Toyotomi FB-38N(FS) - Manual (Page 4)

4
SAFETY FEATURES
NOTE: When a safety device is activated, the water heater is automatically extinguished. At
this time, the error code is indicated on the digital display. When your water heater
does not operate properly after you take remedies for the error correction, contact your
dealer.
1. Ignition Safety Device (Flame Sensor)
The unit will automatically stop all operations if ignition fails or if the flame fails during
combustion. “E” and “6” or “E” and “7” will flash in the display alternately.
2. Over Heat Protector
In order to prevent burns, the over heat protector automatically stops all operations if the
water in the heat exchanger reaches abnormally high temperatures due to temperature
controller malfunction. “E” and “4” will flash alternately
3. Power Failure Recovery System
If power fails during water heater operation the unit will turn off. When power resumes the
unit will automatically reignite.
4. Tip-over
Switch
When the unit senses an earthquake or shock, this device activates to stop the operation.
“E” and “5” will flash alternately.
5. Fuel
Strainer
Special strainer catches any dirt or impurities present in the fuel before it is sent to the
burner.
6. Heat Exchanger Bi-Metal Switch
If the heat exchanger temperature is raised abnormally
because of a malfunctioning thermostat, the burner is
automatically extinguished and “E” and “9” will flash
alternately. Press the POWER SWITCH again after
pressing the Reset button of the Heat exchange bi-metal
switch.
CAUTION: Disconnect the power cord before servicing
unit.
RISK OF BURN INJURY. Do not touch the
heat exchanger while in hot.
7. Thermal
Fuse
If the inside temperature of the water heater is raised abnormally, the unit is automatically
extinguished and “E” and “9” will flash alternately. If this safety device is activated,
disconnect the power cord and contact your dealer.