AccuTemp Evolution Service Manual page 15

REF
POSSIBLE CAUSE
LETTER
Bad component voltages.
D
Error Code: -1F or -99F for
Temperature (RTD) Probe.
EC: -1F = Open Temp (RTD)
EC: -99F = Shorted Temp
(RTD)
E
Low Water Sensor Not
Satisfied
Water Level Board
F
SP8026-1909
TROUBLESHOOTING STEPS
Check the wiring to the component; including wire-
to-connectors, GND's, and damage.
If a component output is bad, then it may need re-
placed.
Inspect connection between RTD wires at J3-1 & 2
on control board. Any loose connections should be
repaired/recrimped.
Detach RTD wires from control board at J3-1 & 2.
Ohm across wires while steamer is at room temp.
RTD is a 1000 ohm sensor (see Fig.PG). If RTD ohms
correctly replace control board, otherwise, replace
RTD.
Water Sensors are steel studs circled by white teflon
and are located inside cooking chamber on left hand
wall towards unit front.
Water sensors must be kept thoroughly clean. This
should always be the first step with any water alarm.
On a manual fill unit - ensure unit has been filled
with water
An LED light on D3 will flash based on water level.
Single second intervals indicate the water level
board does not sense water
A three second interval indicated the water level
board is satisfied with the water level to allow for
heating.
If water board has three second interval and low
water light is illuminated, remove pink wire at J9 on
the water board. If the low water light goes out -
replace water board.
If light remains - call AccuTemp for assistance at
800-480-0415
EVOLUTION ELECTRIC STEAMER
15