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WARNING
Do not use a solvent-based cleaner to clean coils, as some solvents
will produce a noxious odor when the unit is in operation.
13.
Inspect and clean the drain pan and drain line(s). The use of an
anti-fungicide tablet to keep the condensate system free from
bacterial contaminants is recommended.
Troubleshooting
The troubleshooting procedures below should only be conducted by a qualified technician.
Symptom
No heat or cooling
The thermostat calls for cooling, but cool air
is not coming out of the unit.
The thermostat calls for heat, but no heat
comes out of the unit.
The thermostat calls for heat while in heat
pump mode, but heated air is not coming
out of the unit.
The Right Fit for Comfort
• Installation, Operation, and Maintenance Manual •
Maintenance & Troubleshooting
WARNING
Suggestion
•
Check to see if the unit has power and if the thermostat is satisfied. If the thermostat is not
satisfied, call your installing contractor or service contractor.
•
Check for continuity between the thermostat and the unit. Also make sure 24 Vac is present
across terminals C and R.
•
Ensure the water is flowing through the water coil. Locate the high pressure switch reset
button and push button.
•
Some units are equipped with an
Make sure this line cord is reset by pressing the reset button at the line cord plug.
•
Note: If the indoor fan is operational and all of the above suggested procedures have been
followed, and there is still no cooling being supplied by the unit, then contact a trained
heating and cooling professional.
•
Check to see if the unit has power or if the thermostat has been satisfied. If the unit has
power and the thermostat is satisfied, set the thermostat a above room temperature.
•
Units equipped with electric heaters have a temperature limit switch to prevent the electric
heater from reaching unsafe temperatures. If after calling for heating the heater is not ener-
gized, check for continuity across the limit. If the limit is open, replace with an equivalent
limit switch. Auto reset / Manual reset Switch.
•
If the unit is equipped with a LCDI Line Cord, Ensure it is not tripped. (See
information.)
•
While in heat pump mode, make sure the thermostat is not energizing the
RetroAire units are designed to work in heat pump mode when 24Vac is present across Y
and C.
•
Check to see if the unit has power or if the thermostat has been satisfied. If the unit has
power and the thermostat is satisfied, set the thermostat a above room temperature.
20
Water Source Console Units
(continued)
14.
Ensure the unit is level. Over time the building and equipment
may settle, causing a shift in the direction of the condensate
flow.
15.
Replace the access panels and reconnect the electrical power.
16.
Test the unit operation.
LCDI (Leakage Current Detection Interrupt) line cord.
Page 8 for
O terminal.
P/N 240008071, Rev. B [112309]
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Table of Contents
Troubleshooting
