Overheat Protector Switch (High Limit Switch) - Toyotomi NS-2800 Service Manual

1-26. Overheat Protector Switch (High Limit Switch)

This switch is rated at 90°C (195°F). Should the heater overheat (internal temperature
rises beyond 90°C (195°F)), the overheat protector switch (also called a high limit
switch) will open to shut off the heater. The power lamp will simultaneously flash. The
overheat protector switch will automatically reset after the heater has cooled down.
Once the heater has cooled to 70°C (160°F), the system can be restarted manually as
follows.
1. Push in the HEAT switch to "OFF" position.
2. Allow heater to cool down.
3. Resolve the cause of the overheat.
4. Push in the HEAT switch to "ON" position.
The heater will continue operation again.
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