SantaFe ULTRA Serie Instrucciones De Instalación Y Funcionamiento página 16

SERVICE
10
Symptom
Poor
dehumidification
performance and
evaporator coil is
covered in ice or
frost.
Poor
dehumidification
performance,
compressor is
running and
evaporator coil is
not cooling.
A leak or standing
water in the drain
pan.
16
Santa Fe ULTRAMD33 Installation & Operation Instructions
Possible Reason
1. Defrost sensor or
connection is defective
2. Poor airflow
3. Low refrigerant charge
1. Failed compressor or low
compressor
1. Kink in the drain line
2. Drain line clogged
3. Clog in small vinyl tubing
that connects the drain
pan to the drain port
Troubleshooting Procedure
• Check circuit board connection for loose plug
or wires.
• Press and hold both arrow buttons for
>5 seconds to display the defrost sensor
temperature, replace the sensor if the
reading is an error. See diagnostic - Error
code "1"
• Verify airflow over the coils is not blocked
or restricted, clean filter and/or coils as
required.
• Note that sealed system is not generally field
serviceable
• See diagnostic - Error code "3"
• See diagnostic - Error code "3"
• Note that the sealed system is not generally
field serviceable.
• Verify there are no kinks in the drain line.
• Verify there are no clogs in the drain line. If
clogged pour a mixture of household vinegar
(diluted 1:3) with water directly into the front
edge of the drain pan.
• Verify no clogs in the small vinyl tubing that
connects the drain pan to the drain port by
pouring a small amount of water into the
front edge of the drain pan to make sure it
flows through the drain port. If water does
not come through verify MD33 is plumb and
not leaning forward or out of level.
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