Troubleshooting Procedure - SantaFe ULTRA Serie Instrucciones De Instalación Y Funcionamiento

SERVICE
10
Symptom
Neither blower
nor compressor
is running and the
display is off.
Neither blower
nor compressor
is running and the
display is on.
The blower is
running and the
compressor is
cycling on and
off while ambient
humidity is high.
The blower is not
spinning humidity
is high and the
compressor is
running.
The blower is
running and the
compressor is
off while ambient
humidity is high (the
evaporator coil is
warm).
800.533.7533 | Santa-Fe-Products.com
Possible Reason
1. No power to the unit,
circuit breaker tripped
2. Power board wiring or
connector loose
3. Control board wiring or
connector loose
4. Circuit board failure
1. No call for
dehumidification.
2. Wiring or connectors loose
1. Unit is defrosting
2. Ambient temperature is
too low
3. Defrost sensor
malfunction
4. Poor airflow
5. Failing compressor relay
6. Compressor or sealed
system failure
1. Wiring or connectors loose
2. Blower relay failure
3. Blower capacitor failure
4. Blower failure
1. Wiring or connectors loose
2. Compressor relay failure
3. Compressor capacitor
failure
4. Compressor failure

Troubleshooting Procedure

• Locate circuit breaker and reset if necessary.
• Check all circuit board connections for loose
plugs or wires.
• Replace the control board and power board.
• Press down arrow until setpoint reads "00",
wait 1 minute, fan and compressor should
run.
• Check wiring and connectors for damage or
loose connections.
• Check setpoint: If the setting is "00" increase
setpoint to 55%.
• Cold ambient conditions will cause the unit
to go in and out of defrost (this is normal).
• Press and hold both arrow buttons for
>5 seconds to display the defrost sensor
temperature, replace the sensor if the
reading is in error.
• Verify airflow over the coils is not blocked
or restricted, clean filter and/or coils as
required. Replace power board.
• Note that the sealed system is not generally
field serviceable.
• Check wiring and connectors for damage or
loose connections.
• Check power to blower circuit, replace power
board if no power is detected.
• Replace blower capacitor if failed.
• Replace blower (note requires the unit be
removed from installation).
• Check wiring and connectors for damage or
loose connections.
• Check power to compressor circuit, replace
power board if no power is detected.
• Replace compressor capacitor if failed.
• Note that the sealed system is not generally
field serviceable.
Santa Fe ULTRAMD33 Installation & Operation Instructions
15