Pulsa Coil 3.. poor water regulater

Hi Mike.. have a problem with my Pulsacoil 3.. the water seems to get really hot.. poor regulating.
The green lights on the front come on& the water level one stays on ..but the overheat one keep going off untill the reset button is depressed, then will stay on for 2 days before going off again.
Recently the switch blew which was replaced & now seems to be working fine.
Any idea's.
Thanks iin advance.
Flat Man

Hi Flat Man,

Yes. One or both of the thermostats in the heaters has stopped working. Fit new, dual-function thermostats and bridge out the old overheat 'stat.

You may find the old stat(s) are wet when you take them out. If so you'll need to replace the heater elements too as they are leaking as this will be the cause of the 'stat failure.

Cheers, Mike