Troubleshooting - Newmac NMRK-1 Manual

Power Supply Error
E0
If plugged in while the switch is in the "ON" position.
Photocell (Flame Sensor) Error
Oil Shortage
Bad Photocell (Flame Sensor)
Incomplete Combustion
E1
Contamination of Fuel Filter
Ignition Failure"
Temperature sensor (Thermistor) Error
E2
Bad Connection or mis-operation of Sensor
Anti-overheating Sensor (Thermostat) Error / Tip-over Switch Error
E3
Unusual internal overheating
Product inclined or overturned
LO Below 1 °F
HI Over 99 °F
OH It stops when the temperature reaches to 140 °F
CN Continuously operating without set-temperature
Blinking Error during operation

Troubleshooting

Possible Cause
-8-
Corrective Action
Unplug and turn the switch to "OFF"
position. Plug in and turn switch to "ON"
Check the fuel tank (Fill the fuel if needed)
Check and clean or replace Photocell
Using Designated Fuel
Clean or replace Fuel Filter
Check Wire Connection
Check Spark Plug For Normal Firing (clean
or replace if needed)
Check Wire Connection
Replace Sensor"
Restart After Cooling
Restart on flat surface
Normal
Normal
Restart After Cooling
Normal
Check Error Code
Re-operating after reset