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Attractive digital water heater display on control panel for setting and displaying the
temperature setpoint. Pressing temperature UP and DOWN buttons changes the
temperature setpoint. Same water heater display used on all models. Temperature
format may be displayed in °F or °C.
Single control board with plug in wiring controls temperature, ignition, and blower
operation.
Reduced number of parts for servicing and wiring.
Plug in wiring reduces chance of miswirng.
Burner ignition with direct spark ignition - A high voltage spark jumps from the spark rod to
the burner surface to ignite the gas. Eliminates burned out hot surface igniter
replacements.
Water heater display will show diagnostic codes in the event the water heater needs
servicing. Aids in diagnosing and servicing the water heater.
Water heater display can show previous error code history to further aid in servicing the
water heater.
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Serial Numbers including and AFTER GB13006174 and ALL EFR models
NOTICE:
THE EF100T399 MODEL SERIES DO NOT USE THE HONEYWELL
INTEGRATED CONTROL SYSTEM. THESE MODELS USE THE UT
ELECTRONICS CONTROL MODULE WITH HOT SURFACE IGNITION.
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