Preventative Maintenance Schedule; How Often; Troubleshooting - Desa B155DST Manual De Propietario

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preVenTaTiVe MainTenance ScHedule

WARNING: Never service heater while it is plugged in, operating,
or hot. Severe burns and electrical shock can occur.
Item
Fuel tank
Air output and lint filters
Air intake filter
Fuel filter
Spark Ignitor
Fan blades
Motor
WARNING: Never service heater while it is plugged in, operating,
or hot. Severe burns and electrical shock can occur.
FAULT CONDITION
Motor does not start after
heater is plugged in
8

How Often

Flush every 150-200 hours of opera-
tion or as needed
Replace every 500 hours of operation
or once a year
Wash and dry with soap and water
every 500 hours of operation or as
needed
Clean twice a heating season or
as needed
Clean and regap every 500 hours of
operation or replace as needed
Clean every season or as needed
Not required, permanently lubri-
cated

TrOuBleSHOOTing

POSSIBLE CAUSE
1. No power to heater
2. ON/OFF switch not in the
ON(|) position
3. Thermostat setting is too
low
4. Bad electrical connection
between motor and ignition
control assembly or igni-
tion control assembly and
power cord
5. Binding pump rotor
6. Defective ignition control
assembly
7. Defective motor
8. Blown fuse or ignitor control
assembly
www.desatech.com
How To
See Storing, Transporting, or
Shipping, page 7
See Air Output, Air Intake, and
Lint Filters, page 10
See Air Output, Air Intake, and
Lint Filters, page 10
See Fuel Filter, page 11
See Spark Ignitor, page 12
See Fan, page 10
REMEDY
1. Check circuit breaker in
2. Verify ON/OFF switch is in
3. Turn thermostat knob to a
WARNING: High voltage!
4. Check all electrical connec-
5. If fan does not turn freely,
6 Replace ignition control
7. Replace motor
8. See Ignition Control As-
electrical panel
the ON (|) position and light
is on
higher setting
tions. See Wiring Diagram,
page 15
see Pump Rotor, page 13
assembly
sembly, page 14
122358-01A

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