Standard Ignition RY-241 HVAC Automatic Temperature Control (ATC) Relay

Overview of Standard Ignition HVAC ATC Relay RY-241

The Standard Ignition HVAC Automatic Temperature Control (ATC) Relay RY-241 is designed to provide reliable relay functions for various automotive HVAC systems. This 12-volt relay supports a 20 amp rating and is compatible with multiple vehicle makes and models, including Buick, Cadillac, Chevrolet, GMC, Nissan, Oldsmobile, and Pontiac.

• Amperage Rating: 20 amps
• Voltage: 12 volts
• Connector Gender: Female
• Connector Quantity: 1
• Connector Shape: Square
• Terminal Gender: Male
• Terminal Quantity: 5
• Terminal Type: Blade
• Continuous Duty: No
• Mounting Bracket(s): Not included

Technical Details and Compatibility

The RY-241 relay from Standard Ignition is engineered to meet the electrical demands of HVAC automatic temperature control systems in a range of vehicles. Its 20 amp amperage rating and 12-volt operation ensure it can handle typical HVAC relay loads without continuous duty capability. The relay features a single female square connector and five male blade terminals, facilitating straightforward integration into existing wiring harnesses. This relay is compatible with specific models such as the Buick LeSabre, Cadillac DeVille, Chevrolet Caprice, GMC P30, Nissan Pathfinder, Oldsmobile Cutlass Ciera, and Pontiac Firebird, among others.

Applications and Problem Resolution

This HVAC ATC relay is used primarily to control the automatic temperature regulation in vehicle climate control systems. It helps manage electrical current flow to HVAC components, ensuring proper operation of heating and cooling functions.

• Resolves intermittent HVAC blower motor operation
• Addresses failure of automatic temperature control systems to engage
• Prevents relay-related HVAC electrical shorts or open circuits
• Restores proper relay switching in Buick, Cadillac, Chevrolet, GMC, Nissan, Oldsmobile, and Pontiac HVAC systems
• Supports reliable HVAC system performance in vehicles with automatic temperature control

Installation Notes and Tips

When installing the Standard Ignition RY-241 relay, ensure the vehicle’s ignition is off and the battery is disconnected to prevent electrical shock or damage. Verify the relay’s connector and terminal configuration matches the original part. Since this relay does not include a mounting bracket, secure it properly within the HVAC relay housing or designated mounting area. Confirm all blade terminals are fully seated to maintain solid electrical connections.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The RY-241 relay undergoes rigorous testing to ensure reliable operation within specified amperage and voltage ratings. While continuous duty is not supported, the relay is designed for typical HVAC cycling demands. Warranty coverage details should be confirmed with the parts provider, but Standard Ignition generally offers limited warranties against defects in material and workmanship.