I purchased a 6 year old house (bank-owned foreclosure) about one year ago. The WeatherKing HVAC system worked just fine. Now, it is not cooling at all. Tech says compressor valves have failed. He says the compressor is a 5-ton unit, while the inside coil/fan unit is rated at 4 tons. Home warranty insurance company (Old Republic) is denying any coverage. They say failure of valves is not due to normal wear and tear, but due to mismatched system. This does not seem correct, as the system worked fine for 6+ years. Any thoughts/comments? House is in Palm Springs, CA area.
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Re: Compressor valve failure
That is not correct. The system is not mis-matched. They just put a heavy condensor outside to get more air volume for your house. The failure of the valve is not to common of a failure but can and will fail. The problem with Palm Springs is the weather you get there, From very hot to very windy with sand storms to freezing rain and sometimes snow depending on where you are. What is the tech wanting to cahrge to replace the valve? Also this is something that should have been looked at closey and examined before the home was bought and that should have been known by the realator
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Foreclosure is a situation in
which a homeowner is unable to make principal and/or interest payments on his
or her mortgage, so the lender, be it a bank or building society, can seize and
sell the property as stipulated in the terms of the mortgage contract. http://www.investopedia.com/terms/f/foreclosure.asp
It sounds like your compressor is either not running or is low on refrigerant. If it is low on refrigerant it means you have a refrigerant leak somewhere in the system. The leak would have to be found and repaired or the unit is going to keep leaking down every time you pay to have it recharged.
Two possibilities, one, the heads have valves in the bottom of them, and they are controlled my the water pressure in the tubing. You should have one valve, or possibly your meter, that turns the system on, but thats it for valves. The second possiblity, is hydraulic valves. The tubing from your controller goes to valves in your lawn that are controlled hydraulically. In both cases, as long as the tubing is pressurized, no water flows. Once your controller stops the flow of water to that particular tube, water flows.
Either way, if you have that controller, you don't have electric valves. Hope this helps.
I have the exact problem. My unit is 6 years old too - purchased in 2004. I have located, after cleaning the coil under the unit, this is not the source of the real problem. I took the upper cover off which houses the main logic board to find if I flicked the comp relay "compressor" the compressor then turned on. I took amp readings before and after they were .2 without the compressor running and 1.3 with the compressor on. The main board will need to be replaced. Personally I will try to locate the actual relay and replace it on the board if possible.
Unless your compressor is burnt up, you probably don't need a new unit. If it's a 1998 it's not that old and you can get parts, the only thing is it's probably R-22 refrigerant and they must fix the leak in the unit if that's the problem before adding refrigerant and the refrigerant is expensive.. All they have in a heating and cooling system, that needs replaced, are a few parts. Outdoor unit has a fan motor,compressor, capacitors fan and compressor and a contactor. Furnace has a blower motor, capacitor, gas valve, fan and limit or furnace control board, which they still make replacement parts for.
My advice would be to call some more HVAC companies, till you find one, that is willing to fix your unit and not replace it..
Your warranty on your WeatherKing is five years on the compressor. When you buy a compressor to go in your unit it is 1 year. Several resons for bad valves. Dirty evaporator coil, overcharged and bad evap fan motor. James
1. are you using the right type of capacitor. you need a "start" capacitor not a run capitor. make sure that capacitor is the proper size.
2. have you tried a hard start kit?
3. is their oil in the new compressor?
4. was the old compressor for r-22 or 410a?
5. is the new compressor for the proper refrigerant?
6. is there refrigerant in the system?
7. is it wired right?
8. is this a heat pump? if so is your reversing valve operationing properly?
9. was the old compressor a mechanical or electrical failure?
if electrical did you install a new filter drier?
10. just because the new compressor is new does not mean it is good
11. do you have the proper voltage?
If it is five years old it is either right in or out of warranty a service tech can determine this through the serial number. If not the unit is only a little bit more to replace than the compressor. A replacement compressor is only warrantied for one year verses a unit replacement with five years on the compressor and one year parts and labor.