User Guide

15
800.533.7533 | Santa-Fe-Products.com Santa Fe ULTRA155/ULTRA205 Installation & Operation Instructions
SERVICE
Symptom Possible Reason Troubleshooting Procedure
CAUTION!CAUTION!
TROUBLESHOOTING SHOULD BE PERFORMED BY A QUALIFIED HVAC TECHNICIAN.
Troubleshooting
Troubleshooting Procedure for Control
Related Issues
This method of diagnosis will test the 3 main
components of the control circuit individually to
indicate any potential problems. This is to be used
when the control will not activate the main unit.
1. Detach eld control wiring connections from
the pigtails on the main unit.
2. Jumper a wire from the 24V terminal to the
FAN terminal; only the fan should run.
Disconnect when complete.
3. Jumper the 24V terminal to the DEHU
terminal; the fan and compressor should run.
Disconnect when complete.
4. If this test works, the main unit is working
correctly from a control standpoint.
5. Reconnect eld control wiring to the Terminal
block on the main unit.
6. Remove the control panel cover and detach
the eld wiring from the control connections.
7. Connect the 24V terminal and the FAN
terminal wires together; the fan only should
run. Disconnect when complete.
8. Jumper a wire from the 24V and DEHU
terminal; fan and compressor should run.
Disconnect when complete.
9. If this test works, then the eld control wiring
is ok.
10. If the problem persists, then the control is
most likely faulty.
WARNING!WARNING!
ELECTRICAL SHOCK HAZARD:
ELECTRICAL POWER MUST BE PRESENT
TO PERFORM SOME TESTS. THESE TESTS
SHOULD BE PERFORMED BY A QUALIFIED
SERVICE PERSON.
Neither fan nor
compressor
running.
Dehumidication
is being called for.
Compressor is
not running.
Dehumidication
is being called for.
Fan is running.
1. Defective compressor
run capacitor.
2. Loose connection in
compressor circuit.
3. Defective compressor
overload.
4. Defective compressor.
5. Defrost thermostat open.
Compressor
cycles on and o.
Dehumidication is
being called for.
1. Low ambient
temperature and/or
humidity causing unit
to cycle through
defrost mode.
2. Defective compressor
overload.
3. Defective compressor.
4. Defrost thermostat
defective.
5. Dirty air lter(s) or air
ow restricted.
6. Defective fan or relay.
1. Dehumidier unplugged
or no power to outlet.
2. Humidity control set
too high.
3. Loose connection in
internal or control wiring.
4. Defective compressor
relay.
5. Defective control
transformer.
6. Open circuit between
FLOAT terminals.