Table of Contents
Advertisement
Smart Touch Cabin Control Installation & Operations Manual
PROBLEM
"FIL" (Filter
Filter needs cleaning or replacement.
Reminder) is
flashing
"HPF" (High
1. High-pressure switch is open (in
Pressure Fault) is
displayed.
2. High-pressure switch open (in
"LAC" (Low AC
1. Supply voltage is too low.
Voltage) is
2. Voltage is improperly calibrated.
displayed.
"LPF" (Low
1. Low-pressure switch is open due to
Pressure Fault) is
displayed.
2. Low pressure switch is open due to
"PLF" (Low Pump
1. Condenser coil is too hot.
Flow) is displayed.
2. Thermistor is damaged.
3. Damaged jack/socket on circuit
L-3380 ENGLISH
POSSIBLE REASONS
cooling) due to improper seawater
flow.
heating) due to improper airflow.
low seawater and/or low return air
temperatures.
loss of refrigerant.
board.
SOLUTIONS
Clean or replace filter, and reset "Filter Hours Reset".
1. Strainer or intake may be plugged. Seacock may be closed.
Check seawater hose for kinks or collapses. Verify pump
operation; check pump circuit breaker if applicable.
2. Remove obstructions in return air stream. Clean air filter and
grille. Check for crushed or restricted ducting. Ducting must be
as straight, smooth and taut as possible.
If problem persists, reprogram Low Fan Speed Limit for
maximum value. Set Low Fan Limit to 75, and set the reverse
fan speeds during Heating Mode by changing the Reverses
Fan Speed in Heat under General Settings or manually set fan
speed to high.
1. Verify power to unit with multimeter.
2. Verify that Voltage Calibration under General Settings matches
voltage reading to unit with a multimeter. Adjust Voltage
Calibration if necessary.
1. Try restarting the air conditioning unit. The optional low
pressure switch has a 10 minute shutdown time delay that may
be in effect.
2. Check air conditioning unit for refrigerant oil leakage; call
service technician.
1. Verify that unit is getting water flow and that condenser is not
fouled.
2. Unplug water sensor if installed. Try another if it is available.
3. Visually check to see that pins inside socket are not bent or
corroded. Repair or replace circuit board if needed.
TROUBLESHOOTING
35
Advertisement
Table of Contents
