That is for a thermistor.
The part is not a thermistor.
It is a fuse.
Since it is only 2 amps, it probably goes to a low power device like a display or remote.
Remove the display and the main board and look for any signs of damage like brown spots.
What thermistor for Aqua Rite Pro (not the non-Pro)?
- Thread starter johnnylighton
- Start date
The part is not a thermistor.
It is a fuse.
Since it is only 2 amps, it probably goes to a low power device like a display or remote.
Remove the display and the main board and look for any signs of damage like brown spots.
The fuse is labeled F3 on the board to the left of the missing thermistor boxed in green labeled R48 on the board.
The markings on the fuse show it is rated 250V 2A manufacturer is Littlefuse, you should test it for continuity to see if it is blown, but the thermistor is definitely blown.
Looks like it's MF72-050D9
https://www.digikey.com/en/products/detail/cantherm/MF72-050D9/1190943
The markings on the fuse show it is rated 250V 2A manufacturer is Littlefuse, you should test it for continuity to see if it is blown, but the thermistor is definitely blown.
Looks like it's MF72-050D9
https://www.digikey.com/en/products/detail/cantherm/MF72-050D9/1190943
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I zoomed in on a few board images until I could make out the number
Maybe the guide is wrong with the picture?
Maybe the 2 amp fuse next to the thermistor is what they meant?
I have never seen the thermistor go bad, so I suspect that there is probably a different issue as well, but it is probably worthwhile to replace the thermistor to see if it works.
Maybe the 2 amp fuse next to the thermistor is what they meant?
I have never seen the thermistor go bad, so I suspect that there is probably a different issue as well, but it is probably worthwhile to replace the thermistor to see if it works.
This seems like the part.
Most likely, the description in the troubleshooting guide is incorrect.
Inrush Current Limiter 50 Ohms ±20% 1 A 0.433" (11.00mm).
R @ 25°C. 50 Ohms
Current - Steady State Max 1 A
R @ Current 1.252 Ohms
Diameter 0.433" (11.00mm)
Lead Spacing 0.295" (7.50mm)
Most likely, the description in the troubleshooting guide is incorrect.
Inrush Current Limiter 50 Ohms ±20% 1 A 0.433" (11.00mm).
R @ 25°C. 50 Ohms
Current - Steady State Max 1 A
R @ Current 1.252 Ohms
Diameter 0.433" (11.00mm)
Lead Spacing 0.295" (7.50mm)
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Thanks very much, JamesW! I had already found this part based on your 8/31 post, and the parts are in-hand! I will update this thread when I've done (or started) my board repair attempt.
Did you ever figure out the part number mine looks similar to yours and all it says is communication error