Need to know what e91 error code for intex hot tub

limited info generic answer u code doesnt show for intex their codes usually start with E this is a manual that has the trouble shooting on page 20 ------- https://www.manua.ls/intex/purespa/manual?p=1 --------- and pg 13 has the codes

Water temp sensor broken ( failed) notify intex ( good luck ) do online search for replacement

The E90 code on the Intex spa is due to a dirty water flow sensor. ... The black wire is plugged into a white wire, carefully unplug it and unscrew the sensor. Clean it good and blow out the hole it goes in. This will fix the code and you will be back in business https://www.justanswer.com/pool-and-spa/ap9qh-i-m-having-error-code-90-intex-hot-tub-intex.html

Answer
E96 means the PureSpa is experiencing a system error. If the control panel displays this error, turn off the system and unplug it. Plug the unit back in and restart it. If the error persists, turn it off and unplug it. After unplugging it, unscrew the B and C connection until water starts to leak out. Do not unscrew them to the point that they come off of the tub as you can lose all the water in the tub. Loosening them until the leak will release any air from the control base. Tighten the connections and restart the unit. If problem persists, please contact the Intex Service Center for assistance.

Hi my Intex hot tub spa is throwing an E90 code every time I try to turn on the filter and heating. What do I need to do to fix this?

Intex Inflatable Hot Tub

Hi, according to this site How to Treat Your Hot Tub Best Hot Tub for 2014
First check th pH levels with the pH level checker.That is pretty straightforward and should be included in instructions with your pH checker (which may have come with your hot tub)

It's good to do a chlorine shock once you fill the hot tub with water.

So what will you need?
pH tester/pH tester strips
chlorine
And chemicals for balancing ph ... pH+ and pH- which you will surely find in a shop with pools.
Each of this should come with instructions.
Good luck!

RE: INTEX PureSpa - E96 error code.

This also happened to me, just after having it for 1 year. I followed the scanty instructions in the troubleshooting section to no avail. I called for "technical assistance" twice and got random females with heavy Asian accents and absolutely NO technical know-how.

ME: "I got a E96 error code."
AL (Asian Lady): "When you buy it? If less than year, we send new base."
ME: "It's been longer than that, can I just buy the base then?"
AL: "Yes, $380 and we send it you."
ME: "But I paid $350 for the whole thing new!"
AL: "It's cheaper just buy new one."
ME: "Sure, but can't we troubleshoot this one?"
AL: "We can no more troubleshooting."

No supervisor was available, I was told to hang up and try again for someone else. Persisting, I pried info from one that it was "pump bloken," from the other "bad consore." I believed both were full of it and had no idea what they were talking about.

MY FIX: I disconnected unit from spa. Removed console from base. Turned base upside down to inspect pump and find any ID markings. Found no obvious problem with pump or heating mechanism. Spend few hours time researching cost to buy identical pump. Gave up. Returned to unit, reassembled it, and it worked perfectly!

MORAL TO THE STORY: Intex products are fine, their Tech Support is a joke. I suspect the console had detected air in the pump and that it was stuck in a system error cycle which required a prolonged rest from any power input to refresh. Also, turning the unit over (while inspecting it) may have flushed any remaining water around the onboard pump sensor.

Don't listen to their know-nothing "tech support" when they suggest it is a GFCI problem, (or some of the others here who give this advice without really knowing).

Just keep it fully unplugged for at least a few hours to wipe the system memory! Since it's a circuit board, it's like a mini-computer. Actually, it's just like a modem that requires resetting. If you unplug it and then replug it too soon, you've solved nothing, the on-board circuitry retains enough voltage to prevent it from resetting. You need to keep it unplugged for an extended period of time.

Hope this helps. Best of luck!

-Matt

The 5N error code is actually an SN error code which means one of your sensors is bad.

Rod Kidman
www.uspartscenter.com

the switch on top of the transmission where the shift cable is . it probly is not anny good. check all wiring . make sure thair is no dirt inside the connector