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Carrier 8733821639 Control Unit Protection Module

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2  Reviews Add Your Review
Special Price $258.83 Regular Price $334.05
In stock
SKU
8733821639
The Carrier 8733821639 Control Unit Protection Module is a carrier HVAC protection device that is meant to protect Carrier HVAC systems from electrical issues. It does this by excluding the electrical functions in HVAC units and safeguard against spikes, high voltage and other electrical events that are detrimental to sensitive components. This protection module is mainly applied in Carrier HVAC systems and provides additional protection to ensure that the system functions effectively. It avoids electrical failures hence lengthens the service duration of the equipment, decreases the probability of expensive repair and enhances reliability of the system.
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Specifications

  • Length: 6.6 "
  • Width: 4.3 "
  • Height: 1.5 "
  • Prop 65: Yes
  • Weight: 0.29 lbs
Manufacturer Name: Carrier
Product Number: 8733821639
OEM Part Number: 8733821639
Product Description: Control Unit Protection Mod
Weight:0.29lbs/131.54g

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Product Questions (2)
Customer Questions
What maintenance is required for the Carrier 8733821639 Control Unit Protection Module?

For accurate operation, periodically inspect wiring connections and ensure the module is free from dust and moisture. This prevents signal interruptions and overheating. Always isolate power before servicing and use proper anti-static precautions when handling internal components.

What are common issues with the Carrier 8733821639 Control Unit Protection Module?

  • Power fluctuations causing resets.
  • Communication failure with control system.
  • Overheating of protection circuitry.
  • Intermittent output signals.
  • Relay or switching malfunction.
  • Sensor misreads.
  • Loose terminal connections.

Installation Steps

Step 1: Turn off all electrical power to the HVAC system and check zero voltage at control board.

Step 2: Open control panel and locate existing old protection module on the control unit board.

Step 3: Carefully disconnect wiring harnesses, noting connector orientation.

Step 4: Install new protection module firmly into designated socket or mounting bracket.

Step 5: Reconnect all wiring securely and ensure proper seating.

Step 6: Restore power and run the system to confirm safe operation and fault protection response.