Switching your RV water heater to electric power typically involves ensuring the tank is full of water and then activating both an external and internal switch. This method offers a convenient and often more cost-effective way to heat water when connected to shore power.
Understanding Your RV Water Heater
Most RVs come equipped with a water heater that can operate on either propane (gas), electricity, or sometimes both simultaneously for faster heating. Understanding your specific model is the first step, as switch locations can vary.
Essential Steps to Switch to Electric Operation
Before attempting to activate your electric water heater, it's crucial to follow these steps to prevent damage:
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Ensure the Water Tank is Full:
- Connect your RV to a fresh water source (city water or your RV's fresh water tank).
- Turn on a hot water faucet inside your RV until water flows steadily, indicating that the water heater tank is completely full and purged of air.
- Crucial Safety Warning: Never turn on the electric heating element if the water heater tank is empty. Operating the electric element without water in the tank will cause it to burn out very quickly and require replacement.
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Locate the Exterior Electric Switch:
- Go to the outside of your RV where the water heater access panel is located.
- Open the access panel.
- Look for a small toggle switch, often red or black, usually located near the bottom of the water heater unit. This is the main power switch for the electric heating element.
- Flip this switch to the "ON" position.
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Activate the Interior Electric Switch:
- Go inside your RV to your main monitor panel or control center.
- Locate the switch labeled for the "Electric Water Heater" or "AC Water Heater."
- Turn this switch to the "ON" position.
Once both the exterior and interior switches are engaged, your RV's electric water heater will begin heating water. The time it takes to heat will depend on the tank size and initial water temperature.
Why Choose Electric Over Propane?
| Feature | Electric Operation | Propane (Gas) Operation |
|---|---|---|
| Energy Source | Shore power (120V AC) | Propane |
| Cost | Generally cheaper when connected to campground power | Uses your RV's propane supply, which can be costly |
| Noise | Silent operation | Igniter and burner can be noisy |
| Efficiency | Good, especially for maintaining heat | Faster initial heating, good for quick hot water |
| Availability | Requires 30A or 50A shore power | Independent of shore power, uses onboard propane |
Troubleshooting Common Issues
- No Hot Water:
- Check both the exterior and interior electric switches are "ON."
- Verify your RV is connected to a live shore power source.
- Ensure the circuit breaker for the water heater (usually in your RV's power center) hasn't tripped.
- Confirm the water tank is full.
- Tripped Breaker: If the breaker repeatedly trips, there might be a short or an issue with the heating element. Consult a professional RV technician.
Additional Tips
- Combination Heating: Many RVs allow you to use both electric and propane heating simultaneously for faster recovery, especially after heavy hot water use.
- Winterizing: Remember to completely drain your water heater and bypass it when winterizing your RV to prevent freeze damage.
- Maintenance: Periodically check the anode rod (if applicable to your model) and flush the tank to remove sediment, ensuring optimal performance and longevity.
By following these simple steps, you can effectively switch your RV water heater to electric, enjoying a steady supply of hot water during your travels while conserving your propane supply. For more detailed instructions specific to your RV model, always consult your owner's manual.
