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York affinity 9.s series, year 2008. I have not used my furnace since last winter (approximately 7 months ago). I went to start it up this year for the first time and it will not start. Upon inspecting behind the bottom access panel the 3 amp at40 fuse on the circuit board was blown. I replaced the fuse and tried turning the power back on with the same results, instant blown fuse, as soon as I turned the circuit breaker back on. What will cause this to happen? Where do I start? Also my basement flooded this spring but the furnace is raised off the floor and was not submerged in water but there was all that moisture in the air for days if not weeks.

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  • 49 Answers

Fuses will blow if there is an overload.
Breakers only trip if there is a short to ground.
Since you replaced the fuse and it blew and tripped the breaker , I would check for a wire problem. Also check the elements that rodents haven't built nests ect...

Posted on Nov 12, 2014

  • chase muehlbauer Nov 12, 2014

    Right, these were the first things I thought of two. First I checked the intake and exhaust pipes for plugs, all clear. I checked to see if the condensation line was plugged, all clear. Looked over all the visible wiring, also all good (as in like no chewed wires or mouse nests or nothing crazy). So I figured the problem must be wiring. I presumed from the fuse backwards to the main breaker. I haven't started digging into it I was just wondering if there was a typical or good spot i could start checking.

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Posted on Jan 02, 2017

  • 124 Answers

SOURCE: York Air Handler trips main circuit breaker

almost has to be the electric heat strip coils. they usually come on in stages. when the damaged strip comes on it kicks breaker. turn off all power, check with a meter , gently remove strips and inspect for broken or shorted coils. usually best to buy a new heat strip module. they are usually held in place as a module with 4 screws and a snap together wire connector .good luck. i have had some success if the wires are broken and not to brittle by bending a minute loop in the end of each wire and reconnect with the tiniest screw and washer and nut you can find, i'm talking real tiny. about the size of a bb if you can find em , or you can remove the damaged strip wire entirely to get some heat from remaining.

Posted on Nov 23, 2008

solveditnow
  • 39 Answers

SOURCE: (HVAC) Furnace Not Igniting Quickly

Make sure a back draft in the flue is not happening. Wind can blow it out until the flue heats up. The flame sensor may not be close enough to the burner flame. It may be weak and need to be replaced or if its an optical one it may be dirty and not see the flame very well. Its not wasting much gas but it puts extra wear and tear on the gas controls, is noisy, and, as you said, blows cold drafty air. A gas control system that has issues of any kind is not real safe. It needs to get fixed.

Posted on Jan 08, 2009

pierre1811
  • 144 Answers

SOURCE: Code 32 when wind blows

Hi and welcome to Fixya. I believe that the wind is affecting the draft. What I would recommend is to install a cap on the flue that is similar to a weather vane in that it rotates to block the wind from creating a downdraft in the flue. Some times depending on the direction and strength of the wind it will come up over the roof peak and then down the flue. A regular fixed cap may work too. You should be able to purchase one at your local hardware store. Please let me know if this was helpful. Good luck.

Posted on Jan 25, 2009

t1m130
  • 86 Answers

SOURCE: York AC blown 3 amp fuse how do I replace?

the fuse is for low voltage 24v wires it is most likely located on the control board inside your furnace or air handler most of the time it will look like an automotive fuse there is probably a reason why its blowing usually a pinch or short in the wire if its a re accuring problem you might want to get a resetable 3amp fuse or popper i would be more concrned about calling the company and saying you charged me and never fixed the problem

Posted on Jun 28, 2009

shastalaker7
  • 1515 Answers

SOURCE: I have 60 amp circuit breaker on my electrical a/c

You're unit is a 31/2 ton according to the numbers.Normally, breakers will only be in a half way posistion when tripped. Yes, under most conditions, the fuse will blow before the breaker trips. I have seen this many times, the breaker may be weak, burned, loose wires and so tighten wires, check the condition of the breaker.It sounds like the breaker even though it is 60 amps, is the problem and you should replace it with out hesitating. This will solve you're problem. When you pull the breaker out, look at the metal clips that snap in on the buss bar to see if they have been overheating.And the buss bar its self. You will know. I am sure this will take care of you're problem. Good Luck,
Shastalaker7

Posted on Dec 07, 2009

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