RV air conditioners freeze up due to restricted airflow, dirty filters, low refrigerant, or thermostat issues. Turn off the AC, let ice melt completely, then clean or replace the air filter and check for blockages.
While there's no direct plug-and-play replacement for the Atwood GC10A-4E with a gas-only tankless unit, you can upgrade to dual-fuel tankless heaters like the Girard GSWH-2 or Truma AquaGo. These maintain electric capability while providing instant hot water and better efficiency.
Unfortunately, you cannot replace just the tank on a Suburban SW6P water heater - the tank and outer housing are manufactured as one integrated unit. When rust appears during flushing, it's time to replace the entire water heater.
Atwood 90029 mixing valve has internal O-rings that deteriorate during storage. Can attempt rebuild with new O-rings, but full replacement often better choice after 8 months sitting. Valve is reasonably priced and straightforward to replace.
To add electric heat while keeping the anode rod, look for kits that install in the drain port or use a combo anode/element. Avoid kits that replace the anode port entirely on cast iron tanks. The anode is critical for tank longevity.
Girard II tankless requires different wiring than DSI tank heater. Run new 10 gauge 12V power with 30A fuse. Do not reuse old DSI harness. Follow Girard diagram exactly for proper operation.
Several companies specialize in rebuilding Oasis RV heaters, including RV Parts Country, Suburban Manufacturing, and local RV repair shops. You can also attempt basic repairs yourself or consider upgrading to a newer heating system.
Your Suburban SW6D water heater likely has a combustion air intake blockage or ECO switch issue preventing proper airflow. The problem occurs because the unit needs adequate combustion air to maintain the flame safely.
Tankless RV water heaters lose significant efficiency at high altitude - about 4% per 1,000 feet. Above 4,500 feet, expect reduced output and possible flame failure. Consider traditional tank heaters if you frequently camp in mountains.
Popping and crackling sounds from your RV water heater are usually caused by sediment buildup on the heating element. While not immediately dangerous, you should drain and flush the tank to prevent damage and restore quiet operation.
Everything you need to know about RV plumbing systems from fresh water supply to waste management.
Replace Atwood GC6AA-10E with Dometic G6A-8E - its the same heater under new branding. Dometic acquired Atwood so mounting patterns and connections should match directly.
Suburban SDN2U thermocouple position issues are known on 2024-2025 models. Adjust thermocouple tip position to match working burner - should sit in outer flame cone. This is likely warranty repair on new Jayco. Document issue before DIY attempts.
New RV water heater PRV dripping may be normal thermal expansion or defective valve. Check water pressure first. Minor drips during heating normal. Constant dripping indicates high pressure or bad valve needing warranty claim.