OEM Carrier HK42FZ013 Furnace Control Board for PG8MAA036070ADJA

The integrated control board is the brain of your Carrier PG8MAA036070ADJA. It runs the entire ignition sequence — energizing the inducer, proving the pressure switch, powering the hot surface igniter, opening the gas valve, monitoring flame, and timing the blower on and off — while flashing diagnostic fault codes through its onboard LED. When the board fails, the furnace can go completely dead (no inducer, no response to the thermostat), short-cycle, run the blower nonstop, or lock out with erratic flash codes that don't match any single sensor. Cracked solder joints around the relays and a fried flame-sense circuit are the classic failure points. This is an HK42FZ-series ignition control board with onboard relays for the inducer motor, gas valve, and blower (heat, cool, and continuous-fan taps), plus the flame-sense and igniter circuits. It is compatible across the HK42FZ family used in Carrier and Bryant 80% furnaces; jumper and pin layout match the original so your existing harness plugs straight in. Why OEM matters: aftermarket boards often substitute lower-rated relays and capacitors that pit, weld, or drift over time, and mismatched flame-sense gain causes nuisance lockouts on a perfectly good flame sensor. The genuine Carrier board carries the original relay ratings and ignition timing the furnace was certified with. Install difficulty: 2/5. Tools: 1/4" nut driver, needle-nose pliers, a multimeter, and your phone to photograph every wire before removal. #1 safety warning: kill the breaker and disconnect 120V power before touching the board — it carries line voltage even with the thermostat off. Ships same business day from our stocked warehouse on orders placed before 3 PM CST. Backed by a 1-year OEM warranty and 30-day hassle-free returns on uninstalled parts.

Compatibility

This part is compatible with Carrier model PG8MAA036070ADJA. Always verify the part number against your unit's data plate before ordering.

Why Choose OEM?

OEM parts are manufactured to the exact factory specifications for your unit. Generic aftermarket alternatives may fit physically but often use lower-rated components that reduce equipment life and void manufacturer warranties. When the cost difference between OEM and generic is $10-30, the OEM part is always the smarter investment on a system worth $5,000-$15,000.

Shipping & Returns

Same-day shipping on orders before 3 PM CST. Standard delivery 2-5 business days, express options available at checkout. 30-day hassle-free returns on uninstalled parts — free return shipping included. 1-year OEM factory warranty coverage.