Temp probe problem prr

[jimbob]

Hi there,
Can anyone help? I have an older arctic "cub" spa that came up with a prr error code (water temp probe malfunction). I easily removed it and ordered another probe with the part number on the cable. It turns out this part number has been updated, my temp probe has 3 wires and a red connector block but this part number is now allocated to a temp probe with 2 wires and a different block. I wrote to Gecko to ask for the alternative and they said there is no alternative for my circuit board pack number and you just need to order the part number I'd already given them. But this has 2 wires and I need 3...... anyone else had this problem, surely I can't be the first? The temp probe part number is 9920-400342. If you go to any spares websites it shows a probe with 3 wires but when you order it comes with 2.. in desperation, can anyone help identify a solution...... can I just order any temp probe and splice it into my connector block?
Regards
James

[jimbob]

Temp probe connector shown above

[jimbob]

I think I've nearly solved the problem, I bought a temperature sensor off Ebay for 99p:

http://www.ebay.co.uk/itm/LM335Z-TEM...item3376aebdb3

I've connected this to the circuit board today by just pushing the legs onto the pins of the board and the PRR code disapeared and the hot tub started working. All I need to do now is wire it up and put it in the tube of the old temp sensor....99p bargain

[Stevem0030]

I think I've nearly solved the problem, I bought a temperature sensor off Ebay for 99p:

http://www.ebay.co.uk/itm/LM335Z-TEM...item3376aebdb3

I've connected this to the circuit board today by just pushing the legs onto the pins of the board and the PRR code disapeared and the hot tub started working. All I need to do now is wire it up and put it in the tube of the old temp sensor....99p bargain

Hi how do you plan on fitting that sensor into the tube can you help please as I have the same problem so just ordered 1 of the sensors from eBay, any further help would be appreciated thx

[jimbob]

Hi how do you plan on fitting that sensor into the tube can you help please as I have the same problem so just ordered 1 of the sensors from eBay, any further help would be appreciated thx

Hi Steve, before I go any further I am not a electrical engineer of any sorts but like to think of myself as a pretty good Fixer, what I'm doing is not in line with manufacturers guidelines but it is working.

As of yet I have not wired the temp sensor up to the cable and it is still sitting wedged into the circuit board, the prr code has gone , but I wouldn't reccomend this as it only reads the ambient temp under the tub as opposed to the water temp and your water will just heat up until the HL switch kicks in.

My plan is to solder the new temp sensor onto the existing cable and put into the existing metal tube. First you will need to drill out all the old potting compound and cables, then slide your new sensor into the tube with some potting compound sourced from ebay again (about £5). as you have the exisiting plug on the cable it should work...I emphasize should as I've not tried it yet but at least it got rid of the prr code. get some advice from an electrical geek before trying. I'll let you know how I get on when I try it, better to spend £6 at trying to fix it than sourcing a part for £70 that doesn't even fit!

[MaryH]

That is great news!! Thank you for update.

[MaryH]

That is a high limit sensor and they will usually slide under a plate on the heater manifold.

[Stevem0030]

Can it not be used for a temp sensor maryh? Or is there another way?

[MaryH]

Some temp and high limit sensor are the same. The high limit sensor is usually mounted on the heater monitoring the temperature of the water in heater. In most cases but not all the temp sensor is installed in the spa to monitor the temperature of water in spa. I was just trying to be clear this is the sensor on heater which is usually slides under mounting plate on heater manifold.

[Stevem0030]

But how can it be a hi limit sensor if it's giving a prr fault?