Lennox FLEXY FC 050 Series User Manual

IOM / ROOF-TOP FLEXY™ Series - Page 77
Before Calling for AssisBefore Calling for Assis
Before Calling for AssisBefore Calling for Assis
Before Calling for Assis
tencetence
tencetence
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The unit no longer works
Cause:
- No supply voltage.
- Ruptured remote control fuses.
- Wrong connections.
Solution:
- Check the supply voltage.
- Check the fuses.
- Check and tighten the connections.
The fan rotates but the compressor does not
work
Problem:
- The air rerun conditions are not followed.
Cause:
- The control does not engage the compressor(s),
a pressure switch has tripped.
- The drive of the compressor(s) is out of action.
Solution :
- Check the control supply voltage.
- Check the connections.
- Reset the pressure switches (electrical control
only).
- Check the compressor supply voltage.
- See previous sections.
Refrigerant fluid level too low
Problem :
- Evaporator partly frozen.
- Low pressure switch cutout.
Cause:
- Refrigerant liquid leak.
Action:
- Search for leaks, repair if necessary and add
some refrigerant liquid.
The electrical heater battery is not powered
Problem :
- Variable temperatures,
Cause:
- One or more fuses are ruptured.
- The safety thermostat is open (temperature is too
high due to insufficient air flow),
Solution :
- Check the electrical supply and fuses.
- Check the ohmic values.
- Reset the safety thermostat and check the air
flow (first section)

Lennox FLEXY FC 050 Series Specifications

General

Brand	Lennox
Model	FLEXY FC 050 Series
Category	Air Conditioner
Language	English