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Old 08-29-2010, 11:22 AM   #1
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Ice forming on outside A/C Unit.


Can you give me any Ideas what will cause this? The end result is that we have no cooling inside the house. Ken

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Old 08-29-2010, 11:38 AM   #2
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Ice forming on outside A/C Unit.


Dirty air filter, dirty evaporator coil, low on freon, fan motor slowing down. Lack of airflow.

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Old 08-29-2010, 06:34 PM   #3
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Ice forming on outside A/C Unit.


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Dirty air filter, dirty evaporator coil, low on freon, fan motor slowing down. Lack of airflow.


Thanks Yuri. It looks like a call to the proffessionals. Question is when? This year or next year. Thanks once more. Ken
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Old 08-29-2010, 07:10 PM   #4
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Ice forming on outside A/C Unit.


How old is the unit and what make and model #? If it is leaking freon it may lose all of it over the winter and sit empty and get air and moisture inside it which will contaminate it. May be able to give better advice on whether it is worth fixing with model info.
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Old 08-30-2010, 06:07 AM   #5
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Ice forming on outside A/C Unit.


Unit is Carrier Model......38EH024320. SER No.5187E32731

Date code 1287..... Your opinion will be valued. Ken
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Old 08-30-2010, 06:18 AM   #6
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Ice forming on outside A/C Unit.


1987 unit. Not worth spending $$ to do major repairs on. I would get it assessed now to find out the problem ($100 service call) and then decide what to do. Compressor is quite worn due to age and evap coil may now have a freon leak or will develop one soon. 20 yr average life expectancy from my experience with them. In Canada we cannot LEGALLY top up refrigerant levels. HUGE fine for the homeowner and technician if caught. Repairs must be made and documented for the ozone protection people. If it froze up it slugged liquid refrigerant to the compressor and probably damaged the valves and shortened the life of the compressor. 8 SEER or less unit and not very efficient.
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Old 08-30-2010, 09:12 AM   #7
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Ice forming on outside A/C Unit.


how do you add refrigerant to a system that was undercharged?
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Old 08-30-2010, 12:59 PM   #8
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Ice forming on outside A/C Unit.


If unit is low on freon, homeowner will not be able to add it in. You have to be EPA certified and there is readings that will have to be done to make sure you get the charge right, which requires guages, and meters so you can check superheat and subcooling. If thats the true problem probably cost you about 150 to 250 to have done.
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Old 09-01-2010, 01:11 PM   #9
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Ice forming on outside A/C Unit.


We had the technician come today ( nice young guy,) He waved his instrument in the plenum of the furnance,& it indicated that freon was leaking from A/C radiator like thing that sits in there. Like the advisors on here, he said it was perhaps time to replace both A/C & Furnace.

His visit was followed a couple of hours later, by a follow up call by a Service Rep to discuss replacement of A/C, Furnance, Humidier, & Filter. All top of the line products (Trane)

Prices were very close to $9000.00 Can. With various Gov. & Prov. Rebates which end next March, it could be reduced to near $7750can....You could have knocked me down with a feather.
We are talking a 1150 sq foot semi detached bungalow in southern Ontario.
What say you?
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Old 09-01-2010, 01:24 PM   #10
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Ice forming on outside A/C Unit.


just have the evaporator coil replaced, that'll probably only run you about $1200. sure, it's an old system, but you have to think whether that kind of money is worth it in the long run. how long will you live there, are you really going to get anywhere close to that money back when you sell the place, etc.? 8 grand is a lot of money.
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Old 09-01-2010, 02:25 PM   #11
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Ice forming on outside A/C Unit.


He has an 8 SEER evap coil, replacement is 13 SEER and a gross mismatch. WILL NOT work properly. even if you spent 1200 that unit may lose the compressor soon and that is 1200 wasted. 1/2 that 8000 is for the AC and a reasonable price. We sell Lennox XC units for that price. Just the cost of owning a home. Every 20-25 yrs in Canada you need a new roof , furnace, windows for a lot of people. The sq footage does not matter. Larger units only cost me $100 more to buy. You are buying good quality Trane units if you want something cheap and cheaper go with Ducane/Air Flo , Rheem, Armstrong or other lesser priced units. You get what you pay for.
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Old 09-01-2010, 03:00 PM   #12
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Ice forming on outside A/C Unit.


true, going with a cheaper unit would surely save some money. in any case, my buddy just spent 18 grand on a new TRANE system (18 SEER, thing is ridiculous, almost as tall as me), so for what it's worth, the 8 grand sounds like a pretty good deal for the quality you are getting.
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Old 09-01-2010, 03:33 PM   #13
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Ice forming on outside A/C Unit.


Yep, LOTS of our average package sales are in the 10-12,000 range. Trouble is when you buy an AC unit 20 yrs ago for 1500 and now it is 4500 the sticker shock is huge. No different than cars. Fortunately I do my own HVAC and drive an old 89 Blazer. Going to have to replace the old gal soon.
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Old 09-01-2010, 04:15 PM   #14
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Ice forming on outside A/C Unit.


Quote:
Originally Posted by jankencanada View Post
We are talking a 1150 sq foot semi detached bungalow in southern Ontario.
What say you?
I put a 24,000 BTU AC in wall in my last house
Cost around $300 + some wood, 240v electric connection & my labor
House was 912 sq ft
Never turned it over Med setting
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Old 09-01-2010, 06:02 PM   #15
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Ice forming on outside A/C Unit.


Get other prices.

When a salesmen is just a few hours behind the tech. You need to look at more then just that estimate.

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