Friedrich MRM09Y1J Service & Parts Manual

103 PB
TROUBLESHOOTING
Diagnosis of overload and discharge malfunction
Is electric expansion valve well connected? Is it damaged?
Is refrigerant leaked?
Is overload wire connection normal?
Are resistances between the rst four pins close to the terminal hole and the 5th pin almost the same.? They should be less
than 100 ohm.
N
N
N
Y
Y
Y
Y
N
20min after
de-energization
of complete unit
expansion valve
Is electric
Is overload wire
well connected?
expansion valve
reliably connected?
Replace electric
Remove
Replace parts
malfunction?
electric box
of outdoor
Refrigerant leakage,
recharge the
Remove malfunction?
Adjust
refrigerant
Finish
connecting wire

Friedrich MRM09Y1J Specifications

General

Brand	Friedrich
Model	MRM09Y1J
Category	Air Conditioner
Language	English