Is $550 to replace a bad wire to the defrost control board a fair price?
Project Details
During the summer, an HVAC technician diagnosed my system with a bad wire to the defrost control board. I was quoted $550 to replace it, but I didn't have the money then and still don't. The technician disconnected the wire so the unit would cool, and I honestly forgot about it until now. The unit outside is currently making a rhythmic noise while running, which reminded me. I'm hoping that something isn't breaking, especially with the crazy Texas weather (80s yesterday, 30s today, currently 40 degrees). The technician said the bad wire runs from the board to the thermostat. The unit seems to be working fine; the tech bypassed it in July for AC, and the heat also seems to be working. I haven't checked for frost build-up. I'm considering trying to run my own wire to replace it, but I'm also wondering if it might be the board instead of the wire. I never received an actual written quote, just a verbal estimate.
Quote Details
This quote is for replacing a bad wire identified by an HVAC technician. - The wire runs from the defrost control board to the thermostat. - The existing wire was disconnected by the technician during the summer to allow the HVAC unit to cool.
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More Details
Category
HVAC
Price
$550
Quote Date
February 1, 2026
Location
Texas
System type
Heat pump
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