On eBay Now...

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
This isHoneywell ST9120C 4057 Furnace Control Board HQ1011927HWused refurbishedpart.
This part was carefully inspected before listed, ithas been cleaned, contacts and plugs soldered of necessity.
This part is in very good cosmetic condition.Pleaselearn the images carefully for the model and part number verification.
Wehave more than one item for this listing, so we won't send you the itempictured, but one we have available now with the same part numbers.
FREEstandard shipping is guaranteed. We offer expedited shipping for additionalprice.If necessary, please include shipping costs in your purchase pricewhen placing your order.
My handling time is1 business day only.
Purchasing used parts you agree with the statement that sometimes hidden defects or malfunctions may occur during installation or continuous use. There is no warranty on used parts.But you have 30 days satisfaction guarantee and 30 days FREE returns.
Most of the parts require specific knowledge and skills to be installed properly. If you don’t have skills or knowledge, you must ask certified HVAC technician to install. I am not liable for any damages or failures as a result of improper installation.

Honeywell ST9120C 4057 Furnace Control Board HQ1011927HW used ref. #RP591**
$59.00
Honeywell ST9120C4057 Furnace Control Circuit Board HQ1011927HW
$65.00
Honeywell ST9120C2002 Furnace Control Circuit Board 031-01237-000 used #P901
$120.00
![]()
Popular Tutorials
Alarms and Indicator Circuit diagrams