Airstream Touring Coach Interstate 19 2023 Macerator Pump Winterizing User Manual
Macerator Pump Winterizing
Plan your winterizing and storage ahead, and be sure the holding tanks are drained and flushed thoroughly. This is very important, as the frozen sewage and water could seriously damage the system. After dumping the tanks, add RV, non-toxic antifreeze to one of the holding tanks and start the macerator pump. Run the pump until the RV, non-toxic antifreeze comes out the end of the pump hose, then close the dump valve. As an extra protection, open the toilet valve and add RV, non-toxic antifreeze through the toilet into the Black Water tank and pour RV, non-toxic antifreeze into a sink drain to protect the holding tanks, valves, and pump from residual water freezing.
Restoring Service
- Re-install the fully charged house batteries.
- Close the low point drain valves, holding tank dump valve, water faucets, and freshwater tank drain.
- Reconnect the water pump line.
- Add water to the freshwater tank.
- Turn the water pump on.
- Open and close faucet valves one at a time until the water runs clear at all faucets signaling the RV, and non-toxic antifreeze is flushed out of lines. Go back and recheck water clarity at all faucets.
- Turn off the water pump.
- Hook up city water, open faucet valves, and recheck water clarity.
- Close the water heater drain valve and reset the water heater valve to its normal operating position.
Toilet
Toilet Winterizing
Draining Method: Turn off the touring coach’s water supply. Drain the toilet bowl. Disconnect the supply line at the water valve. Completely drain the toilet’s water supply line.
Antifreeze Method: Use RV, non-toxic antifreeze only.
NOTE
To avoid damage when using air pressure to blow water from the lines, make sure the toilet valve is in the open position.
NOTE
If water is frozen in the toilet, do not attempt to flush until the ice thaws. Never use automotive-type antifreeze.
Maintenance
If the bowl-sealing blade does not operate freely after extended use, it may be restored to its original, smooth operating condition by applying a light film of silicone spray to the blade. To clean the toilet use Thetford Aqua Bowl or any other high-grade, non-abrasive cleaner. Do not use highly concentrated or high acid-content household cleaners. They may damage the rubber seals.
Troubleshooting
- Leaks:
- Back of toilet: check the water supply line connection at the water valve. Secure or tighten as necessary. If the leak persists from the water valve, replace.
- Vacuum breaker leaks while flushing: replace the vacuum breaker or water module, depending on the model.
- Between closet flange and toilet: check flange nuts for tightness. If the leak continues, remove the toilet and check the flange height. Use Thetford spacers to adjust, if necessary, to 7/16-in. above floor. Replace the flange seal.
- The toilet won’t hold water:
- Check for and remove any debris from the blade ball seal track.
- Check the blade/ball seal compression mechanism. If the blade/ball seal is worn, replace it.
- Harder than normal pedal operation: Apply a light film of Thetford Toilet Seal Lubricant & Conditioner or silicone spray to the blade/ball.
(Note: To avoid damage, do not use spray lubricants other than silicone.) - Poor flush: The pedal must be held completely down to flush. A good flush should be obtained within 2 to 3 seconds. If the problem persists, remove the water supply line and check the flow rate.
Electrical Diagrams
12-Volt Main Schematic
12-Volt Schematic
12-Volt Schematic
12-Volt Schematic
12-Volt Schematic
12-Volt Schematic
12-Volt Schematic
30-Amp 120-Volt Schematic
Audio and Video Schematic
Standard 30-Amp Circuit Breaker Layout
Solar Panel Wiring
A manual on the use of the solar system is included with the Airstream Owner’s Packet. Please read and understand all information before
Operating the system.
The charge controller senses the actual battery charge and regulates the charging to prevent over charging. The system requires the 12-volt feed from the battery to operate. The following diagram depicts the way Airstream wires the solar systems and is the recommended wiring for replacement solar systems.
Fresh Water Layout
FAQs and Answers
Electrical
- When I hit my 12-volt remote kill switch, at the sliding door, it does not turn on the 12-volt inside.
Answer: There could be two issues here. The first is that the batteries are below 8 VDC. If this is the case, there is not enough power to activate the switch. The second issue is that the remote is in the disabled position at the manual knob under the lounge. (Refer to Section 5 – Interior, for more information.) - What should I do to maintain my generator?
Answer: During the initial break in period, you will need to check your oil every 4 hours during the first 20 hours of operation. Once you reach 20 hours of operation, you will need to change the oil. (Refer to the Oman’s Owner’s manual for more information) - My generator stalls out or quits running if I turn a corner.
Answer: Make sure you check the oil level. There is a sensor built into the generator that will shut the engine down if it is too low. Turning the corner or stopping quickly while oil is low can cause this to happen. - What size batteries are in my Airstream Interstate 19?
Answer: Your Airstream is factory equipped with two Battle born 100Ah 12V LiFePO4 batteries. - My generator will not run properly while I am showing I have ¼ tank of fuel; however, it runs fine when tank is showing ½ or more.
Answer: This could be a demand issue. If you are using other appliances, the outside temperature is below 32°F, and the BTU output is lower than at 72°F, the generator will not run properly. This would cause the generator to stall out or run poorly by not creating the proper 120 volts of power. - What is the battery disconnect switch function?
Answer: The switch is used to cut power when the Interstate Nineteen is not being used or put into storage to preserve battery charge. It disengages or engages the 12-volt power supply from the house batteries to everything but the LPG detector, tank heaters, power lounge, and Magnum invertor. - Do you recommend using a surge protector when plugged into shore power?
Answer: Your Airstream is breaker protected. However, with the use of more personal electronic devices and the number of motorhome users in parks, added protection is always a plus. - What is my Cantrex inverter powering?
Answer: It is powering the TV and the Blu-Ray DVD player outlet. There is an additional outlet behind the driver’s seat as well. This plug is designed for no more than 1000 watts of combined power, and is intended for charging things such as laptops, phones, and TV usage. Plugging in items such as vacuums, hairdryers, etc. may harm the system. - I have an alarm going off at my sliding door.
Answer: Make sure your step and awnings are completely closed. If either of these are not properly closed, and the engine is running, it will cause the alarm to sound.
Plumbing
- Do I need a water regulator?
Answer: No, your Airstream is equipped with a built in regulator rated for 50 psi. - How do I get fresh water into my Interstate 19?
Answer: You can use the on board fresh water tank and 12-volt pump for your water supply when camping in a remote area, or hook to an external water source via potable water hose to exterior water inlet when parked at a campground. - What is the difference between a Gray Water tank and the Black Water tank?
Answer: The Gray Water tank holds water from shower and sink drains. The Black Water tank holds sewer water from the toilet. - Can I run the macerator pump if there is nowater going through it?
Answer: No, it will burn the macerator up if it is run dry for more the 10-30 seconds. Also, you should not run it more than 15 minutes continuously.
Reference Links
View Full User Guide: Airstream Touring Coach Interstate 19 2023 User Manual
Download Manuals: https://www.airstream.com/owners/manuals/
