Marvair SP-SC Air.pdf - Marlow-Hunter, LLC

SeaMach Reverse Cycle Air Conditioners
Alarm Screens – MachAir OLED only
PROBLEM/SYMPTOM LIKELY CAUSE(S) CORRECTION
Low Voltage 1. Insufficient power to unit. 1. Check power supply to the unit.
Int. Air Sensor
1. The internal air sensor in the
display is defective.
1. Replace display. Contact Marvair or your
local SeaMach representative.
Sensor OPT
LPS (low refrigerant
pressure) in cooling
mode or HPS (high
refrigerant pressure) in
heating mode
LPS (low refrigerant
pressure) in heating
mode or HPS (high
refrigerant pressure) in
cooling mode
Coil Sensor
1. The optional remote sensor is
not connected.
2. Internal sensor was selected
in the programming mode, but
a remote sensor is not
installed.
3. Remote sensor is not properly
connected.
4. Remote sensor is defective.
1. Blocked or severely restricted
air flow.
2. Improper refrigerant charge
1. Inadequate water flow
2. Defective pump
1. Frost sensor not properly
installed.
2. Defective frost sensor
1. Install the remote sensor.
2. Change OPT to INT in the air sensor SET
UP.
3. Connect remote sensor properly.
4. Replace sensor. Contact Marvair or your
local SeaMach representative.
1. Clean filter, open any closed grilles and
checked for kinks in duct work.
2. Contact Marvair or your local SeaMach
representative.
1. Check strainer. Clean if necessary. Check
for kinked water lines. Make sure the pump
is primed.
2. Replace pump
1. Properly attach the frost sensor.
2. Replace the frost sensor.
SeaMach Owner’s Manual 5/05 Page 18 of 24