant pressure is good and the Amp draw is within range.

So, no I don't have a pro maintenance but I DIY.

Last edited by JMJNet; 06/03/20 10:06 AM.

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Re: Do you have your home HVAC system maintained? [Re: zzyzzx] #5445159 06/03/20 10:04 AM
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Bud Offline
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Same here.


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Re: Do you have your home HVAC system maintained? [Re: E150GT] #5445160 06/03/20 10:06 AM
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Any Motor on a Furnace or Air Conditioner (or Refrigerator) will have a Start Capacitor.
They are easy to Check and Replace using a Multi-Meter.

I would suggest everyone have a 'spare' (only cost $12.00)

I hear they go bad frequently (A/C Units sitting outside) in the South because of the heat.


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Re: Do you have your home HVAC system maintained? [Re: MasterSolenoid] #5445165 06/03/20 10:13 AM
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Originally Posted by MasterSolenoid
Any Motor on a Furnace or Air Conditioner (or Refrigerator) will have a Start Capacitor.
They are easy to Check and Replace using a Multi-Meter.

I would suggest everyone have a 'spare' (only cost $12.00)

I hear they go bad frequently (A/C Units sitting outside) in the South because of the heat.

Very good advice.

Re: Do you have your home HVAC system maintained? [Re: E150GT] #5445170 06/03/20 10:16 AM
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Danno Offline
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I had a new furnace and AC installed 5 years ago. Mostly tile flooring in the house. I make sure the fan and filter is clean. The outside condenser is clean.

Carry on.


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Re: Do you have your home HVAC system maintained? [Re: E150GT] #5445173 06/03/20 10:17 AM
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$13k for a new unit is way too much. Mine was installed 3 years ago with Bryant heat pump, two stage heating and cooling, programmable thermostat, UV Lamp (a good idea if prone to mold), and two additional cold air returns, all for $7100.

It came with a free 2 year service contract, so I let them do that to see how it went. I did not like the fact that each time they checked the Freon pressures, they would waste a lot of it to the atmosphere. The only other thing was to clean the drain line and check the current draw on the compressor. Needless to say, I did not continue the plan after the free period. I asked them if the refrigerant was low, would it be included in the warranty/maintenance. When they answered NO, that was that, done. I do all that myself now, maybe twice a year. I don't check the pressures.

The following year, the starting capacitor went out, so I did that myself. Cost about $20.00 complete since I had to get some connectors and a bracket. I split the CAP to two separate units.

The thermostat controls the dehumidification, but its lowest set point is 50%, which is where i keep it. The house usually runs 55% humidity and it's comfortable. The programmable thermostat is nice, since I cool the house down in 4 stages overnight. Daytime is 77, 7PM is 75, midnight it goes to 74, and about 4 AM it goes to 73. With the dehumidifier function, on rainy nightts it may go a degree below those set points, but it works out very well for sleeping!

Re: Do you have your home HVAC system maintained? [Re: zzyzzx] #5445176 06/03/20 10:19 AM
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Originally Posted by zzyzzx
I do an inspection and cleaning myself.


Same here.


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