Lazy-spa Hydrojet Pro - E02 fault find - pump failure
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- Опубликовано: 29 сен 2020
- Root cause analysis before E02 trip is due to ruptured plastic filtration 12v pump motor armature.
The ruptured plastic is caused by water ingression into the permanent magnet/s in the armature, swelling the armature plastic. Rupturing suspected cause is armature overheat from numerous E02 trippages across 2 year's operation.
When 12v power is applied, the armature goes into a locked rotor condition (seized) and does not rotate. As it does not rotate, the initial override timer for E02 flow condition OK times out, because there's no discharge flow, and trips out the system on fault E02.
SOLUTION: Replace the armature (with fixed impellor) or the whole pump, Model #58113 filter pump, 12Vdc, 50Hz, 50W, IPX7.
Thanks for reading and enjoy your Hydrojet Spa !
Thanks for the video. Tearing mine apart today. No water filtration, e02
Fantastic, thank you so much for this. Our impeller shaft was broken - £2.75 for new one on ebay. Saved us a fortune.
So good to here a real technician break things down. God bless my friend
Great video stripped my pump down and found a crack in the impeller plastic casing .looks the same as yours. I have ordered a new impeller kit so fingers crossed 🤞 thanks again couldnt have found this without you
Absolutely spot on in his diagnosis. Totally recommend this guy. Thankyou so much EO 2 fault... part was £13 on Amazon. Original part too.
Hi mate, understand your frustration. Lazy Spa have no technicians to send out. Cheaper for them just to send the part required. Luckily my spa was still under warranty and after many complaints to them they sent me a whole new pump unit, Value about 500 Euros.! After fixing the original pump, I have now two usable pumps. See my comments also on ‘Adam About’ u tube video on parts required as spares, posted by me about a month ago. Thanks for the video, really helpful for all us owners. 👍
If it's helpful then like, hah!
Like pressed. 👍
Gerald I actually watched your vidz a long time ago, which was very helpful. I'll revise my memory and watch again.
Thanks for your work, great but: Is the filtration pump the same as the waterjets? Got the same, but the waterjets are working.
Thanks so much! Thanks for the hint with the pond pump as well! Have you done this and how is that going for you?
Spot on mate, cheers
Hi I've only had one EO2 fault in the 2 years we've had our hawaii but the problem i have is the hydro jets not working and the pump giving a loud buzzing noise when jets are selected. Are the jets supplied by this impellor? The only way to get it working is to backwash the inlet and outlet. Which seems to free up the pump and it works. Thanks
Important to note that the pump runs off 12V AC hence the reason the 2 pin plug can go in either way. Applying a 12V DC supply will never turn the pump.
The impeller in this video is certainly faulty and does need replacing but may not be the root cause. I had an E02 fault on my pump and found it to be that the 240V AC to 12V AC transformer had blown. Ordered a unit from eBay and all was well again.
Uhm.. yeah.. ook.. transformer popped this may happen, but shouldn't.
I'm frustrated that nowhere is it labelled 12 VAC on these units, neither on the machine, in the manual, nor online!
What knocked my pump out? I suspect for years I dosed my spa with too much Chlorine. The chemical ate its way through the diddy nylon impeller and corroded the silly, built-in, "cheap-crap" electroplated steel magnet armature. This in turn physically expanded through rust formation, pressed & further cracked the nylon open until the armature impeller brushed against the motor winding casing, causing a locked rotor state.
The flow meter protects against this occurence, hence E02 fault out. Together with heat, electromagnetism and constant exposure with Chlorine it makes for a very nice scientific experiment!
Nie that I know what's required here, in case of future failure, my next step will be to replace the pump set with a durable pond pump and let fly!
The heater matrix works fine for this size unit, but in case this fails I'll simply change it out as well, override the controls and done. The essential units - for a fun time, after all - are the blower and jet pumps anyway!
@@DaveyJonesLockerwithJazzy I don't know why my transformer blew either. It was working in the morning but in the afternoon I found trip had triggered and the pump completely without power.
Luckily I have a complete spare working egg so was able to to a compare and contrast and was able to determine 12V AC output from the good one and nothing from the bad one.
I did find a bit of o ring stuck in the impeller so possibly ? this is why the transformer blew.
I also have had to change a cracked impeller armature. Everything was working at the time but the Egg was getting really noisy.
I can supply most parts for these, new and secondhand. Feel free to message me. I fully agree with the author, the impeller is the fault in the majority of lay z spa pumps. They're made cheaply and with inherent faults to cause them to fail eventually in order for you to buy new equipment. Theres a huge market now that supply parts and advice.
I disconnected the 12v lead from the pump unit when i was pulling out the impeller but the pins are not marked and the plug will connect both ways. So annoying
Great video, on that note, did it automatically go into e02 when pressing water circulation or heater button, or did pump make any noise? Mine goes right to E02 and beeping. Everything else works fine. Just looking for confirmation before I tear down and order impeller or pump. Thanks
Mine does the same. Did you find out if it was this in the end?
I have the same problem it seems ! How did you take the pump out? From beneath ? Or took the whole thing apart?
Hi.. For HYDROJET PRO ONLY... it's quite "stimulating".. remove the cover, but leave the control wiring attached, don't disconnect any wiring, except for the earth connection on cover terminal.
Inspect from the front. Lift up the discharge line - port B - .. there's a pipe with right angle fitting and what looks like a black wire coil thermocouple.
Leave that alone and twist the pipes out from each other - they are pvc joints shrunk onto o-rings .. you may need to replace o-rings if they get damaged from the removal with a tool .. it would help to use a hair-drier to heat the joints.
Once the bottom discharge pipe's removed, you can turn to removing the pipe from the pump at the bottom. Use gloves because the plastic casing edges are sharp and cut you.
Next is to remove the upper feed pipe into the pump. This is easy. Remove the upper clamps holding down the suction pipe - Port A. Very carefully remove the magnetic flow switch cover - 4 black screws - don't lose them, they disappear easily. Inspect the flap and magnet. Unplug the black switch two-wire terminal plug. Check the switch circuit with a multimeter, it should open and close when you move the magnetic flap toward the switch and away.
Inspect the pipes for debris and clear.
In similar fashion to Port B discharge, remove the o-ring sealed upper pipe into the pump.
Once clear, dry off any water and disconnect the pump wiring. The black plug terminal simply unscrews and pulls out from a black transformer distribution power unit, positioned between the air blower and jet pump assembly. The jet blower is also powered from this power unit.
Allow the pump wire harness to rest outside the casing, simultaneously unplug the in-line fuse wire circuit.
Now you can unscrew the pump from it's bracketry - you can now also inspect and/or remove the aluminium heater matrix. I recommend you clean this element matrix with limescale remover (kettle / iron cleaner) or formic acid to remove any scale or limescale - rinse & clear.
In my experience, I remove the pump from the side of the box, lift up, twist out, remove.
If you struggle to remove the inner o-ring seal discharge pipe to Port B, then pull the pump out from the bottom toward the front of the case. But remember to disconnect the pipe at the 90 degree elbow on the front because of the thermocouple wire.
To return the pump, reverse the process, use silicone lube spray to preserve the o-rings but also to make refitting easy, because it's extremely difficult to press them back in. The pipes tend to pinch the o-rings, so be careful.
Be aware that the Bestway filtration pump is 12 volt AC, It won't run off a 12 volt DC test battery. It is quite a resilient pump, not much can go wrong with it, it's well protected. The only weak point is the 1-piece magnetic rotor & plastic impeller. The plastic tends to rupture through heat and age and the steel magnet suffers corrosion.
The new replacement units are solid black plastic and far more durable. The repair kits also usually accompany VITON o-ring seals - which are great because they don't suffer from chlorine.
What I find disappointing is the replacement pump rotor is nowhere near as efficient at delivering water flow as the original. I think the impeller blades are shorter - less efficient.
I may just one day replace the pump with a stronger pond pump of similar power consumption.
Enjoy your Hydrojet Pro.
Exactly where I’m at. I have replaced the impeller and flow magnet but it will only run I’d I help the impeller to start. A new pump sounds like a good idea. Any suggestions as to which one.
On ebay.. Check the serial number to match.. it'll work
Hi .was your pump working when you selected the jets ? .mine works when I select the jets .but doesn't work when I select heat .so no water flow hence I get the dreaded 02 fault. But the pump does operate the jets 🤔
No.. the two pumps don't run simultaneously. They can't because they share the same network. One flow rate will disrupt the other and the filter pump magnetic flow switch will drop out and trip the filter pump. The only thing that can run concurrent with hydrojet water pump is the airjet blower. This means that you can't heat up the pool water whilst hydrojet massage is on.
We did everything on the video and it will run for a few mins then stops and alarms E02 again
Turns out that after backwashing failed my water pressure sensor was at fault. I checked the pump which appears fine. I disconnected the mains wire from the main board to get at the pump easier but I forgot to take a photo to show which way they went round. Is there any chance you could please link me to a photo of your main board with all the wires connected so I can see how to wire mine up without making it explode ?
Wth? Why did you disconnect anything from the circuit board?? You have no business on that circuit board, it is fully insulated from moisture / tampering so you can't break it... anyway. There are a set of plug connectors on the top edge of the board - it's a distribution rail.. there is a video which shows the wiring legend and wire colour codes... in all honesty I don't know what the title is, it was something like: "Replacing filter pump on Lazy-Spa Hawaii" - it is British.. the guy is seen working on an Air jet Hawaii, with the domed "egg" control unit. He shows the connections on the board. What you should've done, is simply disconnect the pump from it's power transformer. Which is a black square insulated box which feeds filter pump and blower. It's a simple set of plastic two-pin screw plugs. If that's what you mean, you should only have to connect this plug again for your filter pump.
@@DaveyJonesLockerwithJazzy thanks for the info. It was easier to get at pump from the bottom and on my model the power cable is looped round the bottom plastic so you can't pop it off without taking out the power lead. I broke rule 1 always photograph. :( I just hope they use the same legend on the air jets as they do on the hydro jets...
Found the vid thanks! For anyone else who forgets to photo wires before disconnecting them there are labels on the wires and they match letters moulded into the shiny grey plastic on the side of the main board case. You need to have just the right light to see them. Seriously, "the one ring "had better visibility!
It's a 12v AC motor NOT DC!
Tried everything. Error 1 won't stop buzzing. Geez.