[quote="wagermd"
When I recycle the power, the heater heats up quickly and becomes too hot to keep my fingers on it for more than about 5 seconds.
Do I have to drain the tub to replace the hi-limit sensor?
Finally, does anybody think it might be something else like a bad heater? I only ask because it does seem to be getting pretty hot which means the hi-limit switch is just doing its job. I hate the thought of replacing the heater...it looks like a bear to get to.
Mark |
Mark, all the hi-limit sensor does is tell the heater to shut off if the heater is getting too hot so it doesn't burn itself up...and once it does this the power light flashes.
If the tub is 220V the heater should feel warm to the touch but it should not be too hot to touch so shortly after resetting the power.
It still sounds to me that the silent-flo pump may not be pushing water through the heater fast enough.
1. Try taking the tub's filters out 1st
2. If that doesn't work there could be something in the impellar causing it to push less water
3.If it is the original pump then it is probably on it's last legs and needs to be replaced.
To replace the thermistors or the pump you can crimp-off the 3/4" lines with a few pairs of needle-nose vise grips instead of draining the tub.
Good luck!
