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pressure switch

  1. Short burst by Blower Fan YORK AFFINITY YP9C (97% Efficiency)

    HVAC
    We have the above mentioned natural gas furnace and it is about 6 years old. For past two weeks I have been noticing that at the end of the cycle when the blower suppose to blow the air at high speed (typically this last up 40 to 50 seconds) it is lasting only 15 to 17 seconds and it dies off. I...
  2. Gurgling water in trap with pressure switch on error

    HVAC
    Hi everyone! I'm learning a lot about furnace repair this season. A week ago, I replaced the control board on my Goodman after the HVAC person said it was faulty. Instead of paying them $700 to replace it, I ordered the $50 part myself and it's been working great until today. The issue now is...
  3. Pressure Switch Stuck Open, Inducer Doesn't Start, Blower Motor Does Start

    HVAC
    Hey Gang, First time poster here. Went to fire up the heat for the first time this season yesterday, and after 30 minutes I noticed it had been blowing the whole time, but there was no heat. This is a model number GUI075A012AIN. Taking a closer look, I saw that I had three blinking lights...
  4. HE360A + Ecobee3, skip Pressure Switch

    HVAC
    Hey everyone, just installed a Honeywell 360A humidifier last night but have not powered it on yet. I need to get a 3/4" drill bit to get the pressure switch installed. My question is do I really need it? My understanding is that the pressure switch is used to verify that the furnace is actually...
  5. Trane XR90 Pressure Switch Error - Help Diagnosing

    HVAC
    I have a Trane XR90 furnace that is periodically not igniting. I get a “pressure switch” error (three blinking lights). We have had the issue in the past, but after shutting down the furnace, waiting and turning it back on, it would work normally. This winter, the error has been much more...
  6. Pressure switch replacement

    General DIY Discussions
    Hey all - new to this forum. I have had a problem with my furnace (rheem chriterion ii). I narrowed the search to a (hopefully) defective pressure switch so I bought a replacement. My question is this: As you can see, on the current part, there are two wires with two different colors that come...
  7. Spotty Furnace Issues

    HVAC
    My furnace is 11 years old. I replaced the inducer(Fasco A229) a year ago. Its a York HVAC GY8 model. Over the last month, I have had an issue 4-5 times. When the system turns on, the burners do no light. The inducer spins, but no flame. The system will stay on and just blow air. The...
  8. Goodman GPG13 Replaced a lot still wont ignite gas

    HVAC
    I have a 5 ton 13 seer GPG13600901A #0507696258 Amana-Goodman. It was short cycling on and off -- I cleaned sensor and noticed that draft inducer made noise when spinning -- I decided to replace the flame sensor and the draft inducer and the pressure switch and tubing -- It ran fine on initial...
  9. Replacement part of Rheem Super Quiet 80 gas furnace pressure switch?

    HVAC
    Hello, Long story short I am attempting to replace the pressure switch on my Rheem Super Quiet 80 furnace. I am trying to determine if the replacement part that I found is correct (I originally saw a Repair Clinic video on Youtube replacing this item on what looks like my exact furnace). The...
  10. Technical Difficulties Replacing Pressure Switch, Help

    Plumbing
    The screws pinning the 4 wires down are stripped so I applied super glue to one screw and placed atop a nut. After waiting for approximately 24 hours I went up to remove the screw only to have the nut part with the screw almost as if no adhesive was applied at all. I tried again, this time...
  11. Pressure Switch Error

    HVAC
    I have a Trane XR90 propane furnace that is not working for me. I get 3 flashing lights, which specifies that I am getting a Pressure Switch failure. I have done some troubleshooting and the situation is not getting any clearer. If I check continuity on the two connectors on the pressure switch...
  12. newbie HVAC rookie needs help

    New Member Introductions
    Thanks for the opportunity to gain some know how from all who know.. I am 63 and a retired Merchant Seaman (Deck Department) and have always been a little handy at fixing things and Jerry rigging. ( making something work without buying a new part) Jack of all trades and master of one...
  13. Amana Air command 90 pressure switch

    HVAC
    My furnace has the red light blinking 3x, which indicates a stuck pressure switch. I read through some suggestions on how to fix this problem on forums like this and largely it seems blowing through the hose connecting the switch to the induction fan motor helped a lot of people. I tried this...
  14. Loading up with water

    HVAC
    Hi, my furnace is filling up with water and locking itself out. It is draining out to the floor drain but I have to take the ("collection reservoir" It has 3 hoses going in the top and one out the bottom) Off and manually empty it when it locks itself out. Lately I've just been taking the...
  15. Lennox SLP98 pressure switch issues

    HVAC
    Hi - We have a two-year old SLP98 furnace that will not light. I have had HVAC techs out three days in a row (at $160/visit) and still they really don't know what is wrong with our furnace. Each time they come out, they try a bunch of different things (mostly the same things the other guy...
  16. Bryant Plus 90 Problem

    HVAC
    I have a Bryant Plus 90 furnace propane that worked once since I turned it on a few days ago and hasn't since. The fan works and the thermostat works. I get code 31 whenever I attempt to start the furnace. The, for a lack of a better term, "little" blower motor comes on and the LED stays lit...
  17. Strange pressure switch problem

    HVAC
    I have a furnace with a "pressure switch stuck open" (3 red blinks) problem. Here's what I have: The draft assist blower is working and the draft vent is unobstructed the pressure switch has 2 hoses, 1 to draft fan and 1 to "heat exchange box" (probably not the right term). When first...
  18. Furnace pressure switch line/nipple question

    HVAC
    Furnace pressure switch line/nipple question I recently had my inducer/exhaust fan replaced and several times since have found the new inducer fan running but the unit wouldn't fire up. On investigating I find that there are three hoses to...
  19. Carrier Comfort 92 pressure switch

    HVAC
    What pressure is the pressure switch measuring, lloks like a pressure difference between the burner and somewhere in the inducer. And how does this relate to the condensation trap
  20. Carrier Comfort 92 LED code 31

    HVAC
    I am receiving error code 31 on my new Carrier Comfort 92. Background; I am doing demolition in the house. A condensation pump was installed with the line running upstairs because there is no drain in the basement. I cut the condensation line for the demo and put the tube in a large mason...
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