marine air systems troubleshooting

Sometimes, the noise is because of friction and some lubrication will stop it. You can clean the filter but extensive clogging will need a replacement. Your AC unit’s fan keeps the evaporator coil cool for efficient operation of the condenser. Clogged air conditioning condenser coils can make your boat unbearably hot. If the strainer is clear but an insufficient amount of water seems to be running through the system anyway, the cause could be a bad water-pump impeller, an easy fix for most skippers. The entry of large particles, critters and debris can also make the pump noisy. But here’s the good news—if your system conks out, getting it going again will often be pretty simple. If the boat planes or the waterline changes, it can leave the pump out of the water, preventing it from performing optimally. View & download of more than 1 Marine Air Systems PDF user manuals, service manuals, operating guides. A dirty condenser filter will restrict the flow of water, and this can cause the unit to overflow. If the difference is less, the problem could be a loss of refrigerant charge; although the system is supposed to be a closed loop, sometimes refrigerant leaks out. A professional marine air conditioner technician has requisite experience and up-to-date tools to perform in-depth diagnostic tests, repairs, and maintenance to bring your unit up to speed. While you’re looking for the manual, by the way, here are a few things that may come in handy at some point in the near future. Faulty bearings can also make the pump loud. Most marine FWC thermostats open at 160°F and will be fully open at approximately 180°F. Air-conditioning systems come in different configurations, but all share three major components: The evaporator, where boiling refrigerant absorbs heat from the surrounding air; the compressor, which pushes the refrigerant through the system; and the condenser, where the refrigerant is cooled and liquefied before being pumped back to the evaporator. Many skippers never switch to reverse cycle, but they should: There’s a reversing valve in the system that can stick if it’s not activated regularly. You can also experience this problem if the thermostat is set too low. How do you make a living on the road? Remove anything restricting the air flow. Make sure bleed valve is tightly closed. There are also safety systems incorporated such as a bursting disk and numero… The manual explains the things you can check in the system and the correct procedure. You can flush the system with a weak solution of biodegradable acid or pressurized water. The evaporator/fan/ducting assembly is called an “air handler.” The warm air that’s pulled in from the cabin is called “return” air, while the “supply” air is the cold air coming out of the air handler. Fan Does Not Work While the Compressor Is Running, 10. From 1977 until today, Marine Air Systems has represented innovation in marine air conditioning. Inspect the hoses from the sea stock, strainer, pump, to the thru-hull. This indicates malfunctioning reversing valves. Check the drain by blocking it temporarily and filling the pan with fresh water—it should be gone in 30 seconds or less when you unblock the drain. We would love to hear your thoughts! If fre- quent bleeding is necessary, check for air leaks. Always disconnect power supply prior to perform installation, servicing or maintenance. It’s July, and a skipper’s thoughts turn to his air-conditioning system—especially if the darn thing stops working and his family moves into the Holiday Inn next door to the marina. It can also be because of a short circuit in the compressor and this requires a replacement by a professional. Welcome to Brad's Marine Air Conditioning! You may also trigger the HEAT sensor when operating the AC during warm temperatures. The pump needs to be submerged to draw water into the AC unit. All Rights Reserved. Email: brad@bradsmarineac.com Look for damage, clog and anything which can obstruct the smooth flow of cooling water. Verify seawater temperature. Email JDMMarineco@Gmail.com. We are reader supported. The Replacement Cruisair Compressor used in F and R series units are also available for Btu Focused initially on self-contained systems that are ideal for small to mid-sized boats, Marine Air climate systems provided customers with a “large boat” feeling of comfort and luxury. Often, a noisy AC unit results from a dirty fan motor. Air conditioners don’t really produce cold, they remove heat. Test the fan with a jumper to determine if it’s still working. Morten is the founder of GoDownsize. In this article, we look at the common issues to check when your vessel’s AC stutters. If required, charge the system with fresh refrigerant. Inspect the reversing valve relay to see if it’s burned. As the phase-converting refrigerant passes through the evaporator coils, it gets colder but more gaseous (because it’s boiling), and absorbs heat from the surrounding air.

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