Dantherm Classic 20 CS020020A, Руководство по эксплуатации товара, Страница: 13 / 16

Classic 20 ACU Installation, Operating & Maintenance Manual
AC-2 CS020020 USACG-6 Manual Rev B Page 13 of 16
6.7 Troubleshooting
The air conditioners are designed for trouble free life as long as the ambient filter (if applicable) is maintained
in a clean condition. To aid in service definition the service personnel can initially identify probable cause by
referring to the following trouble shooting chart.
If in doubt contact Dantherm Air Handling Inc. for assistance. Always have the Model #, Serial #
available before you call.
Problem Potential Cause Solution
Unit not running No Power Check power source and electrical
connections
Fuse Blown on Control Board Replace with fuse
Faulty control components Carry out self test
Unit not cooling
sufficiently Filter (if applicable) clogged Clean or replace filter
Blocked evaporator or
condenser coil Clean coil
Evaporator or condenser
blower not operating Replace motor, capacitor or entire
assembly
Loss of refrigerant or oil leaks Locate and repair leak. Replace
charge
Insufficient capacity Contact Dantherm Air Handling, Inc.
Ice on evaporator coil Insufficient heat load or unit
oversized for application Contact Dantherm Air Handling, Inc.
Failed evaporator blower Replace evaporator blower motor or
assembly
Condensate draining
continuously Enclosure not properly sealed Check and seal all openings
Excessive vibration Loose compressor, fans or
tubing Locate and correct
Missing Compressor
Current (F=01) Wire detached or improperly
installed Secure wiring or install wiring
properly according to diagram
Broken current sensor Replace Control Board
Faulty compressor Replace compressor
High Pressure Alarm
(F=02)
Faulty condenser fan or wiring
loose Replace fan or check wiring to fan
Faulty condenser fan capacitor
or wiring loose Replace capacitor or check wiring
to capacitor
Faulty condenser fan switch or
high pressure switch Replace appropriate switch
Low Pressure Alarm after
start (F=03) Slow leak in system Locate and repair leak. Replace
charge
Low Pressure Alarm
before start (F=04) No refrigerant in system
(Large leak) Locate and repair leak. Replace
charge
Low charge in system Locate and repair leak. Replace
charge
High Temperature Alarm
(F=05) Unit undersized for application Contact Dantherm Air Handling, Inc.
Low Temperature Alarm
(F=06) Insufficient heat load or unit
oversized for application Contact Dantherm Air Handling, Inc.
Faulty Temperature
Sensor (F=07) Sensor not connected Reconnect sensor
Faulty sensor Replace sensor