When selecting a blower motor relay for a home AC system, choose parts that prioritize precise control, durability, and compatibility with common Honda and Goodman style relays. This guide highlights five reliable relays designed to handle blower motor, fan, and AC clutch duties, and explains who benefits most from each option. The top picks emphasize stability, fast switching, and solid construction to minimize downtime and improve HVAC reliability for residential use.
| Product | Brand | Type | Best For |
|---|---|---|---|
| HHZL AC Relay G8HL-H71 (2 Pack) | HHZL | Replacement AC relay | Honda vehicles and universal AC relay needs |
| ACDelco Gold D1724C | ACDelco | Multi-purpose relay | General aftermarket replacements |
| ACDelco Gold 15-50961 | ACDelco | Auxiliary blower relay | GM/Heater/AC blower control |
| HUAREW APFR-360 90-360 | HUAREW | 24V AC fan relay | HVAC blowers and furnaces |
| B1370738 Goodman OEM Replacement | OEM Replm for Goodman | Blower relay | Goodman systems |
HHZL AC Relay G8HL-H71 for Honda and More
The HHZL AC Relay G8HL-H71 is a compact replacement designed to substitute G8HL-H71 and similar models (e.g., 39794-SDA-A03, 39794-SDA-A05, 1R191). These relays are suitable for blower motor, fans, clutch, headlights, and AC systems in compatible Honda models. The device uses silver alloy contacts with all-copper coils to achieve fast millisecond-level switching, enabling stable control of loads in the 10–30A range. The housing is sturdy and water-resistant, contributing to durable performance in automotive environments. Best for: owners seeking a precise, space-saving replacement with quick response times for Honda and similar applications. Caution: verify the exact relay model before purchasing to avoid mismatches in pin configuration or coil voltage.
Why this selection works: The G8HL-H71 replacement aligns with common automotive relay standards and offers a lower temperature rise than standard relays, helping reduce heat-related wear in compact engine bays. It’s particularly well-suited for users who need a ready-to-install 2-pack option for spares or multiple relays in one system.
ACDelco Gold D1724C (89057568) Multi-Purpose Relay
The ACDelco Gold D1724C is a premium aftermarket replacement known for dependable performance and compatibility with a wide range of vehicles and systems. It is designed to meet precise fit, form, and function expectations and is presented as a professional-grade option for replacing blower motor and related relays. Best for: buyers seeking a trusted, widely compatible relay with a reputation for durability in automotive applications. Caution: confirm that the model number and electrical specifications match your particular blower circuit to ensure proper operation.
ACDelco Gold 15-50961 Auxiliary Blower Relay
This ACDelco 15-50961 relay is marketed as a professional-grade auxiliary blower relay, with a focus on dependable aftermarket performance and fit. It is designed to meet exacting standards for reliability in HVAC blower control circuits. Best for: those who want an established brand option for auxiliary blower function within GM and related systems. Caution: the listing notes “professional, premium aftermarket replacement,” but always verify that the relay’s coil voltage and contact ratings match your circuit requirements.
HUAREW APFR-360 90-360 24V AC Fan Relay
The HUAREW APFR-360 is a 24V AC fan relay with a universal bracket. It supports a 90-360 type configuration and is rated for 12 FLA and 60 LRA at 125 VAC, with 8 FLA at 250 VAC. This relay is compatible with a broad set of blower motor and furnace applications, and the provided bracket helps with mounting in tight spaces. Best for: users replacing older factory relays that match the 90-360 family or requiring a heavy-duty SPST configuration for HVAC blowers. Limitation: verify exact terminal mapping and coil voltage to ensure compatibility with your system’s wiring harness.
B1370738 Goodman OEM Replacement Blower Motor Relay
This Good-man OEM replacement relay (B1370738) is positioned as a top-quality OEM part for Goodman furnace blowers. It’s intended to maintain original performance and compatibility with Goodman systems. Best for: customers upgrading or restoring a Goodman unit with an OEM-style component to preserve factory behavior. Caution: OEM replacements should be verified against your model’s exact spec to ensure seamless integration with existing wiring and housing.
HUAREW APFR-290 90-290 24V AC Fan Relay
The HUAREW APFR-290 90-290 relay is another 24V AC fan relay with a universal bracket, designed for Goodman HVAC blowers and humidifier blowers. It shares many specifications with the 360-series but targets a slightly different 90-290 configuration. Best for: homeowners replacing a narrower-range 90-290 relay while maintaining robust 24V control. Caution: verify coil voltage and contact ratings match your blower circuit to avoid mismatches in current handling.
Buying Guide: Key Considerations for Blower Motor Relays
What should you check before buying?
Determine coil voltage, contact configuration, and current rating. Most home HVAC relays operate at 24V AC or automotive 12V/24V DC; choose a coil voltage that matches your control circuit. Confirm the contact rating (amperage) aligns with your blower or fan’s load to prevent overheating or failure.
How important is compatibility?
Compatibility matters for plug-and-play replacement. Some relays are designed for automotive use, others for HVAC equipment. Ensure the pinout and mounting style fit your unit’s harness and housing. Where possible, favor relays that advertise compatibility with your make or model family (Honda, Goodman, GM, etc.).
Durability and environmental considerations
Look for sturdy housings, moisture resistance, and robust mounting. In homes, relays may face temperature swings and dust exposure; models with sealed bodies and corrosion-resistant contacts tend to last longer in such conditions.
Price versus reliability
While price can indicate value, reliability comes from brand consistency and material quality (silver alloy contacts, copper coils, durable plastics). When possible, choose established brands with proven field performance for critical blower applications.
Installation tips
Follow the manufacturer’s wiring diagrams precisely. Disconnect power before replacement and verify proper coil voltage. If the relay is a direct OEM replacement, confirm it matches the original part’s pin configuration to avoid miswiring.
FAQ
- What is a blower motor relay? A relay in a blower circuit acts as a switch, powering the blower motor or fan when control signals activate the circuit. It handles higher current than typical control relays.
- Can I mix relays from different brands? Mixing is possible if electrical specs (coil voltage, contact rating, and terminal layout) match your circuit. Incompatible relays can fail to switch correctly or overheat.
- Is a higher amperage rating better? Not always. Choose a rating that safely covers the blower’s current draw with a margin. An undersized relay risks overheating or failure.
- Do OEM relays last longer? OEM relays are designed to match original equipment specifications, which can aid compatibility and longevity in the specific system.
- What if I’m replacing an automotive relay in a home HVAC unit? Automotive relays can work in some home HVAC applications if coil voltage, contact ratings, and wiring match. Verify compatibility with your system’s electrical design.
- Should I consult a professional for relay installation? For safety and to guarantee proper operation, especially in complex HVAC systems, professional installation is recommended.