HVAC & Refrigeration: Controls & Circuit Boards
hvac & refrigeration: controls & circuit boards — pre-owned
Browse 40,936 hvac & refrigeration: controls & circuit boards — pre-owned on eBay — listings updated every few minutes. All items are pre-owned and sold by eBay sellers directly.

Carrier Bryant LH33WP003A Furnace Control Board 1068-11 used #P15
There is no warranty on used parts. All parts have been inspected by professional HVAC installer.

YORK 1162-251 Control Circuit Board 542760 Source 1 251 1162-83-2511A B1
This part was removed by a certified hvac installer from a fully functioning system. The part has been inspected and was in working condition when removed. Parts that are purchased should be installed by a certified hvac technician. I am not liable for any damages or failures as a result of improper installation. Thank you!

Triangle Tube Prestige TriMax, Honeywell CS0254C, PTRKIT205 Control Module
This part was removed and inspected by HVAC installer from a fully functioning system. Old system was replaced with newer one (more energy efficient) and was in good working condition. This part was in good working condition when removed. Please check images carefully because you will receive exactly the part as pictured, or a very similar one. 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.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.

Carrier advanced micro Controller - P/N: 12-00438-XX
Photos in listing are examples of board that will ship, slight differences between boards but all are interchangeable. Used micro board Tested working HOURS SET TO 0! You can program new hours once installed. Software U5.21 installed If you have a Vector unit, I can install V5.21 software After purchasing, you can message me with your model number, engine/ switch hours, company name, etc. And I can program the Micro for you, so it can be installed and used without additional programming. This service adds additional shipping time. If you are a driver/ owner this will help you. IF YOU HAVE A SATELLITE SYSTEM INSTALLED PLEASE LET ME KNOW, MOST TIMES I CAN SUPPLY THE CORRECT BOARD FOR YOUR APPLICATION

Honeywell ST9120C 4057 Furnace Control Board HQ1011927HW used refurbished #RP591
There is no warranty on used parts.
You save $4.10

Honeywell ST9120C2002 Furnace Control Circuit Board 031-01237-000 used #P901
This part is in good used condition. But p lease note, that slight discoloration is typical of this board, even in its used functional condition. Including varnish discoloration. This part was removed by HVAC technician from a fully functioning system.
You save $6.00

50V51-289-01 GUARANTEED WORKING TESTED GOOD Control Board B1809927
Contact us for free tech support as we can help resolve any issue.

Raypak 601769 1134-403 Pool/Spa Heater Control Display Board refurbished #P120A
There is no warranty on used parts.
You save $22.00

ROBINAIR RA20070 POWER CONTROL RELAY BOARD 34788 34988 REBUILD SERVICE
I have both a 34788 and 34988 machine on-site to do full output tests of all board functions on, before I send it back. I have a 100% success rate after about 20 repairs now. Each board is verified and tested to 100% factory spec before being sent back to you.

LENNOX BCC3-2 REV B LB-90676 65K29 Furnace Control Board Working P#111
LENNOX BCC3-2 REV B LB-90676 65K29 Furnace Control Board Working P#111. Condition is Used. Shipped with USPS Ground Advantage.
You save $7.48

HONEYWELL ST9120C4016 Furnace Control Circuit Board HQ1009836HW used # P244
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.

Fenwal 35-662944-013 Automatic Ignition Control System used #P727*
This part was removed by HVAC technician from a fully functioning system. Old system was replaced with new one and was in good working condition. There is no warranty on used parts. This part is in very good used condition.
You save $4.39

S8600M Continuous re-try 100% shutoff 90 sec trial ignition module MISSING TABS
MISSING MOUNTING TABS ON TOP.

Lochinvar RLY2724 , 100167744 DISPLAY BOARD, M9, M9
Lochinvar RLY2724 DISPLAY BOARD, M9, M9 Used in the following models: PB 501, PF 501, PB 751, PF 751, PB 1001, PF 1001, PB 1300, PF 1300, PB 1500, PF 1500, PB 1700, PF 1700, PB 2000, PF 2000 This item was pulled from a working boiler and is in good condition, currently out of stock on many websites and cheaper than buying new, save money by buying used!

TESTED🔥 Water Furnace Geothermal Unit Control Board 17P513-07 Rev E 1076-112
Same-Day Package Drop-Off & 60-Day Hassle-Free Returns! Every item undergoes a thorough 3-Point Inspection*to ensure quality: - Visual Inspection - Control Inspection - Electronic Inspection We offer high-quality used items in excellent working condition, all removed by licensed technicians. Each product is meticulously inspected before being processed for sale. Fast Shipping: All items are shipped within one business day, with options for expedited shipping available upon request. If you have any questions or need more details, feel free to email me—I’ll respond within the hour. **Buy with Confidence:** I'm here to assist you with any inquiries before you make a purchase

ST9160B 1084 1014460 Furnace Control Circuit Board TESTED/WORKING
Tested and working. Pulled from a functioning system. Item was bench tested with a 24V AC transformer and confirmed to power on and respond to thermostat calls. Heat, cooling, and fan outputs were verified with a multimeter. Please verify part numbers and compatibility before purchase. Installation should be performed by a qualified HVAC technician. Seller is not responsible for improper installation or misdiagnosis.

Honeywell S8600M1005 Furnace Ignition Control Module S8600M HQ1011449HW
Honeywell S8600M1005 Furnace Ignition Control Module S8600M HQ1011449HW. Great condition. Comes from working furnace.

50A65-475-05 Furnace D341396P01 Control 50A65-475 Board D341396P04 Working P#110
50A65-475-05 Furnace D341396P01 Control 50A65-475 Board D341396P04 Working P#110. Condition is Used. Shipped with USPS Ground Advantage.

Bard MC4000 Dual Unit Lead/Lag Controller Metal MPN 7961-312-0229
Bard MC4000 Dual Unit Lead/Lag Controller Metal MPN 7961-312-0229

Used - ICM ICM450A Line Voltage Monitor, 3 Phase, 50/60 190-630 VAC
Used - ICM. Item is in good condition. Location: Shelf B27-Bin 286.

UT 1016 SERIES Direct Spark Ignition Lennox 49W66 1016-500 102186-01 🔥 Checked
Lennox / Armstrong 49W66. 1016 SERIES. After removal from the unit, we inspected the circuit board and components to confirm no issues. I’ve included close-up photos of the circuit board top and bottom and the components.

Carrier Bryant HK42FZ009 Furnace Control Circuit Board 1012-940-J used #P435
There is no warranty on used parts. All parts have been inspected by professional HVAC installer. 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.

Carrier Bryant CEPL130438-01 Control Circuit Board HK42FZ013 used #P368
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.
You save $2.00

B18099-13 Furnace 1012-933 control Circuit board 1012-933d
You save $41.00

Honeywell RM7895 C 1012 Unit
You save $275.00

Honeywell S8600H Pool/Spa Furnace Ignition Control Module S8600H1055 used #D142
This part was removed by HVAC installer from a fully functioning system. Part has been inspected by professional and was in working condition when removed.

HK42FZ013 GUARANTEED WORKING - CEPL130438 OEM Furnace control board Carrier
Contact us for free tech support as we can help resolve any issue.

HK42FZ065 Carrier Furnace Control Board CEPL131102-01-R CEBD431102-04-RA
Contact us for free tech support as we can help resolve any issue.

Mitsubishi BH00J333 Control Board
This part was removed by a certified hvac installer from a fully functioning system. The part has been inspected and was in working condition when removed. There is no warranty on used parts. Parts that are purchased should be installed by a certified hvac technician. I am not liable for any damages or failures as a result of improper installation. Thank you!

KFR-140W/BP3 17122000047742 Mini Split Inverter Control Board
This part was removed by a certified hvac installer from a fully functioning system. The part has been inspected and was in working condition when removed. Parts that are purchased should be installed by a certified hvac technician. I am not liable for any damages or failures as a result of improper installation. Thank you!

Lennox 103445-04 10F81 Thermostat
used I comfort thermostat. white trim is faded. customer wanted a more simple thermostat and downgraded. thermostat was in operating condition.

🔥🔥 Lennox SureLight Circuit Control Board 56L8301 24L8501 50A62-121-06 (B5)
The Lennox SureLight Circuit Control Board 56L8301 24L8501 50A62-121-06 (B5) is a high-quality furnace control board designed for HVAC systems. This product, made by LENNOX, features a 50 A amperage capacity and is compatible with models 56L8301, 24L8501, and 97L4801. It is an essential part for maintaining and repairing heating systems in commercial and industrial settings, ensuring efficient and reliable operation. The Lennox SureLight Circuit Control Board is a trusted component for controlling and regulating furnace functions. Used took out of working unit changed to something different.

HK42FZ017 Missing one Mount Loop GENUINE OEM Furnace Control Board CEPL130455-01

LENNOX 46994-001 Furnace Control Circuit Board 1097-502 used #D130
There is no warranty on used parts. This part was removed and inspected by professional HVAC installer from a fully functioning system. Was in great working condition when removed.

S86F1042 Intermittent Pilot S86F Non 100% Shutoff Nat. Gas

For HK32EA003 HK32EA008 Defrost Control Board CEBD430433-10A

🔥 York 1171-400 Furnace Ignition Control Circuit Board 1171-83-400A SOURCE 1
Every item undergoes a thorough 3-Point Inspection to ensure quality.

HK42FZ013 AS PICTURED Furnace Control Board CEPL130438

LENNOX HEATCRAFT NOVAR EGC-1 73K7901 Control Circuit Board EGC HB-00907DA
Same-Day Package Drop-Off & 60-Day Hassle-Free Returns! Every item undergoes a thorough 3-Point Inspection*to ensure quality: - Visual Inspection - Control Inspection - Electronic Inspection We offer high-quality used items in excellent working condition, all removed by licensed technicians. Each product is meticulously inspected before being processed for sale. Fast Shipping: All items are shipped within one business day, with options for expedited shipping available upon request. If you have any questions or need more details, feel free to email me—I’ll respond within the hour. **Buy with Confidence:** I'm here to assist you with any inquiries before you make a purchase

America Standard 6400-0392-01/6400039201 (TRANE DISPLAY INCLUDED)
The product is an American Standard 6400-0392-01 control board for HVAC and refrigeration systems, designed with a corded electric power source and a 1 phase power phase. It includes a Trane display, making it a specific piece of equipment that can be used in a business or industrial setting. This control board is a reliable and efficient component for maintaining and operating heating, ventilation, and air conditioning systems.also Includes a TRANE display