D-1000B Heater
Operations & Maintenance
7.
TROUBLESHOOTING
WARNING!
Tools, equipment, clothing and
your body must stay clear of
rotating parts and electrical
connectors.
7.1
General
This section provides a systematic approach to locating and
correcting malfunctions of the D-1000B heater.
The section is arranged according to the symptoms of the
problem. The steps have been arranged to perform the easiest
checks first and to prevent further damage when trouble shooting
a disabled unit.
Use special caution when
troubleshooting; protective covers
and safety devices may be
removed or disabled for accessing
and performing tests.
WARNING!
Be careful, serious personal
injury or death can result from
these hazards. Consult qualified
personnel with any questions.
WARNING!
The first and perhaps most important step of troubleshooting
should be gather as much information as is possible from the
person/s that may have been present when failure occurred.
Information, such as how long the unit has been operating for,
weather conditions and if any protective equipment or device
malfunctioned, can help isolate the problem.
7.2
D-1000B Heater
TROUBLESHOOTING
7-1
DHS SYSTEMS LLC
No rights are conveyed except as indicated in the legend on the inside front cover of this document.
SYMPTOM / FAULT
CAUSE
CORRECTIVE ACTION
Check power source.
Connect heater to 120V, 60Hz
grounded power supply
Check proper positioning and
functioning of power switch
No electrical power, heater not
plugged in.
Check fuse
Wrong setting of room
thermostat or other control
Check correct setting of heater
control. If using thermostat,
make sure selected temperature
is higher than room temperature
Thermostat or other control defective
Replace control device
Electrical motor defective
Electrical motor bearings defective
Replace electrical motor
Motor does not start, no ignition
Burned out condenser
Replace condenser
