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How often should I check for gas leaks and perform safety inspections on my RUS Model Series tankless water heater, like the RUS75eP?

Regular maintenance and safety inspections of your RUS Model Series tankless water heater, such as the RUS75eP, are essential to ensure its safe and efficient operation. Neglecting these inspections can lead to gas leaks, reduced performance, and potentially hazardous situations. Here's a comprehensive guide on how often you should check for gas leaks and perform safety inspections on your tankless water heater.

1. Routine Visual Inspection (Monthly):
Perform a visual inspection of your tankless water heater at least once a month. Check for any obvious signs of damage, loose connections, or corrosion on the unit. Look for rust or leaks around the water connections and gas supply lines. Ensure that there are no obstructions around the unit that could impede airflow or ventilation.
2. Check the Gas Supply Line (Monthly):
Inspect the gas supply line for any visible damage or wear. Look for cracks, kinks, or loose fittings. If you notice any issues, such as a damaged gas line or loose connections, it's crucial to address them immediately, as gas leaks can be extremely dangerous.
3. Test the Gas Shut-Off Valve (Monthly):
Verify that the gas shut-off valve for your tankless water heater is functioning correctly. Turn it off and on to ensure it operates smoothly and can be shut off in case of an emergency.
4. Check for Unusual Sounds or Odors (Monthly):
Listen for any unusual sounds, such as hissing or whistling, which could indicate a gas leak. Additionally, be vigilant for any unusual odors, like the smell of rotten eggs, which is a common indicator of a gas leak due to the added odorant in natural gas.
5. Examine the Venting System (Annually):
Inspect the venting system of your tankless water heater at least once a year. Look for any obstructions, debris, or signs of damage that might interfere with proper venting. Ensure that the vent pipes are securely attached and free from leaks.
6. Flush the System (Annually):
Mineral buildup can affect the efficiency and longevity of your tankless water heater. Annually, flush the system to remove any mineral deposits that may have accumulated in the heat exchanger. Refer to your owner's manual for specific instructions on how to perform this task.
7. Schedule Professional Maintenance (Annually):
While you can perform some maintenance tasks yourself, it's advisable to schedule an annual professional inspection and maintenance service for your tankless water heater. A certified technician can thoroughly check for potential issues, clean components, and ensure safe operation. They can also conduct combustion efficiency tests and inspect the ignition system.
8. Monitor Performance (Ongoing):
Keep an eye on your tankless water heater's performance. If you notice a decrease in hot water output, inconsistent temperature, or frequent error codes, it may indicate a problem that needs immediate attention.
9. Emergency Gas Leak Protocol (Always):
Familiarize yourself with the emergency gas leak protocol. This should include knowing how to shut off the gas supply to your tankless water heater and the main gas supply for your home. If you suspect a gas leak, evacuate the area immediately and contact your gas utility provider and emergency services.

In conclusion, regular maintenance and safety inspections are vital to ensure the safe and efficient operation of your RUS Model Series tankless water heater. Monthly visual checks, gas line inspections, and sound and odor checks can help you catch issues early. Annual professional maintenance, venting system inspections, and system flushing are crucial for long-term performance. Always prioritize safety and be prepared to respond to gas leaks promptly. Consult your owner's manual for model-specific guidelines, and consider creating a maintenance schedule to ensure your tankless water heater operates reliably for years to come.
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