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- OHH Error Code after freeze/new heater pump installed
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03-31-2014, 02:24 PM #1
We bought a new house with a 2010 hot tub currently there. The previous owners had cut the electricity to the spa, resulting in a freeze.
Essentially, after we thawed it, we fixed several broken pipes. We also replaced the topside control panel (Balboa VL700S), the heater pump because it was leaking (Aqua Flo Circ Master 1/15 HP 60HZ 230 Volt Pump 02093001-2010).
We have been heating the water with a bucket heater because we live in PA and it is cold here now. So, we just replaced the pump and topside.
When we turn it on, the jets come on, as well as blower and pump. However, after about 2 minutes everything shuts off and we get a code OHH-System Overheat.
We also just put new filters in because the previous owners hadn't changed it in 4 years (yah, thank you previous owners).
So, do we start with changing the two heat sensors? We also notice that the cluster of 6 clear tubes coming below the filter are clogged with dirt. Could that be causing the OHH?
Any help appreciated as we are ready to just drain and try to recoup some of our costs ($2500 to buy with house and now about $400 in parts).
03-31-2014, 02:47 PM #2
Is the circulation pump you just replaced working and have good water flow out of the return? You can get an OHH when the sensor thinks the water reached 118 degrees in the heater and shuts it down. Is the heater hot to the touch right before it shuts down? If not maybe it is the sensor causing it, thinking the water is much warmer than it really is.
03-31-2014, 03:30 PM #3
Thank you so much for the fast reply-We are nearly at our wit's end!
The heater is not hot to the touch before it shuts down.
How would I check if the pump has good water flow out of the return?
Before we noticed the leak in the pump (and prior to replacement) we had a SNS code meaning one of the sensors were out of whack, but now all we get is the OHH code.
Do those sensors typically go bad? They are around $50 so I'm wondering if we try to replace them or if it is time to call a tech in at $150/hour? Or if we drain and try to sell it to someone who could fix it.
Thanks, Mary for your help.
04-01-2014, 07:40 AM #4
If you had the SNS code and now the OHH it very well could be the sensors. You would see water flowing out of the jets or return fitting if pump is running. Yes sensors can go bad and causing faulty error codes.
04-01-2014, 07:48 AM #5
Thank you again for the reply. We are going to order the two sensors. They are 30344. Should they both the same thing? They look new, but I fear the old owners may have put the wrong sensors on.
How would we know that this is indeed the two sensors we need? I attached a pic of our mother board.
04-01-2014, 07:51 AM #6
Those two sensors are the same. And yes those are the correct ones.
04-02-2014, 05:49 AM #7
04-21-2014, 03:21 PM #8
We finally got our two new sensors in. The SPA starts up and goes into Prime Mode for about 4 minutes, then flashes 100 73 22 24 and goes back into Prime. It just keeps doing this.
Could we have an air lock from replacing pump?
Any help/suggestion is appreciated!
04-21-2014, 03:46 PM #9
I am not sure why it would be doing this. It almost sounds like you keep loosing power and then back on again for some reason. I would try to clear air out of pump just in case. You can also email me directly at firstname.lastname@example.org.
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