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Will only heat on high mode hot tub - Pool & Spa

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Sounds like low speed isn't providing enough water flow to close the pressure switch that allows heater to run. Its unlikely anything has changed in the pump other than a possible obstruction so to troubleshoot by most common failures first, try removing filter cartridges. If it heats on low speed with no cartridges installed then you need new filter cartridges (even if they look ok). If not the pressure switch might need adjusted or replaced. Most pressure switches can be bypassed with a jumper wire to diagnose but should never be left bypassed for normal operation.

Posted on Feb 12, 2017

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Posted on Jan 02, 2017

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SOURCE: I have a 2004 great lakes hot tub with a balboa

check to see that the flow switch is working properly, it may not have enough flow on low speed to allow the heater to turn on. Make sure your filter/s is/are clean. If you have a pressure switch instead of a flow switch, it may need to be adjusted or replaced.

Posted on Feb 09, 2010

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My Balboa 300F hot tub will not heat up. I am not able to get it out of economy mode. What can I do?


First, balboa does not manufacture hot tubs! They make control systems for hot tubs. If you are no longer able to switch between modes, then your topside control panel buttons are dead or falling. But... Even if you are still in economy mode, spa should still heat up. Once a demand for heat is recognized, you have a "Heat Call" and heater should come on. Is the "heat on" light, illuminated? If so, water should be heating, if not heater element may be bad? A multi meter would be good here: is there proper voltage at terminals on circuit board to heater? If so, bad element! If no voltage, then heater is not necessarily bad, probably just fine, I would then look at sensors? Good luck

Feb 23, 2015 | Pool & Spa

2 Answers

My hot tub is not coming on at all and is giving me a Pr code. What can I do?


please follow this steps and fix it. God bless you
If the unit won't start, make sure power is on at the electrical panel or the electrical panel . Then test the pump and the motor. Check for and repair broken wires or loose or corroded terminals. If necessary, have the pump switch control tested and serviced professionally.
If the jets do not work, clear a blocked water intake of hair and other particles (see below) or replace a broken jet (see below).
If the water in your spa or hot tub is too hot or too cold, check to see if the high-limit reset switch has been tripped and, if needed, reset it. Adjust the thermostat setting and have the thermostat serviced if the problem persists. If necessary, test and replace a faulty heating elements
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Nov 26, 2013 | Qca Spas Dream Series Dream Master Hot Tub...

2 Answers

I am getting a Pr code and the tub is not coming on at all


follow this steps and fix it. God bless you
If the unit won't start, make sure power is on at the electrical outletor the electrical panel Then test the pump and the motor. Check for and repair broken wires or loose or corroded terminals. If necessary, have the pump switch control tested and serviced professionally.
If the jets do not work, clear a blocked water intake of hair and other particles (see below) or replace a broken jet (see below).
If the water in your spa or hot tub is too hot or too cold, check to see if the high-limit reset switch has been tripped and, if needed, reset it. Adjust the thermostat setting and have the thermostat serviced if the problem persists. If necessary, test and replace a faulty heating elements
125a10b3-4403-4cc7-8741-9137c999473e.jpg

Nov 26, 2013 | Qca Spas Dream Series Dream Master Hot Tub...

1 Answer

In econ mode my 1998 spaform hot tub does not appear to heat but it is ok in standard mode.


in the economy mode it will only maintain a temperature so that it will not freeze. Economy mode is mostly for vacation time or for winter if you are not going to be using the hot tub for an extended period of time.
Put it into the standard mode and you will be able to have a HOT tub and will function as it should

US Parts Center

Aug 22, 2011 | Pool & Spa

1 Answer

I just installed my new X400 Dreamaker Spa. I filled it with water (although cold) and it has been warming up for approx. 18 hours and is only at 80 degrees? Is this normal? How long should it take to...


This is normal with the dream maker spa. The dream maker spas are poorly insulated, and only run 120 volts with a very small heater.
When the unit is first filled, the hot tub will not heat full time either. Most new hot tubs will have freeze protection below 50 degrees F. They will recirculate automatically using the friction and the pumps heat to warm the water above 50 degrees, and then the heating unit will kick on. These hot tubs do not heat while the jets are on high either, so once you are in it using the jets on high, the temperature will start to fall.

Now that you are up to 80 degrees, it should heat up fairly quick however.

Nov 19, 2010 | Dream Maker Spas Dream Maker Ez Spa Hot...

1 Answer

Pump is running ever 5 minutes. The heat in the


Sounds as if the 'mode' for the tub is set to sense the temperature of the water. see if there is a setting on the control box to a 'timed' setting for filtering and heating instead of controlled by the temperature setting. the problem is the the control box is away from the water and when it calls for heat it is because the water is cooler there than in the hot tub. so when it calls for heat and the water starts to circulate it gets the hot water from the body of the hot tub and then shut down because it senses the 'hot water'. make sense?

Feb 23, 2009 | Blue Wave Aruba 15' Round 54" Resin Pool...

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