If your tub is displaying this message it simply means that there is an issue with water flow. … 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.

Why does my hot tub keep saying Flo?

If your tub is displaying this message it simply means that there is an issue with water flow. … 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.

What does flow error mean?

My hot tub has a flow error. All hot tubs are equiped with a way of detecting that there is water flowing through the heater. … A flow error is the most common type of problem that arises in hot tubs. There are lots of possible causes, but the most common are: Water issues: Dirty filters, low water levels, blockages.

How do you fix the error code on a hot tub?

1. Check the water level.
2. Release pump airlocks.
3. Check the filter, pump and valves for any obstructions.
4. Clean the hot tub filter.
5. Is the pump working?

Where is flow sensor on hot tub?

The Pressure Switch on a hot tub or spa is a pressure sensor that is mounted onto the heater housing, or very close to the exit point of the heater. It’s sole purpose is to shut off the heater if low pressure (low water flow) occurs.

What does Flo mean on Arctic spa?

So your pump comes on low speed. This switch has a diaphragm side of it which is going to go up, close the contact between these two points. If it does not close the contact you’re going to get an FLO. which means flow switch open because the contacts have not closed.

How do you bypass a flow sensor?

1. Shut off the circuit breaker that controls electricity to the pool heater and the pool pump that sends water through the heater. …
2. Use a screwdriver to take out the screws holding the housing over the heater. …
3. Detach the two wires from the sensor.

What is a circulation pump on a hot tub?

Hot tub circulation pumps are low-flow pumps that constantly circulate in water as slowly as possible to provide your spa a continued filter, heat and chemically treated water.

Where is the pressure switch on a hot tub?

The pressure switch is often located either on a PVC plumbing part next to the spa pack or directly mounted onto the stainless steel heater manifold or tube. The heater manifold can be found either underneath, inside or attached to the power control box.

How do I reset the high limit switch on my hot tub?

The hot tub high limit switch is sometimes triggered when you’re refilling your hot tub and can be reset by pressing the large red button on your spa pack.

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How do I reset my mass airflow sensor?

1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF.
3. Disconnect mass air flow sensor harness connector.
4. Restart engine and let it idle for at least 5 seconds.
5. Stop engine and reconnect mass air flow sensor harness connector.
6. Make sure DTC P0102 is displayed.
7. Erase the DTC memory. “

How do I know if my flow switch is bad?

”No Flow” light coming on probably means the cell’s flow switch has gone bad. Verify that the pump is running first (water is actually flowing through the line). If “No Flow” stays on the flow switch needs replacing. ”Flow” LED turning from green to red means water flow through the system has been disrupted.

Why would a car run better with the mass air flow sensor unplugged?

The MAF sensor measures air weight in grams per second and air temperature and if either of those two are off then the ECU may command a leaner or a richer mixture. By disconnecting the sensor the ECU switches to limp mode and the car may idle better .

What mode should hot tub be on?

We reccommend setting your spa to “Auto” so that the water is always warm and ready for you to use. If you ever notice that your hot tub water temperature has dropped, but there are no error messages displayed on your control panel, you should check that the spa is set to “Auto” mode.

What does F8 mean on a hot tub?

Filtration Cycles run from F1 to F8 (F1 = 1 hour every 12 hours / F8 = 8 hours every 12 hours). Preset cycle set from factory is F1, so if in ec or sl mode your water will not reach desired temperature.

What is SL mode on hot tub?

SL: Sleep – Sleep mode will only allow the spa to heat within 20 degrees of the set temperature.

How do I reset my Arctic Spa?

Remove the spa cover and allow water to cool. Once the heater has cooled, reset by pushing any button. If the hot tub does not reset, shut off power to the spa and call your supplier for a service. Flow switch open.

How does hot tub flow switch work?

Hot tub flow switches and pressure switches monitor the flow of water through your tub and act as a safety device, turning the heater off if the water flow is interrupted. This safety mechanism is built into hot tubs to prevent damage to your heater and other equipment.

How do you check a Jacuzzi flow switch?

To test a flow switch, disconnect the power to the spa and unplug the two wires connected to the flow switch electrical tabs. Use another short piece of wire to connect the two wires you just pulled off that connect the spa to the main control panel.

How do I bypass the pressure switch on my pool heater?

You can also temporarily bypass the pressure switch by using a jumper wire to make good contact with both terminals on the switch. If the switch is the problem, bypassing it should allow your heater to start running.

How much does it cost to replace a spa pump?

How Much Does It Cost to Replace a Hot Tub Pump? Hot tub pump and motor replacement cost ranges from $200 to $1,200, depending on the type. Circulation models run $200 to $500, not including installation. The cost to replace hot tub pump with two speeds is $750 to $1,200.

Should a hot tub circulation pump run all the time?

Should My Circulation Pump Be On All the Time? Many modern spas are designed so the water is circulated continuously, 24 hours a day. If this is the case, just make sure your pump runs quietly and constantly. … Check your spa owner’s manual if you want to adjust those settings and have it filter more or less frequently.

How do I reset my hot tub pump?

1. Locate the spa’s high-limit reset. This is a red button found on many spa packs. …
2. Press the high-limit reset button. …
3. Turn on your spa and observe its operation. …
4. Flip the breaker panel switch on or press the reset button on the GFCI outlet to restore power.

How do you test a flow switch?

1. Put cover on the flow switch and turn power on. Video of the Day.
2. Start flow through the designated system.
3. Observe flow in operation to determine if flow switch is working properly.
4. Repeat this process many times to ensure flow switch and designated system is in fact working accurately. Tip.

Do you need to drain hot tub to replace flow switch?

If you haven’t any valves and the switch screws directly into the heater manifold, you will have to drain the spa in order to change the switch. If your switch screws directly into the heater manifold and you have service valves, you might want to drain water from at least the heater before removing the switch.

What does a spa pressure switch do?

When it comes to your hot tub, the pressure switch (also often referred to as a flow switch), makes sure that water is flowing while your heater is on so that in the event water is not flowing your heater will not over heat, and burn itself up.

What does pressure switch do?

Pressure switches are important components for controlling the activation and deactivation of pumps in fluid systems when pressure thresholds are reached. They are also used in process control systems for maintaining steady pneumatic or mechanical pressure.

How do I know if my high limit switch is bad?

One of the most common issues that happens when a high limit switch goes bad is that it fails to signal the blower fan to turn off. If your fan keeps running continuously (and you’ve checked that your thermostat is set to AUTO rather than ON), that could be a sign of a bad high limit switch.

Where is the high limit reset button?

The High Limit Reset Button is located behind the gas valve.