Intex Pure Spa E90 Error: Troubleshooting Filter Pump, Water Flow Sensors, and E96 System Error

Hello,

I have a problem with the jacuzzi pump, error E90 is displayed when the filter pump is turned on, which, according to the instructions, means the lack of water in the system. The pump connected "shortly" to the power supply works ok and filters the water. I was looking for a sensor that is responsible for checking the water level and after dismantling I found a system as in the picture. Two magnetic sensors (signed on the motherboard as flow1 and flow2) when the water flows are raised and close the system, causing the resistance to increase to ~2.2 Ohm, and a bit further a wire is wound in insulation (braid) forming a kind of coil, which is located directly under the AC transformer, on the board the connection is signed as scale + and scale -. I don't understand what is the task? is it related to flow sensors? Sensors after permanent contact (as if creating a full flow) and switching on the device display another error e96 (system error) Can anyone help?

I have the same problem as before the speaker.
The water filter pump will not turn on. After 10 seconds error E90 pops up and squeaks. Papa checked briefly works.
You have a solution what is the cause of this problem and how to solve it

Added after 24 [minutes]:

I found the reason for the filter pump not switching on. And error e90. The reason is a broken rod holding the impeller in the pump. After replacing the rod, the pump became dead and the error disappeared

Hello
And where did you buy this rod?

Hello. After displaying the E96 error, the reason was a damaged temperature sensor. The system has two identical sensors. Probably NTC 10Kohm sensors (difficult to buy). My measurements showed that at a temperature of about 28 degrees, the sensor resistance indicated about 8 kOhm. On the board in place of the sensor I put a 8.2 kOhm resistor. Works until today. As far as flow sensors are concerned, they are the most common reed switches.

Hello
She turned on the pump. For me, the rod is ok. If it still shows error E90, what could be the cause of the pump not working?

Good morning, maybe someone got to the bottom of the problem? I started the pump, replaced the axle, although it was not cracked, then worked for 5 minutes and stopped again and error E90. Have any of you, dear users, found a solution or will buying a new pump solve the problem?

Hello, I have the same - I changed the rotor axis to a ceramic one, cleaned the jacuzzi, put on a new filter, clean water and after 15 minutes of heating and filtering again e90 ... and the jacuzzi is less than 2 months old.

Added after 1 [minutes]:

>>20678083
It's under warranty so I don't know if it's best to return it

It's still under warranty, but I've been using it for a little over a year now. I researched a bit about spare parts, etc. and decided to buy a new pump. I did it today, the cost is $295 including shipping. Opening the shell and replacing this pump is invisible (there are no seals). If this does not help, I will try to use the warranty. I think that the cost of shipping on a pallet both ways for the warranty will be similar to the cost of this pump, and the waiting period will be incomparable. But in the case when you bought 2 months ago and this problem is actually very bad. The pump will arrive on Monday, I'll write how it goes.

Let me know, I'm going to give it back for guarantees because 2 months and lime, I bought it in an Aldi store

Same with me. I took everything apart, cleaned it. Previously with the E90 error there were hairs wound up on the rod in the pump, after cleaning it helped. Now I have no idea, it still doesn't work. I am thinking of buying a new pump for this intex.

>>16274863 https://youtube.com/shorts/rZk_55aaFek
>>17355200 >>17355200 https://youtube.com/shorts/rZk_55aaFek

Hi,
A bit on the subject of this pump, have you tried disconnecting it completely? My SPA is 2 days old and I already have an E90. I'm not going to either bother with it, let alone advertise it in the middle of summer. I have a sand pump + heat pump that heats 10x cheaper than a hot tub heater and I'm looking for adapters to plug into that. This could be a transition from the spigots at the hot tub to anything else standard, like 32 and 38mm pool hoses, Intex nut hoses, threaded transition, glued PP or PE fitting, doesn't matter. Have you come across such adapters somewhere?

This is unbelievable. I have been using the e90 for 3 years and it has indeed failed twice. The problem is that the rod in the rotor axis is made of poor materials and breaks. I explain this in a video on my youtube channel @iroexplorer. Please see. It makes no sense to convert the heating in such a cheap jacuzzi in my opinion. This rod together with the rotor are penny issues and the replacement is very simple.

>>21172369 perhaps not the rotor is the cause with me, I haven't checked it yet, while I have checked all the possible causes of the E90 from the manual and none fit. In terms of reworking the P.C. needs 1.3 kWh to heat 15,000 L by 1'C and the heater needs 2 kWh to heat 1340 L by 1'C. Small Jacuzzi or no small Jacuzzi, you have a device that will keep the water warm several times cheaper and you claim it is pointless to connect it I will look for those adapters though.

PS. I've seen the video before, I'll have a look at that pump today.

I do not switch off the jacuzzi and the filter and pump run practically all day long. This is a small power consumption and since I have photovoltaics it is practically zero. Even with the original jacuzzi pump it is no problem to keep the temperature at 36 degrees. In 99% of cases you have a broken or damaged rod in the rotor. The cost is ridiculous and the replacement for a layman is practically 8 screws to unscrew and that's it. Anyway, in a moment I will make a film on how to replace the rotor together with the rod in the rotor on my channel because I see that this is a big problem for some people. Please see my youtube channel . I will now show you exactly how to replace the complete set of impeller, impeller shaft and impeller o-rings.

Added after 54 [minutes]: .

The channel where the video about the rotor replacement and the E90 bug will be is @IRO Explorer on youtube .

Added after 3 [hours] 34 [minutes]:

https://youtu.be/NmZKuH32ydA .I invite you to a video about the E-90 fault

>>20680738 There is no need to replace the entire pump. The repair kit, i.e. impeller, stem and guide pre-cup is 95% of the cause of the E90 error. Replacement is trivial. Anyway there is a YouTube video about it my @iroexplorer

In my E90 it usually pops up when there is a dirty filter. After replacing the filter the problem disappears.