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Servicing should only be performed by a Qualied Service Technician
HIGH LIMIT SWITCH/ DIGITAL THERMOSTAT
The digital thermostat contains the high limit (energy cut out) switch. The high limit switch interrupts burner
gas flow should the water temperature reach 203°F (95°C).
In the event of high limit switch operation, the water heater cannot be restarted unless the water temperature
is reduced to approximately 120°F (49°C). The manual reset button on the front of the control then needs to
be depressed.
Continued manual resetting of high limit control, preceded by higher than usual water temperature is evidence
of high limit switch operation.
Contact your dealer or qualified service technician if continued high limit switch operation occurs.
Temperature
Adjustment
Dial
Display
LED Label
Display LED's
To Lower (E4)
Temperature
Probe
Fuse
To 120V
supply
(E2)
Manual
Reset
To Upper (E3)Temperature Probe