My Hot Tub Is Displaying FLO or DR. or DRY Error Message

My Hot Tub Is Displaying FLO or DR. or DRY Error Message
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FLO, DR. or DRY errors commonly occur due to debris and blockages. They can usually be easily fixed with some simple hot tub troubleshooting steps, such as cleaning your filters and topping off your water level. Learn more about what these error messages actually mean and what you can do to fix it.

FLO Error Message

If your tub is displaying this message it simply means that there is an issue with water flow. This may occur for a number of reasons. On your spa’s heater, there are sensors that read water pressure or there may be a pressure switch. These determine the error. The most common reasons for the FLO error message are dirty filters, a low water level, clogged circulation pumps or bad sensors.

The first thing you should do is check your tub’s water level. Top it off and see if this fixes the problem. Reset the tub GFI breaker to see if the error clears. If this simple fix doesn’t solve the problem, it may be time to check your hot tub filter.

The next thing to do is remove your tub filter cartridges. If the error clears, it was likely the fault of dirty filters. Clean your filters before putting them back in your tub to ensure the error message doesn’t pop up again.

If your hot tub is still showing the message, it may be your circulation pump causing the problem. Check your circulation pump for any debris that may be clogging it. Also, make sure that it has power going into it. If your circulation pump is clogged, you might be hearing a whining noise. If there is no clear issue to the circulation pump, consult a professional to find out if you need a new one.

If fixing any of these issues doesn’t work, it could be that you have faulty sensors. Consult an expert to find out whether or not you need new sensors.

DR or DRY Error Message

This error message is similar to the FLO error message. Like FLO issues, this can commonly be fixed by topping off your hot tub water level. DR or DRY will show up if there is little to no water travelling through your heater. There are a few simple things you can do to fix this problem. However, turn off the GFI and manually disconnect the power to the pump and heater before troubleshooting.

If your water level is fine, first ensure you don’t have too many closed jets and that they aren’t filled with debris. If your jets are clear, check for any blockages in the suction fitting and skimmer. Also, make sure that all of your hot tub’s valves are correctly closed. Dirty filters can also be the culprit for this error message, so checking them is a good idea. Restart the pump and heater to see if the error message is gone.

If the message still shows up, it may be due to a plumbing leak or an issue with your heat pump. In these cases, you should contact a professional to fix the problem.

Let us help you

We want to make sure that your hot tub is working properly. If you have any questions or need further guidance, feel free to contact us. We can help you figure out exactly what’s wrong with your hot tub and provide you with tips to prevent further issues.

1 Comment

  1. Susan Turner 1 year ago

    Hi just asking hoping you could help, we have a 2015 Free Flow Azure hot tub and it is pulling a FLO error code. The jets do NOT come on at low speed but seem to be fine on high speed. The filter is new and we have tried running with and without the filter in a still get the FLO error. We have burped it from fittings that led to pump and they seemed to have no air sound so we shut them back up when the water started coming out. We even tried to plunge down into the filter but still FLO reading???
    The water level is a bit more than max amount but is not to low. We do not know to start with the control panel, heater or pump??? The tub heater does come on and. We can get it up to temp. So want to order parts but have no idea where to start. We did talk to the tub shop were we got the tub but they were not much help at all.
    Hopefully you can point us in the right direction
    Thank-you !!!!!!

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