WaterFurnace Premier2 Owner's Manual - Status Light Descriptions
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Premier2 Owner’s Manual
• help identify any problems
• help determine if you can fix the problem
yourself and avoid a service call
• save you time and expense when you need
to call an independent WaterFurnace
dealer by helping them identify the
problem before they come out.
Status light descriptions
and service tips
Drain
When this light comes on, it indicates that the condensate drain pan within the unit has
reached the overflow level. This may be caused by foreign matter blocking the drain pan
opening. See Drain Pan under the “How do I maintain my system?” section on page 14 for
service tips.
Water Flow
A sensor protects your unit against internal freeze up caused by a water flow loss in the
heating mode. When the
WATER FLOW
light is on, this signals that internal freezing
conditions have occurred. This may be caused by a pump failure, low antifreeze level or air
pockets in the loop piping (see resetting the unit section, page 15).
Low Pressure
When this light is on it indicates a loss in refrigerant pressure in the system. This may be
caused by a refrigerant leak (see resetting the unit section, page 15). This could also be a
signal of low pressure in cooling, due to a dirty filter.
High Pressure
When this light is on it indicates high refrigerant pressure. This may be caused by a loss of
water flow in the cooling mode or low airflow in the heating mode. This could also be a signal
of high pressure in heating, due to a dirty filter.
Airflow
When this light is on it indicates an airflow problem. Contact your WaterFurnace dealer.
Status
A blinking
STATUS
light indicates that the microprocessor control, which is the “brain” of
the unit, is operating properly. If the light doesn’t flash but remains continuously on or off, the