How does my vehicle’s AC system work?

The AC compressor pressurizes refrigerant gas, which moves to the condenser. The gas releases heat, condensing into a high-pressure liquid. After cooling, the liquid passes over evaporator coils to cool the air as it is blown through the vents.

What are the signs the system needs service?

Common indicators of an air conditioning system in need of service include warm and/or weak airflow through the vents, frequent on/off cycling of the system and a strange or musty odor.

Is the puddle of water under my car a sign of AC problems?

Not necessarily. Condensation typically builds up on the AC evaporator and the water is drained at the bottom of the vehicle. That’s normal, but a larger puddle combined with reduced AC performance could indicate a problem.

Does low refrigerant mean there’s a leak in the system?

In most cases the answer is yes. AC systems in older cars will experience refrigerant leakage over time, but a later-model vehicle that needs continual refrigerant recharging typically indicates a leak.

Can a new cabin air filter improve AC performance?

Yes. A very dirty or clogged cabin air filter can reduce the airflow of the AC system, reducing its cooling efficiency and making the system work harder than normal. Periodic cabin filter replacements help the AC system keep its cool.

Gm Genuine Parts 15 81931 84178783 Heating And Air Conditioning

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HK$1152

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Description

🔥 Elevate your drive with precision climate control — GM Genuine Parts power your comfort!

SEAMLESS GM OE FIT - Engineered to exact GM specifications for flawless integration and performance.
DURABILITY YOU CAN TRUST - Built to last with genuine GM quality, ensuring long-term reliability under all conditions.
RELIABLE CLIMATE CONTROL - Microprocessor-driven modulation ensures smooth, precise blower speed adjustments.
PLUG AND PLAY INSTALLATION - No programming required—get your HVAC system up and running hassle-free.
UPGRADE YOUR RIDES COMFORT - Restore factory-level HVAC performance and enjoy consistent cabin climate control.

The GM Genuine Parts 15-81931 Blower Control Module is a direct OE replacement designed to perfectly fit GM vehicles. Featuring microprocessor technology, it modulates HVAC blower speeds for optimal climate control without requiring programming. Manufactured to GM’s exacting standards, it guarantees reliable, durable performance and easy installation, restoring your vehicle’s original comfort experience.

Specifications

ASIN	B0792NR4DF
Best Sellers Rank	#252,457 in Automotive ( See Top 100 in Automotive ) #421 in Automotive Blower Motors
Brand	GM GENUINE PARTS
Customer Reviews	4.6 4.6 out of 5 stars (152)
Date First Available	January 16, 2018
Item Weight	5.6 ounces
Item model number	15-81931
Manufacturer	ACDelco
Manufacturer Part Number	84178783
OEM Part Number	84178783
Product Dimensions	7 x 7 x 7 inches

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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HK$1152

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hong Kong.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

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GM Genuine Parts 15-81931 (84178783) Heating and Air Conditioning Blower Control Module

Description

Specifications

Common Questions