Home Support
Yes, the MAXXFAN and MAXXFAN Plus are designed with dual lifting arms to fully support the lid if installed properly. This makes the lid very sturdy and able to withstand high driving speeds when left open, it also prevents the lid from vibrating and rattling during high winds when the RV is parked. Be sure to fully open the lid when driving so the dual lift arms provide the maximum support for the lid.
Both lid colors will let light into the RV. The smoke-tinted lid is similar to sunglasses or tinted windows and will allow more light and heat into the RV. Both lids are designed with materials to provide long life in extreme sun and weather conditions.
Simply rotate the four retaining knobs which hold the interior screen in place. The screen can then be rinsed off with water to clean. Mild detergent is also okay to clean stubborn grime on the screen.
No, the HandHeld Remote Control is infrared and only works when within line of sight of the MAXXFAN Plus.
The Rain Sensor has a ‘disable’ function. Simply activate the ‘disable’ function and the MAXXFAN will stay open and continue operating even if the Rain Sensor is wet. Use caution when disabling the Rain Sensor as water may enter the RV.
Yes, even with the Rain Sensor option it is perfectly acceptable to install a FANMATE Rain Cover over your MAXXFAN or MAXXFAN Plus. The FANMATE will allow the MAXXFAN to continue to be operated even when it is raining while protecting your RV from rain intrusion.
Yes, the MAXXFAN Deluxe is designed with dual lifting arms to fully support the lid if installed properly. This makes the lid very sturdy and able to withstand high driving speeds when left open, it also prevents the lid from vibrating and rattling during high winds when the RV is parked. Be sure to fully open the lid when driving so the dual lift arms provide the maximum support for the lid.
The MAXXFAN Deluxe is only designed to be installed with the rain shield area pointing to the rear of the RV (hinge toward the front). If you do not have room for the overhang of the MAXXFAN Deluxe lid we recommend installing a MAXXFAN or MAXXFAN Plus with our FANMATE Rain Cover for great ventilation with rain free operation.
No, the HandHeld Remote Control is infrared and only works when within line of sight of the MAXXFAN Deluxe.
– If you are suddenly hearing a high pitch noise from the fan it is possible that the motor brushes need some cleaning. To clean the motor please proceed as shown in the video instructions. Always remember to disconnect power supply before access the appliance. – If you find the noise coming from the fan blade touching the housing, you can try to disassembly the fan and reassembly in the correct position. Always remember to disconnect power supply before access the appliance.
– Try to close better the lid (using the electronic motor if present). the MAXXFAN Deluxe is designed with dual lifting arms to fully support and close the lid if installed properly. This makes the lid very sturdy and able to withstand high driving speeds, preventing the lid from vibrating and rattling. Be sure to fully open or close the lid when driving so the dual lift arms provide his maximum function for the lid. – The lid is made to work in fully open or fully closed position. Be sure to fully open or close it.
The opening mechanism might be damaged, please contact customer support
Contact customer support
No. Your Coleman®-Mach® air conditioner is a closed and sealed system and ideally should never require refrigerant recharging. Should you suspect that you have a low refrigerant charge, have the unit evaluated by a qualified service technician.
At RV Products, we have built more than five million RV air conditioners. A great many of them have never required service. However, as with any mechanical device, problems sometimes occur which require service or repairs. This type of service should always be performed by qualified service personnel.
Proper operating voltage is 115 VAC/60Hz. The unit may be run safely between 104 volts and 125 volts. Do not operate the air conditioner outside of these parameters, as serious component damage may result.
Light gauge and/or long extension cords tend to cause significant voltage drops to the vehicle/air conditioner. If used, the extension cord should be sized to maintain proper voltage at full load conditions. Serious component damage may occur if the air conditioner is operated under low voltage conditions (see Question 1 in this section). Neither 115-volt “cheater” plugs or 15-amp outlets are recommended.
No. Refrigerant will not become old or wear out. It is intended to last the lifetime of the unit.
To answer this question, you must understand; air conditioner capacities are rated primarily by their ability to transfer heat from the inside of your vehicle to the outside air. Your air conditioner may freeze up if it fails to pick up or transfer heat for any of the following reasons:
The Coleman-Mach heat pump is an effective heat source, as long as outdoor temperatures are above 45°F. Below 45°F, there is not enough heat outside for the system to absorb, and efficiency drops. With a lack of heat, you will run into a freeze up situation that will shut down your compressor, but leave the indoor blower running. We recommend that, if you know your outdoor temperatures are going to be below 45°F, simply heat the application with the LP furnace until the conditions are more ideal for the heat pump.
Propylene Glycol Boiler Antifreeze In 2002, Aqua-Hot changed the system design and in 2003 systems started using Propylene Glycol-based boiler antifreeze rated Generally Regarded AS Safe (GRAS).
All Aqua-Hot Systems manufactured after 2002 must use Propylene Glycol antifreeze, including Hydro-Hot™, Aqua-Hot 250P™, Aqua-Hot 250D™, Aqua-Hot 375D™, Aqua-Hot 375LP™, Aqua-Hot 400D™, Aqua-Hot 400P™, Aqua-Hot 450D™, Aqua-Hot 525D™, Aqua-Hot 600D™, and Aqua-Hot 675D™. DO NOT use Ethylene Glycol or Propylene Glycol automotive antifreeze in these Aqua-Hot systems.
Ethylene Glycol Antifreeze Ethylene glycol antifreeze is toxic, does not have the GRAS label and is not suitable for an Aqua-Hot system manufactured after 2002. Ethylene glycol was used in pre-2002 Aqua-Hot systems with the exterior domestic hot water loop design. Ethylene glycol can be used in these pre-2002 systems, as well as GRAS-labeled propylene glycol boiler antifreeze.
Unlike automotive antifreeze, boiler antifreeze has a higher boiling point and higher viscosity that helps lubricate the system, as well as the rust, scale and corrosion inhibitors. When properly used, it is capable of efficient and high heat transfer.
Aqua-Hot heating systems use either the Century or the Camco brand products. The color your system has depends on the coach manufacturer and the model year of your motorhome.
Aqua-Hot heating systems typically use either the Century or the Camco brand products. The color your system has depends on the coach manufacturer and the model year of your motorhome. TIP: Don’t mix colors in your Aqua-Hot system. Mixing pink and green boiler antifreeze produces a brown color that may be confused with corrosion, creating unnecessary service expense.
You can check the antifreeze color by looking at the expansion bottle for your Aqua-Hot heating system or draining a little from the drain valve. Aqua-Hot heating systems typically use either the Camco (pink color) boiler antifreeze or the Century (green color) brand products. The color your system has depends on the coach manufacturer and the model year of your motorhome.
Camco pink boiler antifreeze is available directly from Aqua-Hot as well as most RV dealers. Century green is available directly from Aqua-Hot.
Antifreeze Fill levels are visually checked at the expansion bottle when the Aqua-Hot system is warm and level; the proper fill level is at the HOT line.
Run your Aqua-Hot system to operating temperature. When it is warm and the coach is level, visually check the Aqua-Hot expansion bottle to see if the antifreeze solution is at the HOT mark. This gives you a true indication of the Aqua-Hot antifreeze solution level.
Check the percentage of propylene glycol antifreeze solution in your Aqua-Hot system with a calibrated coolant/antifreeze refractometer. Water will evaporate from the boiler antifreeze mixture over time, concentrating the antifreeze mixture and changing the ratio in the system.
The Aqua-Hot antrifreeze solution should fall between 35% and 50% propolyne glycol boiler antifreeze to water. Too much antifreeze lowers the heat transfer capability, causes sticking check valves in the heating zone lines and may coat the system’s interior surfaces resulting in lower water and interior cabin temperature levels. DO NOT exceed 50% propylene glycol in an Aqua-Hot system.
Discoloration of propylene glycol antifreeze solution may occur during normal operation of the Aqua-Hot system. This discoloration does not indicate a malfunction of the Aqua-Hot system or the antifreeze solution.
The following conditions may cause the antifreeze solution in your aqua-hot to change color:
Exposure of the antifreeze solution in the Aqua-Hot boiler tank to air It is important to keep the overflow bottle filled to the proper level*. If the Overflow bottle is empty, it must be refilled and the tank must be bled of air*. Air in the Aqua-hot boiler tank may cause the antifreeze solution to discolor. Low Levels of propylene glycol in the antifreeze and water solution The Aqua-Hot’s antifreeze solution should contain between 35% and 50% propylene glycol. Operating the Aqua-Hot with less than 35% propylene glycol may cause the antifreeze solution to discolor. Please see the Aqua-Hot’s Owner’s manual for instructions on testing the level propylene glycol in the Aqua-Hot’s antifreeze solution*. Adding Tap or Well Water to the Aqua-Hot system Adding tap or well water to your Aqua-Hot system may cause the antifreeze solution to discolor. Aqua-Hot recommends using only deionized or distilled water. Using tap or well water may cause corrosion of the Aqua-Hot system. Mixing Century Brand (Green) and Camco Brand (Pink) Boiler Antifreeze Motorhome manufacturers generally fill the Aqua-Hot with Century brand (green in color) or Camco brand (pink in color) boiler antifreeze. Mixing these two colors together may cause discoloration of the antifreeze solution in your Aqua-Hot.
Discoloration of the Aqua-Hot’s antifreeze Solution does not indicate a malfunction of the Aqua-Hot system or the antifreeze solution.
*Please see Aqua-Hot Owner’s and Service Manuals for instructions concerning all of the above items. These Manuals are available on the library page at www.aquahot.com
Aqua-Hot does not recommend draining and flushing the system unless the wrong type of fluids were added to the boiler fluid. For example, if your system uses propylene glycol “GRAS” antifreeze, but ethylene glycol was mistakenly added, the system would need to be flushed for safety reasons.
Use the Propylene Glycol-Based Antifreeze Protection chart to determine the protection you require in your Aqua-Hot system. Freezing Points are temperatures at which ice crystals form. Even below those temperatures, a slushy condition exist which may flow. Burst point is the temperature where damage will occur to the coach; at antifreeze solution percetages above 35%, burst protection is below -50 degrees F.
The propylene glycol antifreeze level of the solution in the Aqua-Hot heating system needs to fall between 35% and 50%. The Freeze Point is the temperature at which ice crystals will start to form in the antifreeze solution. Burst Point is the temperature where damage will occur to the coach. DO NOT exceed 50% Propylene Glycol in an Aqua-Hot System.
Inspect your Aqua-Hot system monthly. Run your Aqua-Hot system to operating temperature. When it is warm and the coach is level, visually check the Aqua-Hot expansion bottle to see if the antifreeze level is at the HOT mark. This gives you a true indication of the antifreeze solution level.
When you need to add antifreeze, determine the freeze protection you need in the final antifreeze solution and mix your replenishment solution accordingly. This will require a refractometer for accuracy.
After you obtain boiler antifreeze with the same color as your current system, it is critical that you determine the antifreeze mixture of the Propylene Glycol boiler antifreeze in your system. Water will evaporate from the boiler antifreeze mixture over time, concentrating antifreeze mixture and changing the ratio in the system.
Use a calibrated coolant/antifreeze refractometer and measure the ratio of Propylene Glycol in your antifreeze solution.
Caution: Automotive “ball type” hydrometers that measure ethylene glycol in the engine’s coolant system will not properly measure propylene glycol.
The correct antifreeze solution mixture for protecting your Aqua-Hot system depends on where you are and how cold it is — or can be.
Aqua-Hot recommends the antifreeze solution contain between 35% and 50% propylene glycol boiler antifreeze to water mixture. Too much antifreeze lowers the heat transfer capability, causes sticking check valves in the heating zone lines, and may coat the system’s interior surfaces resulting in lower water and interior cabin temperature levels. DO NOT exceed 50% propylene glycol in an Aqua-Hot system.
Your Aqua-Hot Factory Authorized Service Center will assure the proper ratios. If you do it yourself, check the color.
Camco and Century may not honor the warranty of their product if mixed with another company’s product.
Motorhome manufacturers generally fill the Aqua-Hot with Century brand (green in color) or Camco brand (pink in color) boiler antifreeze. Mixing these two colors together may cause discoloration of the antifreeze solution in your Aqua-Hot.
When your visual inspection level indicates a need to replenish the antifreeze solution:
Aqua-Hot carries two types of fuel filters. Please compare these two images with the fuel filter in your coach bay to determine which style you need.
These are discontinued fuel filters, if your clear bowl breaks, please order part number FLX-120-000 to convert to the current style. Part number FLX-120-000 includes mounting brackets.
LTCO (Low Temperature Cut-Off) Thermostat
200/250 Models: When the D4 (LTCO) light is off, the unit is up to temperature and ready to make interior heat. When the D4 (LTCO) light is on, either domestic water is being used, or the system is not yet fully up to temperature.
400/450 Models: A green LTCO light means that the heater is up to temperature and ready to make heat. When the LTCO light is not illuminated, either domestic water is being used, or the system is not yet fully up to temperature.
600/675 Models: The LTCO light will always be illuminated and does not impact hot water or heat functions.
Water System Disinfection
Diesel fuel containing a maximum of 20% Biofuel, commonly known as B20, may be used in diesel Aqua-Hot systems. However, please note that it may be necessary to change the fuel filter more frequently as B20 slightly cleans the fuel system.
If you need to return parts, you may email service@aquahot.com or call our customer service team at 574-AIR-XCEL, option 4. Please be sure to have your packing slip or order number ready. Returned parts are subject to a 20% restocking fee.
Aqua-Hot Heating Systems Inc. warrants the Aqua-Hot Heater to be free from defects in material and workmanship under normal use and service for a period of two years on both parts and labor commencing upon the original date of registration of the vehicle. Replacement parts are warranted for the remainder of the Heater’s standard warranty coverage or for six months, whichever is greater. The intent of this warranty is to protect the Heater’s end-user from such defects, which would occur in the manufacturing of the product. Thus, problems due to improper specifications, improper installations, improper use, the use of accessory parts or parts not authorized by Aqua-Hot Heating Systems Inc., repair by unauthorized persons, and damage or abuse of the Heater are specially excluded from warranty coverage. For additional information or to obtain a warranty repair authorization, please contact the Aqua-Hot Heating Systems Warranty Administrator at 574-AIR-XCEL (8:00 AM to 5:00 PM Mountain Standard Time) or visit www.aquahot.com.
Please follow these instructions when winterizing the Aqua-Hot’s Domestic Water Heating System:
