Isotherm Replacement Overheat Thermostat for Basic and Slim Water Heaters – Reset Button 381668 (SEA00042LA)

Isotherm Overheat Thermostat for Basic and Slim Water Heaters (SEA00042LA)

Over-Temp Reset Button

Replacing / re-setting thermostat:

Warning: Be sure to turn power off first!

The thermostat equipment has an integrated working thermostat and a double overheat protection thermostat. This is manually re-settable, by pushing the pin on the top of the thermostat (See fig. 10).

Also check why the  overheat thermostat initially tripped before re-connecting the power supply.

Reset Thermostat:

• Turn off the power!
• Pull out the cable plug.
• Take off the front plastic cover (Basic and Slim 4 screws, Square 3 screws).
• Reset overheat thermostat.

Replacing thermostats:

• Pull off the cable shoes after having noticed their positions. 
• Thermostat sensor ends are put into a tube on the heater element fastening flange.
• Pull them out.
• Unscrew fastening screws for the thermostats.
• Mount new thermostats in opposite order.
• Be sure sensor ends are properly put into the tube.