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  1. HVAC
    I have a 10-year old Lifebreath 200 Max HRV. It stopped completely a few months ago, and my local repair guy and I are at our wits' end trying to make it run again. (I live in a rural area so help is hard to find.) The fan spins freely by hand and starts up fine when we hot-wire it directly...
  2. HVAC
    This is an interesting one. My Carrier gas furnace will run a complete heat cycle (thermostat set to 70, furnace will heat to 71, and then stop as expected). Right after it stops, the red LED on the circut board will turn off, making it appear that there is no power going to the circuit board...
  3. Electrical
    When a large appliance starts, should I expect the lights to dim? I think lights dimming means that the voltage is dropping. Is this really hard on appliances? Or is it hard only in theory? In some ways I tend to think nothing bad will happen if I don't fix the problem. I think I have too...
  4. HVAC
    I need to replace a circuit board in an Aprilaire 800 humidifier. My unit has 2 circuit boards. The top one is the one that needs replacing. Any tips for this replacement? Thanks for any help or advice!
  5. Electrical
    Dear experts, I need to replace service, meter, pipe, and 40 circuit panel. Is $2,000 a good price to pay in Connecticut? Thank you very much.
  6. HVAC
    I have an old furnace that is not working properly, a Carrier model 58SE150-3 series 314 from 1975. I have diagnosed the problem to a likely fused fan blower relay. In looking over some of the other forum posts people seem to recommend that I not replace the relay directly (a Potter and...
  7. HVAC
    hi totally new to all this. I like to think I'm pretty handy but I'm having some problems with my ac. OK Havc was running fine since I bought my house about a year in April , up until July it started acting up. I have a guy supposely come out and give it a tune up maintenance thing, you know...
  8. HVAC
    :( Furnace under 5 years old and in warranty and with a maintenance contract. Since install over the past few years, there has been an intermittent issue of the blower continuing to run after system reaches temp set by stat. Blower continues to run for 60 - 80 minutes continuously after burner...
  9. Electrical
    I have this car alarm that my sister pulled from her car before it was impounded. All I have is the main control unit and I do not have the plug or wires that connect into the main unit. I was planning to solder each wire to each of the pins, but I don't know what all the letters mean on the...
  10. Electrical
    There is down the stairs a lamp with 2 bulbs. One is controlled by apartment A (by both a switch at the bottom of the stairs and 1 within the apt.) and the other by apartment B (which also has its own control with switches up and down). Up the stairs there is another lamp with 2 bulbs also...
  11. HVAC
    I am replacing my Heatcraft circuit board with a Lennox Surelight 83m00. The names of the connections don't match (even though HC is a Lennox company) could someone tell me which connectors from the HC to the Lennox connectors? Thanks.
  12. Electrical
    I would like to make a very short LED light string for a Christmas ornament. I would like to make the string with a total of 9 lights; 3 red, 3 yellow, 3 green. I would like to power this string on a 3v coin lithium battery. What I currently have...3mm LED's, some perf-board, momentary tactile...
  13. HVAC
    I have a Bryant heat pump with a bad blower circuit board. There is a loose connection in it and the blower doesn't come on when it should. I have ordered a new board. While waiting for the new board to arrive, is it OK to jump the fan relay leads to run the fan constantly? Thanks.
  14. HVAC
    Hi all, New to the forum. Old hat DYI'er. History: While running AC the system reached temp and shut off correctly (presumed). Then it simply refused to start. I wanted a new thermostat anyway (for energy savings reasons) so I bought one and things started and worked fine ... for two days...
  15. Appliances
    Hi! I have a Whirlpool Gold Side-by-Side Refrigerator, model GD2SHAXKQ02. The ice-maker is now making trouble instead of ice. :( It looks like the ice-maker eject levers are working (they are spinning slowly), but there is no water coming into the ice-maker unit. The water dispenser on the...
  16. HVAC
    Yesterday I noticed it was getting hot in the house so I found out the air conditioner was not running. The fuse looked like it was possibly blown so I replaced that and still nothing. I then checked for power on a voltage meter and power was there. I have talked to my father and he said it...
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