Snugger SF2300 - Error Code List and Diagnostic Chart

SF2300 Technical Manual
Page 18
Error Code List and Diagnostic Chart
Refer to the following chart after determining the error code.
Error Code
Number
of Flashes
Description of Error
Diagnostic Instructions / Corrective Action / Repair
1
High Voltage
Check Voltage Supply to Heater. Check vehicle charging
system / voltage regulator.
2
Low Voltage
Check the Power Lines going from the heater to the battery and
all the connections to make sure they are not damaged,
corroded or loose.
Check Voltage Supply to Heater. Check vehicle charging
system / voltage regulator.
3
Flame Sensor Error
Check the Flame Sensor Connections and Wires for Damage
or Short Circuit.
Check the Resistance Value of the Flame Sensor. Should be
1050 Ω to 1100 Ω at 20
o
C (68
o
F).
4
Air Inlet Temperature
Sensor Error
Check the Inlet Air Sensor Connection and Wires for Damage
or Short Circuit.
Check Resistance Value of the Air Inlet Temperature Sensor.
Should be 11 kΩ to 12 kΩ at 20
o
C (68
o
F).
5
Outlet Air / Overheat
Temperature Sensor
Error
Check the Outlet Air Sensor Connection and Wires for Damage
or Short Circuit.
Check the Resistance Value of the Outlet Air Temperature
Sensor. Should be 59 kΩ to 66 kΩ at 20
o
C (68
o
F).
6
Glow Pin Error
Check the glow pin connection and wires for damage or short
circuit.
Check the resistance value of the glow pin.
Should be 0.5 Ω to 0.8 Ω at 20
o
C (68
o
F).
7
Fuel Pump Error
Check the fuel pump connections and wires for damage or
short circuit.
Check the resistance values between the terminals of the fuel
pump. Should be 4.5 Ω ± 0.5 Ω at 20
o
C (68
o
F).
8
Blower Motor Error
Check the Blower Motor connections and wires for damage or
short circuit.
Check to see if the blower motor is turning freely and or has any
interference which may have jammed it.
Check to make sure that both the speed sensor detection
inserts on the process air fan are not missing or loose.
10
Failed Ignition
Check to make sure there is enough fuel in the tank
Check to make sure there are no fuel line leaks and
connections are all intact.
Check to make sure the air intake and the exhaust are not
crushed or plugged.