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3

The capacitor needs replacement. While it is possible there is a circuitry problem causing the capacitor to overheat (and thus fail like this), it is also possible it was simply time for this electrolytic capacitor to fail while nothing else is wrong. See this photo for a similar failure mode.


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Fix If the pipes have been deformed (by placing something heavy on them, for example) then you can try bending them back to a round shape. If they're deformed to the point they actually have folds or creases in them, I'd give up and throw them out. New ducts Round ducts are sold as sheets with a special fold along the two sides that interlock into each ...


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You have a bad high limit switch, or the furnace is overheated. The high limit switch is in place to make sure the furnace doesn't heat up to the point that it damages itself, or anything around it. If the furnace gets too hot, the limit switch opens. When the switch opens the burners turn off, but the blower continues to run in an attempt to clear the heat. ...


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From the Owner's manual. Hardwiring Requirements (24V and 230V Operation) For 24V models: Connect black and white wires to a dedicated 40Va transformer. (Not Provided.) Notice that it says "to a dedicated 40Va transformer". This means that you'll have to install a 40VA transformer to power the device, not use the transformer in the HVAC unit. ...


1

I would recommend first contacting a home energy efficiency company first rather than an HVAC company. HVAC guys are usually clueless about systemic problems like these and will usually try to sell you a larger unit without diagnosing the true cause of the issue (which is a pain in the neck and can probably be fixed for much less than the cost of new ...


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Does the ratio of static pressures between two stories differ at different blower speeds? That's a very interesting question, but I believe it's a moot point. Any dramatic difference would mean your system isn't balanced correctly in the first place. (needs zoning, split systems, or an actual balancing) Stack effect will cause plenty of heat to go upstairs, ...


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This is not normal. When the thermostat energizes the G terminal, only the blower fan should come on. Check for a jumper/short between Y and G either at the thermostat, or the air handler.


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Technically I suppose you could remove the insulation around flex. Why would you want to though? I understand that it fits tight through there but in my installation of commercial duct work (on the side) we have just compressed the insulation. It is after all flexible. One thing that insulation around duct work does is prevent condensation on your ducts when ...



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