Raypak Pool/Spa Heater PC Board Controller Kit 3 Wire - 100-10000345
The Raypak 100-10000345 PC Board Controller Kit is a direct replacement part for Raypak pool and spa heaters using a 3-wire control system. This circuit board acts as the heater's main communication hub, interpreting inputs from the thermostat, safety sensors, and ignition to regulate burner function. It's a common fix for unresponsive or intermittently functioning heaters, and is an essential service part for maintaining your Raypak system.
Features
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Genuine Raypak Replacement: OEM control board designed for Raypak gas pool and spa heaters.
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3-Wire Compatibility: Specifically engineered for models using a 3-wire ignition control system.
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Restores Heater Functionality: Replaces non-functioning or damaged PC boards to restore control and heating operation.
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Easy Installation: Includes mounting hardware and wiring harness for straightforward replacement.
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Reliable Performance: Factory-tested board ensures optimal communication between sensors, thermostats, and ignition modules.
- For use with Raypak pool and spa heaters with 3-wire ignition controls
- Compatible with various Raypak Digital and Millivolt Series models
- OEM Part Number: 100-10000345
Specifications
| Manufacturer |
Raypak |
| Part Number |
100-10000345 |
| System Type |
3-wire ignition heater controller |
| Includes |
PC board, wiring harness, mounting instructions |
| Installation |
Professional installation recommended |
| Compatibility |
For Raypak heaters requiring 3-wire ignition control (verify model-specific compatibility) |
| Function |
Controls ignition sequence, monitors flame, and integrates with heater diagnostics |
Included
- 1x Raypak 3-Wire PC Board
- Mounting accessories
- Wiring harness
- Installation guide
What our Experts Think
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Genuine OEM replacement control board kit designed specifically for Raypak pool and spa heaters with a 3-wire ignition control system — restores proper heater control and ignition sequencing.
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Direct fit for models like 206A, 266A, 336A, 406A, and 408A, replacing the older 013464F board without compatibility issues.
- Acts as the central operating controller, managing power, flame sensing, safety logic, and diagnostics to keep your heater functioning reliably.
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User-friendly LCD diagnostics simplify troubleshooting and service calls by displaying clear status messages (where supported).
- Includes necessary wiring harness and mounting hardware for a straightforward replacement (professional install recommended).
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OEM quality ensures long-term reliability and maintains manufacturer-specified performance standards.
Q&A
Q: What is the Raypak 100-10000345 PC board used for?
A: It is a replacement controller kit (printed circuit board) that manages key heater functions such as ignition, temperature control, and system diagnostics in compatible Raypak pool and spa heaters.
Q: Which systems is this controller kit compatible with?
A: It is designed for select Raypak gas pool and spa heater models that use a 3-wire control configuration. Compatibility should always be confirmed by model and serial number.
Q: Is this an OEM Raypak replacement part?
A: Yes, it is a genuine OEM Raypak part, ensuring proper fit, reliable operation, and factory-level performance.
Q: What does the PC board controller do?
A: It acts as the central control system, managing ignition sequencing, thermostat communication, safety lockouts, and diagnostic error codes.
Q: What are the benefits of replacing a faulty control board?
A: Replacing a damaged board restores proper heater operation, accurate temperature control, and safe system performance.
Q: Does this kit include installation components?
A: Yes, it typically includes the controller board and required wiring/connection components for installation (varies by kit packaging).
Q: How do I know if my heater needs a new PC board?
A: Common signs include no ignition, blank display, error codes, or unresponsive temperature controls.
Q: Is professional installation recommended?
A: Yes — professional installation is strongly recommended to ensure correct wiring, safe operation, and warranty protection.
Maintenance Tips
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Protect from moisture & condensation: Keep the heater cabinet sealed—water exposure is a top cause of control board failure.
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Ensure stable electrical supply: Use proper grounding and correct voltage to prevent surges that can damage the PCB.
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Check 3-wire connections regularly: Inspect for loose terminals, corrosion, or heat discoloration that can cause intermittent operation.
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Keep control area clean: Remove dust, insects, and debris that can cause short circuits or signal interference.
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Inspect fuses & transformer health: Many “no power” or “blank display” issues are caused by upstream components, not the board itself.
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Avoid static discharge during handling: Use ESD precautions when servicing or replacing the controller kit.
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Monitor error codes promptly: Early diagnosis prevents secondary damage to ignition, gas valve, or safety circuits.
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Annual professional inspection: Have a certified technician verify wiring integrity, sensor inputs, and control board calibration.
Damage 
Loss 
Theft 
