Find your parts diagram
Sticker on the pump body (the part with the basket), not on the motor. Motor labels from Century, A.O. Smith or Regal won't match parts.
Label on the side of the tank near the base. Size is in sq ft, e.g. 420 sq ft = C4030 or CCP420.
Rating plate inside the front access panel. Note the BTU and gas type (NG or LP).
Molded into the body or printed on top. Robotic cleaners: on the power supply.
Still not sure? Call (818) 818-6559 and we'll find it for you.
The Raypak 018853F Temperature Sensor Limit Kit is a vital OEM safety component for Avia 264A and 404A gas-fired heaters. This kit monitors temperature differentials to detect overheat or unsafe operating conditions, triggering shutdown or fault signals to protect the heater. Designed with precision sensors and temperature-limit hardware, it helps maintain heater reliability, safety compliance, and proper performance under varying load and water flow conditions. Using this kit ensures your heater operates within intended thermal thresholds and guards against damage from high temperatures.
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Precise Temperature Monitoring: Includes high-quality sensors that accurately track temperature limits to help prevent overheating and ensure safe heater operation.
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OEM Safety Compliance for Avia 264A & 404A: Designed specifically for Avia Series 264A and 404A models to meet factory safety and performance standards.
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Protects Heater & Components from Damage: By detecting unsafe temperature conditions, it helps avoid damage to internal heat exchangers, wiring, and controls.
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Critical for Fault Detection & System Shutdown: Enables automatic shutdown or alerts when temperature thresholds are exceeded—key for maintaining warranty and operational safety.
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Engineered for Reliable Long-Term Use: Built with components made to endure repeated thermal cycling, moisture, and environmental stress typical of pool-heater environments.
- Raypak Avia 264A Heater Model 018032
- Raypak Avia 404A Heater Model 018033
- Raypak Avia HD NiTek 264A Heater Model 018044
- Raypak Avia HD NiTek 404A Heater Model 018045
