![]() ![]() Compare the total square inches of each with the manufacturers requirements to ensure ample air flow for the required cooling capacities. Measure the size of your vents and returns.This unit wasn't able to move enough air and its coils would freeze causing the Cruisair unit to shutdown with an HP error. If you had work done recently on your boat, you may find ducts that were compressed or blocked that need to be fixed Look for kinks, broken connections or blockages in the ductwork.Or, start by looking at the return air grill and follow the flow of air Refer to the owner's manual for locations of all of the air filters on your marine ac unit. If they aren't working properly, you're likely to see errors. This is by far the most common problem with boat ac units we see in the field. Check and clean or replace all of your air filters.Most boats with ac and boats with heat pumps use seawater for cooling and/or heating.Ĭlean or change your boat's ac filters regularly! In other words, if your evaporator coil is freezing, it isn't that your system is cooling too much, but that there isn't enough air flowing over the coils to keep them from freezing and your air conditioning system will stop working. ![]() Check your airflow - especially if your evaporator coil is freezing overĪ properly functioning evaporator coil is cold enough to quickly freeze the moisture in the air IF it doesn't have enough airflow. These often cause High Pressure Faults (HPF codes)ģ. Also check out this page about cleaning out your boat ac saltwater system.Ī clogged strainer can break marine a-c units. There are some other options for marine ac line cleaner as well. Watch this video to see one approach to cleaning out the circulation pump and hoses on your marine air condition system.Remove those blockages or replace the hose anywhere that might impede the cooling water from flowing smoothly Remove hose clamps and inspect each section of hose for blockages or buildups.Note that insects like these spaces when your boat is out of the water, so make sure you check and clean them before launching your boat Remove any water growth or debris on your below water line thru hull strainer.Remove and clean your raw water strainer basket (i.e.If you don't see a steady, fast flow of air conditioning water, turn off your system and look for blockages: When you turn on your boat's A/C water pump, water should immediately begin flowing out the discharge port from the chilled water system. Check your boat's ac pump (raw water / sea water pump) for water flow Look for any blockages or debris on the the air vents or returns - which could be in the engine room, the cabin or near the unit itselfĢ.If you are living on your boat, we suggest checking and cleaning them 2 or 3 times a season. You should remove and clean or replace all the air filters on your boat at least once a season. If you have a split system with separate air handlers, you likely have at least one filter on those. The second filter is usually on the unit itself. Many people only check and clean one of them. Your boat's AC system probably has at least 2 air filters.It's important to learn how to clean boat air conditioner filters and coils.Clean your boat AC's air filters - all of them on your marine air conditioning systemĭirty boat ac filters break air conditioners 9 Tips To Get Your Marine Air Conditioner Working 1. ![]()
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