Hello,

Well I managed to get the controller out and have located the hi-limit switch that is kicking off. I was wondering why there is so much extra wire connected to the bulb that’s coiled up? And do I need to make sure that the replacement hi-limit I buy has the exact same length of wire.
Finally........can you suggest a replacement switch based upon the info I pulled off of it:

Hamilton standard model 106K
cat#351-254032
8725 stamped in white on the edge of the switch.

Thanks again for all the help,
BF

Sorry not to get back to you earlier (board notification problem). I hope by now that you've resolved your thermostat issue.

The reason for the extra long capillary tube is that these things are taken from off the shelf designs that allow for a lot of flexibility. So it's like you can move the thermostat somewhere else, as long as the capillary tube isn't kinked or put into a bind.

The thermostat will basically operate the same regardless of capillary length, so that is not an issue to consider. It just needs to meet the electrical and temperature setting requirements of the tub.

For a matching replacement, take a look at the electric heater / thermostat section of http://spapartsnet.com and if your frame mount looks like any of those there, then they should work for you.

Thanks.