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Old 11-07-2014, 08:25 PM   #1
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Furnace ducting question

Hello all,

I'm using my furnace for the first time and I have no airflow out of the vents at the bottom of the over-sized chair behind the front passenger seat. I checked the ducting under it and it appears to be connected. Anyone else have this? All other vents are blowing warm air.

Also, tried setting the thermostat (both zones) to "auto" and then had the furnace come on and before it cycled off, the zone 2 A/C came on. Supposed to be a 4 degree range but it appears that isn't working as advertized. Not wanting the units to fight all night I went back to "FURN" on zone 2 and "HP" on zone 1.
Thanks
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Old 11-07-2014, 08:32 PM   #2
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Can you trace it back. sounds like a pinched hose.
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Old 11-07-2014, 08:59 PM   #3
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Just remember that the HP will freeze up if it gets around 40 degrees or so outside.
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Old 11-07-2014, 09:46 PM   #4
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Thanks! Did not know that. Hasn't come on once yet. The furnace is keeping it warm for now. Supposed to get to 41 tonight. I guess I'll turn off the HP.
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Old 11-07-2014, 09:48 PM   #5
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Going to try and trace the ducts behind the chair and maybe the cabinets if I get time. Thanks
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Old 11-07-2014, 10:04 PM   #6
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OK...........I'm a dumbazz. Please disregard this thread because I have, once again, proved my wife correct in her assessment of my level of knowledge.

There are two furnaces. Each with their own duct work. Never knew I had two of them. I am going to blame it on living in the south and really only caring about air conditioning. Thanks for those that responded and those that laughed without posting.

Have a nice night
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Old 11-07-2014, 10:14 PM   #7
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Quote:
Originally Posted by JJvike View Post
Thanks for those that responded and those that laughed without posting.

Have a nice night
That was me, by the way!

I know a lot of people say the HP freezes up and does not work below 40. We've run ours for 2 years well below 40 w/o any problems. The unit will stop and compressor will cycle back to AC mode to keep the outside evaporator from freezing over. This is likely different depending where you are. The good thing about the fall / winter air in the midwest, it doesn't have a lot of moisture in it to condense out.
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Old 11-09-2014, 08:44 AM   #8
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That was me, by the way!



I know a lot of people say the HP freezes up and does not work below 40. We've run ours for 2 years well below 40 w/o any problems. The unit will stop and compressor will cycle back to AC mode to keep the outside evaporator from freezing over. This is likely different depending where you are. The good thing about the fall / winter air in the midwest, it doesn't have a lot of moisture in it to condense out.

X2!! I use my HP's all the time in temps that are freezing and sometimes below freezing and have never had an issue with freezing the HP's over.

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Old 11-09-2014, 09:54 AM   #9
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Just remember that the HP will freeze up if it gets around 40 degrees or so outside.
That is only part true, As the temp drops the HP eff. drops also the norm is 35 degrees. The heat pump will forum ice on the condenser coils that's when it go's into defrost mode. Which is just the reversing valve reversing to A/C and shutting down the condenser fan motor so it will build heat and defrost. It never freezes up. The coil can be checked by the unit either with a sensor attached or a timer that puts it in defrost every 45 mins if needed.
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Old 11-10-2014, 10:56 AM   #10
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As an aside, there have been other threads in the Berkshire forum about heating systems acting wonky when the clock on the thermostat is not set.
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