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  1. HVAC
    I hear this sound, sort of buzzing / sizzling originating I assume within the air-handler when I am near the main A/C return. The return is ceiling mounted with the air-filter in my hallway. I have a UVC-germicidal lamp in the air-handler. I can't imagine it's frying any insects, I didn't...
  2. HVAC
    My wife and I recently moved into a new home. The HVAC system is 2 years old. I have a few questions that I was wondering you can help me out with. I've taken detail picture of the exterior furnace exhaust with measurements. Please see pictures: As you can see from the pictures, the vent...
  3. HVAC
    Having an issue with my hydro air American standard (trans) central a/c unit. Model 7A0030A100A1. The exterior unit has a weird noise when turned on. I tried replacing contractor and capacitor as well as relay on the interior air handler but no luck. Please see video link for noise. American...
  4. HVAC
    I am looking to replace my central A/C system. When I bought the house it had an ICP CA5030VKB1 cooling condenser (date 8/91) which I believe is a 2.5 ton. I've checked several online calculators and all have suggested I purchase either a 3.5 or 4 ton system. (Few basics: house is 2132sq. ft...
  5. HVAC
    I've been seeing the recent rise in popularity and efficency of mini-split heat pump systems for both heating and cooling. I'm interested in trying one out in my house. One thing I've noticed is that manufacturers are really pushing the DIY install angle, either with pre-charged sealed linesets...
  6. HVAC
    Recently I've been having issues with my AC. First it was a leak in the line set and then it was the time delay module, back to back in two days. Now I noticed that my zone two seems to be working only if I turn off the thermostat on floor 1. I am wondering if its the damper or damper motor or...
  7. HVAC
    Hi everyone: While I'm doing research on a new furnace, I have no central A/C. For that reason, I pulled out an old air conditioner to use in my window. However, that window A/C unit is filthy inside. I don't think I ever cleaned it after about 8 to 10 years of use. A couple of years ago, a...
  8. HVAC
    Hello all, I am installing a mini split A/C in my garage, which I am turning into a living space. So the question is: Do I install it before insulation/dry wall (A/C lines inside the wall) or after insulation/dry wall (A/C lines in the exterior)? I see the value of putting the lines inside the...
  9. Electrical
    Hello all, I am definitely not strong in electrical work and I am trying to figure out what wiring/fuse/disconnects I need for this installation. I will be installing a 12000 BTU Senville unit and this is the information listed in the specs: Power Supply 110V Minimum Curcuit Ampacity 15A Max...
  10. HVAC
    Hello, I was talking to EcoBee's Customer Service and they had me switch a bunch of wires in my furnace, only to find out it was a bad PEK and Ecobee unit... Long story short, I'm trying to hook up my old thermostat again and I keep blowing my 3 amp low voltage fuse when I try to turn on the...
  11. HVAC
    Couple nights ago I noticed it was getting warm and muggy in the house. The a/c fan was running in the house, but the air coming out of the register wasn't cool. Went out to the yard and saw that the condenser fan wasn't running. Took the cover off and saw that the capacitor top was domed...
  12. New Member Introductions
    I had the A/C of the condo I recently purchased inspected prior to making an offer on the condo. At that time the technition that inspected it told me the A/C worked, but that it was leaking freon and eventually will need a new capacitor and contactor. At closing I was given a home warranty...
  13. HVAC
    I need a little help. I have a RUUD Ultra Series. The compressor kicks on and then shuts down in just a couple of seconds. After it shuts downs, the fan spins. I've replaced both capacitors because the fan run capacitor looked bad on top. The ICC board is giving a error code of 5. I've...
  14. HVAC
    Hello DIY Chatroom! I recently installed a NEST thermostat to my Lennex HVAC system. Related or unrelated, I noticed since i installed the thermostat, that my air conditioner (outside) has been humming more and is now making a rattle which can be heard all the way thru the lines in my basement...
  15. HVAC
    Hello, We just bought a new house and it has three heat zones (boiler heat) and 1 a/c zone. So the house has four thermostats. Is it possible to combine all of the controls to one central unit? I am sure the a/c was installed after the home was built, so that's why it's separated, but just not...
  16. HVAC
    Looking for ideas on what to do for central air and humidifier. On a one level ranch style house, a full size basement, and an oil fired boiler; baseboard heat throughout the main level with 3 zones including 1 for the indirect-fired water tank in the basement next to the boiler. I have a fully...
  17. Automotive Repairs
    I have a problem with my 2012 VW Passat that several mechanics (including the dealership) have been unable to solve. Whenever I drive at highway speeds (usually around 70 mph) the air conditioner stops dehumidifying the interior and does not blow as cold as when I drive on the streets. The...
  18. HVAC
    hvac puzzler-blower fan not working on "on" or "cool", but does on heat Would be grateful for any insight and assistance on this issue which started 3 days ago. I am going to try to be brief, but I might accidentally leave out an important detail. So please let me know if I do. Realized a/c was...
  19. HVAC
    Hey everyone, Just in time for a heat wave, our a/c went out today. When I went to turn it on for the evening before bed, it wouldn't start. The fan is not coming on at all. I looked at the fan outside, and it looks like the capacitor is old and rusted over. But, it doesn't sound like the...
  20. Electrical
    Hi folks. I am installing a 30amp Eaton DPF221RP fusible pullout a/c disconnect, but Im using it as an appliance disconnect instead. It did not come with any instructions about how to wire it. I have quite a bit of experience with wiring, so I'm feeling pretty stupid right now. Here's what I...
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