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Home > Archive > Home Repair forum > August 2005 > Carrier Weathermaker 8000 furnace
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Carrier Weathermaker 8000 furnace
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| Tony Hwang 2005-08-27, 8:23 pm |
| Hi,
~10 year old furnace started intermittent lock up with error code 31.
Careful investigation revealed intermittent inducer motor. It starts
but stops running or it won't start when heat is called for.
Took the control board out(HK42FZ004) and went through it. The problem
found was cracked solder joint on two high Wattage resistors R34 and R33
(both 330 Ohms) had cracked solder joints on the PCB due to heat(?).
Reinforced the joints with silver solder. Now furnace is behaving normal
again. Google search showed it is known problem mentioned in service
bulletin. Going price for replacement board is ~200.00.
Hope this may be of some help for someone who has same furnace type.
(Carrier, Bryant, Payne brand uses same board I believe).
Tony
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| Tony Hwang 2005-08-27, 8:23 pm |
| Tony Hwang wrote:
> Hi,
> ~10 year old furnace started intermittent lock up with error code 31.
> Careful investigation revealed intermittent inducer motor. It starts
> but stops running or it won't start when heat is called for.
> Took the control board out(HK42FZ004) and went through it. The problem
> found was cracked solder joint on two high Wattage resistors R34 and R33
> (both 330 Ohms) had cracked solder joints on the PCB due to heat(?).
> Reinforced the joints with silver solder. Now furnace is behaving normal
> again. Google search showed it is known problem mentioned in service
> bulletin. Going price for replacement board is ~200.00.
> Hope this may be of some help for someone who has same furnace type.
> (Carrier, Bryant, Payne brand uses same board I believe).
> Tony
BTW, the original board is obsolete. Replacement board conversion kit if
needed with wiring harness has p/n: 325878-751
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| Carolina Breeze HVAC 2005-08-30, 8:21 am |
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"Tony Hwang" <dragon40@shaw.ca> wrote in message
news:Gq1Qe.320054$s54.70742@pd7tw2no...
> Tony Hwang wrote:
>
> BTW, the original board is obsolete. Replacement board conversion kit if
> needed with wiring harness has p/n: 325878-751
And can be bought by any legitimate tech for under $50.....
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