Maytag Amana SXV9 Series Service And Troubleshooting page 82

Troubleshooting
Error Code:
14 - High pressure error minor
Applicable Models:
Outdoor AC
Outdoor HP
Method of Error Detection:
(Cooling) OD hex mid thermistor
(Heating) ID pressure sensor
Error Decision Conditions:
When the pressure is higher than
4.2 MPa (605 PSIG)
82
Board reads
14 on the
display
Are the stop
No
valves all the
way open?
Yes
Is the outdoor
coil dirty/blocked
Yes
or installed below
the minimum
clearances?
No
Yes
Is the system
overcharge?
No
Is the
No
outdoor fan
motor
running?
Yes
Is the high
No
pressure
sensor reading
correctly?
Yes
Is the electronic Yes
expansion valve
motor faulty?
No
Is the
Yes
expansion valve
restricted?
No
Error Code - 14
Open stop valves
Clean the coil or fix the
installation conditions
Correct the charge
Check outdoor fan motor
Replace high pressure sensor
Replace the EEV motor
Replace the expansion valve
Replace the PCB