REEPLAR AC03P9 Replacement Control Board for Pit Boss 1100PS1 PB820 Pro 1100 — LCD Thermostat, Smoke Mode

REEPLAR AC03P9 is a direct replacement control board and LCD controller compatible with Pit Boss pellet grills (including 1100PS1, PB820 and Pro 1100 models) that restores temperature control and smoke settings.

If your Pit Boss pellet grill’s display is blank, the thermostat behaves erratically, or the grill no longer holds set temperatures, this REEPLAR AC03P9 control board offers a plug-and-play substitute. Designed to match the original PCB’s functions, the module delivers the same eight cooking settings from 200°F up to 475°F plus a dedicated smoke mode. It reuses the factory mounting and wiring layout so you can replace the control panel quickly without modifying the grill.

How will this control board restore my grill’s temperature control?

The AC03P9 includes the LCD thermostat interface and the control electronics that manage auger feed, fan speed and ignition sequencing. Replacing a faulty board reinstates the controller’s ability to maintain set temperatures and run programmed smoke cycles.

• Replaces original AC03P9/PB1100PS1 board functionality
• Restores temperature regulation from 200°F to 475°F
• Returns smoke mode and digital display operation
• Compatible with listed Pit Boss pellet models

Is installation difficult for someone with basic DIY skills?

Installation is straightforward for anyone comfortable with simple electrical swaps. The controller uses four color-coded wires that connect to matching wires inside the grill; no advanced troubleshooting or soldering is normally required.

• Follow manufacturer wiring colors for a direct connection
• No cutting or drilling—fits existing mounting points
• Typical install time: 15–30 minutes for a careful DIYer
• Disconnect power and fuel source before starting

Which Pit Boss models will this panel work with and what limitations should I know?

This replacement board is compatible with many Pit Boss pellet grill models including 1100PS1, PB820, Pro 1100 and several others listed by model. It does not include Wi‑Fi features and is not compatible with vertical smokers or units requiring a different control firmware.

• Compatible: 1100PS1, PB820, Pro 1100, PB440D2, PB1150G, PB850G, PB550G, and similar models
• Not compatible with vertical smoker models
• No built-in Wi‑Fi or meat probe included
• Verify model and connector style before purchase

What cooking features and temperature ranges does the replacement board support?

The control board provides eight selectable cook settings and a dedicated smoke mode so you can choose low-temperature smoke or higher direct-heat grilling. Temperature adjustment is handled through the LCD interface for precise setpoint control.

• Eight cooking temperature presets from 200°F to 475°F
• Separate smoke mode for low-and-slow cooking
• Digital LCD display for clear setpoint and status readout
• Does not include a meat temperature probe—sold separately if needed

Who is this replacement control board for? This REEPLAR AC03P9 is aimed at Pit Boss owners who need to replace a faulty or damaged controller quickly and affordably. It’s suitable for homeowners comfortable with basic electrical work, repair shops servicing Pit Boss grills, and anyone who prefers restoring original performance rather than buying a new smoker. Always confirm model compatibility and disconnect power before installing. If you rely on Wi‑Fi monitoring or require an integrated meat probe, check for alternate OEM parts or compatible upgrades.