Question about Qca Spas Jewel Series Topaz Plus Hot Tub

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OH reading on my spa

Had a circuit blow in the kitchen which blew the circuit for the hot tub. Turn the braker back on and now i get the oh reading. What can i do? Had an electrican out, not electrical. .

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Either dirty or old filter or bad temp sensor

Posted on Oct 11, 2009

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1 Answer

The OH Light keeps coming on although the temperature never exceeded 100 degrees.


check your recirculation pump it sounds like it isnt working or plugged filters

Oct 16, 2014 | Pool & Spa

1 Answer

OH display and still heating


OH is overheat situation. high limits should shut down tub after 108 degrees.....high limits are shot.....replace the circ board

Dec 02, 2013 | Dream Maker Spas Dream Maker Ez Spa Hot...

1 Answer

I have just replaced my circuit board (balboa 53247) for my eclipse hot tub and as soon as I plugged the unit in, I got an OH reading from the top-side control. Then I noticed that if I pulled the temp....


Unfortunately, I would have started with the sensors and then escalated from there. A hot tub is one of those items that I generally recommend hiring a technician to sort out, it's just flat not worth the headache of troubleshooting without the know-how.

As for your particular problem, the OH code on a Balboa control pack is "O.ver H.eating" it means that the heat sensor detected high temp and shut down to prevent damage to the system (as well as cooking you like a pink lobster) The sensor could be bad or the control board could be malfunctioning. A new sensor is $75-85 if memory serves me and is relatively easy to replace. one sensor is in the heating tube and the other is screwed into the tub shell to monitor tub temp. I would suggest new sensors, both of them because when one goes out the other usually isn't far behind. Make sure you shut the power to the tub off at the breaker box before doing any kind of tub repair. If you have shutoff valves on your tub you can replace the internal one without draining the tub. the one in the shell you need to drain to replace (at least to the sensor hole level) I hope this helps you to get your tub working properly again, if you still experience issues after this, I suggest biting the bullet and calling in a tech. Thanks for your question =)

Oct 28, 2013 | Dream Maker Spas Dream Maker Ez Spa Hot...

1 Answer

Whered can I purchase a printed circuit board for 8203 series spa and what is the cost?


OH is the Over-Heat event code. Not likely related to the board, this comes up for a number of reasons -
Flow issues cause the heater tube to get too hot. Dirty filter, suction blockage, low water level etc...
Hi Limit sensor has failed or the temperature sensor reading incorrectly.
Usually its a flow related problem

Aug 05, 2012 | Pool & Spa

1 Answer

OH error QCA spa High jets work and heat


OH is the overheat code.

Your spa temperature is set above 108, or your thermostat is faulty & not reading correctly.

Jan 23, 2012 | Qca Spas Jewel Series Topaz Plus Hot Tub

1 Answer

Motor will not come on. flashing OH on tub display dial. Dream maker Model #8003 x 400 series 86L Just purchased used spa and have no manual or directions. thanks


OH stands for Over Heat situation.
If the motor is not working at all, you are getting the OH code because of that. The OH happens when there is not enough circulation in the hot tub which causes the water near the heater to overheat the sensor located in that area. It sounds like either the pump has failed, the wiring has shorted to the motor, or the control board is not telling the pump to come on.
Its probably a bad motor since the heater is obviously activating, which it wouldnt if the pumps motor was getting no power. Replace motor and all should be well again.

Apr 14, 2011 | Dream Maker Spas Dream Maker Ez Spa Hot...

1 Answer

Reads OH but still cold


yes although you probably have this fixed by now. Sounds like your sensors are bad, your filter is dirty(so there is not enough water flow) or one or both of your gate valves might be closed. My best guess is the sensor(s) is bad.

May 11, 2010 | Qca Spas Jewel Series Topaz Plus Hot Tub

2 Answers

Reads OH but still cold


you either have a bad temperature sensor (check the wires for damage) or a bad circuit board. I would recommend replacing the temp sensor first. If that doesn't work, pull the board and take it and have it tested.

Mar 18, 2010 | Qca Spas Jewel Series Topaz Plus Hot Tub

1 Answer

QCA Opal hot tub display reading OH.


The tub experienced an overheat situation. This may be due to leaving the t stat turned all the way up and not monitoring or the hi-limit sensor is defective. The hi-limit sensor will shut down the heating cicuit if temp gets above 105 D optimally.the fact that the heater light is on is a good sign that things are working at this point.Whether or not a suitable temp(100-103 D) will be arrived at is to be seen. If spa heat kicks off before set temp is reached then replace hi-limit sensor.

Apr 10, 2009 | Qca Spas Jewel Series Topaz Plus Hot Tub

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