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  1. 01-14-2013, 10:59 PM #1
    fengshvac
    fengshvac is offline Regular Guest
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    Professional Tech teach you how to fix your AC or Heat

    Problem: furnace is not working, no heat.

    Cause: somebody installed this thermostat and didn't take out the white plastic piece in the middle of the thermostat, so when you turn the heat on, it didn't close the contact and call for heat.

    Solution: take the white plastic piece out and call for heat, heat turns on.

    Name: 74295_105822869595119_1993796544_n.jpg Views: 315 Size: 41.4 KBName: 312464_105822982928441_1045028203_n.jpg Views: 323 Size: 32.7 KB
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  2. 01-15-2013, 09:44 AM #2
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    t527ed
    t527ed is offline Professional Member*
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    it was probably safer with the plastic in place.
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  3. 01-15-2013, 10:35 AM #3
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    motoguy128
    motoguy128 is offline Professional Member*
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    Solution.... send that poor tired old furnace to the HVAC graveyard before the HX fail, if it hasn't already, and install a digital thermostat.

    At mnimum, get that furnace inspected. IS there a cover for the burner compartment? or is it just removed for the photo?
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  4. 01-15-2013, 10:40 AM #4
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    toocoolforschool
    toocoolforschool is offline Professional Member
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    This is good stuff keep it coming. HVAC 101.
    It's not if your doing it right it's whether your doing the right thing that is important.
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  5. 01-16-2013, 10:53 AM #5
    Tommy knocker's Avatar
    Tommy knocker
    Tommy knocker is offline Professional Member*
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    Hey teach. Can you come over to the chiller forum. There are oil issues on the 30HX machines you may be able to save us from.
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  6. 01-16-2013, 10:56 AM #6
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    Tommy knocker
    Tommy knocker is offline Professional Member*
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    Oh ya and jump over to the refrigeration forum. We having trouble checking subcooling on some walk ins.
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  7. 01-16-2013, 11:04 AM #7
    small change
    small change is offline Professional Member*
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    By the look of that dirty diverter this furnace is long overdue for a cleaning/inspection.

    The thermostat looks like a landlords special and what the heck is that wiring coming in on the left side of the furnace.

    Glad you could get the heat back on, maybe you could go the extra mile and do some real work on that tired old carrier/bdp furnace.
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  8. 01-16-2013, 11:14 AM #8
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    billg
    billg is offline Professional Member*
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    This is the Ask Our Pro's forum, and only Pro members that have been vetted by the AOPC may post advise, commentary, or ask questions of the OP here. Please apply to the AOPC today, thank you.

    You can find the rules for posting and qualifications here.

    Further infractions may result in loss of posting privileges.
    Last edited by beenthere; 01-16-2013 at 07:17 PM. Reason: Non Pro * Member
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  9. 01-16-2013, 12:31 PM #9
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    Tommy knocker
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    Hey Feng I just rebuilt a HGBV on a 30 ton TS chiller. What should I set it at? It's an R22 machine. A little help.
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  10. 01-16-2013, 12:32 PM #10
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    Tommy knocker
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    Quote Originally Posted by Tommy knocker View Post
    Hey Feng I just rebuilt a HGBV on a 30 ton TS chiller. What should I set it at? It's an R22 machine. A little help.
    I was thinking clockwise.
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  11. 01-16-2013, 12:35 PM #11
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    Joehvac25
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    Do the mods make this stuff up for our amusement? Lol
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  12. 01-16-2013, 01:10 PM #12
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    heaterman
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    Nice.
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  13. 01-16-2013, 04:31 PM #13
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    pauls heating &
    pauls heating & is offline Professional Member*
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    can the mods pull out the spammer hammer on this fruitcake...
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