MW_F11
INVERTER COMMUNICATION ERROR Cause Communication error between Main PCB and Power PCB Solution Check the harness connection. DETAILS BELOW:
MW_F5
DAMPER SWITCH ERROR Cause Main PCB doesn’t see the Damper motor move when called for. The issue could be the Damper motor or the switch. Solution Check Damper motor connections and Switch connections. DETAILS BELOW:
MW_F4
HUMIDITY SENSOR OPEN OR SHORTED Cause Shorted or Open thermistor is detected. Solution Check Main PCB connections and thermistor connections. DETAILS BELOW:
MW_F3
KEY PAD ERROR Cause When the error code F-3 shows but you can not use any button, the Main PCB doesn’t receive any touch signal. Solution Check the connections between the door harness and PCB assembly, reseat. You may need to replace keypad PCB. DETAILS BELOW: Touch Pad Issues No input. Some keys wont work. Random […]
MW_F2
PCB THERMISTOR OPEN (Convection Models) Cause The PCB Thermistor is open. Solution Check the thermistor resistance. DETAILS BELOW:
MW_F1
PCB THERMISTOR SHORTED (On Convection Models) Cause The PCB Thermistor is Shorted, this could also indicate a bad Main PCB. Solution Check the thermistor resistance and voltage from Main PCB. DETAILS BELOW: Thermistor Shorted Example from Model LMV201 If Thermistor is shorted you will read less than 1 ohm Thermistor Shorted Example from Model LMV201 If […]
MW_F13
INVERTER OVER CURRENT ERROR Cause Overcurrent error on inverter Solution Check the harness connection, Fan motor status. DETAILS BELOW:
MW_F14
INVERTER OVER VOLTAGE ERROR Cause Over Voltage error on inverter Solution Check the harness connections, Fan motor status. DETAILS BELOW:
MW_F15
INVERTER UNDER VOLTAGE ERROR Cause Under Voltage error on inverter Solution Check the harness connections, Fan motor status. DETAILS BELOW:
MW_F16
INVERTER HEAT SINK ERROR Cause Overheating condition on Inverter. Solution Insure the Inverter PCB and support assemblies are mounted correctly. DETAILS BELOW:
