Dometic DuoTherm AC Overload Protector Kit - Fits MRA4720 Air Conditioner - Part# 3312138.000
Dometic DuoTherm AC Overload Protector Kit - Fits MRA4720 Air Conditioner - Part# 3312138.000
The Dometic DuoTherm AC Overload Protector Kit (Part# 3312138.000) is a critical safety component designed to protect your RV air conditioner's compressor from electrical overload and damage. This genuine OEM replacement kit is specifically engineered for the Dometic MRA4720 marine and RV air conditioning unit, providing reliable thermal protection that prevents costly compressor failures. If your AC unit is tripping breakers, failing to start, or the compressor is running hot, this overload protector kit is likely the solution you need.
Key Features
- Genuine Dometic OEM Part: Factory-engineered overload protector ensures perfect fit and reliable performance
- Compressor Protection: Automatically shuts off power when excessive current or heat is detected, preventing permanent compressor damage
- Complete Replacement Kit: Includes all necessary components for a proper installation
- Direct Fit for MRA4720: Designed specifically for Dometic DuoTherm MRA4720 marine air conditioner units
- Easy Identification: Replaces failed or tripping overload protectors that prevent AC startup
- Critical Safety Component: Protects your investment by preventing electrical damage to expensive compressor components
Technical Specifications
| Part Number | 3312138.000 |
| Product Type | Overload Protector Kit |
| Application | Air Conditioner Compressor Protection |
| OEM Part | Yes - Genuine Dometic |
Compatibility
| Model Number | Description |
| MRA4720 | Dometic DuoTherm Marine Air Conditioner |
Frequently Asked Questions
Q: How do I know if my overload protector has failed?
A: Common symptoms include the AC compressor failing to start, the unit tripping the circuit breaker repeatedly, clicking sounds without the compressor engaging, or the AC running briefly then shutting off. The overload protector may also show visible signs of burning or damage when inspected.
Q: Can I install this overload protector myself?
A: Installation requires working with electrical components and refrigerant systems. While mechanically inclined RV owners can perform this repair, we recommend having a certified RV technician or HVAC professional install the overload protector to ensure proper installation and system safety. Always disconnect power before attempting any AC repairs.
Q: Will this work on other Dometic air conditioner models?
A: This overload protector kit is specifically designed for the Dometic MRA4720 marine air conditioner. Using it on other models may result in improper protection or incompatibility. Always verify your exact model number before ordering to ensure you receive the correct replacement part.
Q: What causes an overload protector to fail?
A: Overload protectors typically fail due to age, repeated thermal cycling, electrical surges, or prolonged exposure to high temperatures. They can also trip and fail if the compressor itself is drawing excessive current due to mechanical problems, low refrigerant, or dirty condenser coils. If your new overload protector fails quickly, have the entire AC system inspected for underlying issues.
Why Choose Elkhart RV Parts?
At Elkhart RV Parts, we specialize in hard-to-find Dometic replacement parts that keep your RV systems running smoothly. Located in Elkhart, Indiana — the RV Capital of the World — we understand the importance of getting the right part quickly. We stock only genuine OEM Dometic components and provide expert support to help you identify exactly what you need. With fast shipping and knowledgeable staff, we're your trusted source for Dometic DuoTherm air conditioner parts.
Original: $52.99
-65%$52.99
$18.55Product Information
Product Information
Shipping & Returns
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Description
The Dometic DuoTherm AC Overload Protector Kit (Part# 3312138.000) is a critical safety component designed to protect your RV air conditioner's compressor from electrical overload and damage. This genuine OEM replacement kit is specifically engineered for the Dometic MRA4720 marine and RV air conditioning unit, providing reliable thermal protection that prevents costly compressor failures. If your AC unit is tripping breakers, failing to start, or the compressor is running hot, this overload protector kit is likely the solution you need.
Key Features
- Genuine Dometic OEM Part: Factory-engineered overload protector ensures perfect fit and reliable performance
- Compressor Protection: Automatically shuts off power when excessive current or heat is detected, preventing permanent compressor damage
- Complete Replacement Kit: Includes all necessary components for a proper installation
- Direct Fit for MRA4720: Designed specifically for Dometic DuoTherm MRA4720 marine air conditioner units
- Easy Identification: Replaces failed or tripping overload protectors that prevent AC startup
- Critical Safety Component: Protects your investment by preventing electrical damage to expensive compressor components
Technical Specifications
| Part Number | 3312138.000 |
| Product Type | Overload Protector Kit |
| Application | Air Conditioner Compressor Protection |
| OEM Part | Yes - Genuine Dometic |
Compatibility
| Model Number | Description |
| MRA4720 | Dometic DuoTherm Marine Air Conditioner |
Frequently Asked Questions
Q: How do I know if my overload protector has failed?
A: Common symptoms include the AC compressor failing to start, the unit tripping the circuit breaker repeatedly, clicking sounds without the compressor engaging, or the AC running briefly then shutting off. The overload protector may also show visible signs of burning or damage when inspected.
Q: Can I install this overload protector myself?
A: Installation requires working with electrical components and refrigerant systems. While mechanically inclined RV owners can perform this repair, we recommend having a certified RV technician or HVAC professional install the overload protector to ensure proper installation and system safety. Always disconnect power before attempting any AC repairs.
Q: Will this work on other Dometic air conditioner models?
A: This overload protector kit is specifically designed for the Dometic MRA4720 marine air conditioner. Using it on other models may result in improper protection or incompatibility. Always verify your exact model number before ordering to ensure you receive the correct replacement part.
Q: What causes an overload protector to fail?
A: Overload protectors typically fail due to age, repeated thermal cycling, electrical surges, or prolonged exposure to high temperatures. They can also trip and fail if the compressor itself is drawing excessive current due to mechanical problems, low refrigerant, or dirty condenser coils. If your new overload protector fails quickly, have the entire AC system inspected for underlying issues.
Why Choose Elkhart RV Parts?
At Elkhart RV Parts, we specialize in hard-to-find Dometic replacement parts that keep your RV systems running smoothly. Located in Elkhart, Indiana — the RV Capital of the World — we understand the importance of getting the right part quickly. We stock only genuine OEM Dometic components and provide expert support to help you identify exactly what you need. With fast shipping and knowledgeable staff, we're your trusted source for Dometic DuoTherm air conditioner parts.
