Troubleshooting – Desa RH10PT User Manual
Page 15
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110373-01E
15
OBSERVED PROBLEM
Burner does not light after ODS/
pilot is lit
Delayed ignition of burner
Burner backfiring during com-
bustion
Yellow flame during burner
combustion
Slight smoke or odor during initial
operation
Heater produces a whistling noise
when burner is lit
Heater produces a clicking/tick-
ing noise just after burner is lit
or shut off
REMEDY
1. Clean burner (see Cleaning
and Maintenance, page 13)
or replace burner orifice
2. Contact local propane/LP gas
company
1. Contact local propane/LP gas
company
2. Clean burner (see Cleaning
and Maintenance, page 13)
or replace burner orifice
1. Clean burner (see Cleaning
and Maintenance, page 13)
or replace burner orifice
2. Contact local propane/LP gas
company
3. Replace burner
4. Replace gas regulator
1. Check burner for dirt and
debris. If found, clean burner
(see Cleaning and Mainte-
nance, page 13)
2. Contact local propane/LP gas
company
3. Replace gas regulator
1. Problem will stop after a few
hours of operation
1. Turn control knob to lowest
position and let warm up for
a minute
2. Operate burner until air is
removed from line. Have gas
line checked by local propane/
LP gas company
3. Observe minimum installation
clearances (see Figure 2, page 6)
4. Clean burner (see Cleaning
and Maintenance, page 13)
or replace burner orifice
1. This is common with most heat-
ers. If noise is excessive, contact
qualified service person
POSSIBLE CAUSE
1. Burner orifice is clogged
2. Inlet gas pressure is too low
1. Manifold pressure is too low
2. Burner orifice is clogged
1. Burner orifice is clogged or
damaged
2. Inlet gas pressure is too low
3. Burner damaged
4. Gas regulator defective
1. Not enough air
2. Inlet gas pressure is too low
3. Gas regulator defective
1. Residues from manufacturing
processes
1. Turning control knob to high-
est position when burner is
cold
2. Air in gas line
3. Air passageways on heater
blocked
4. Dirty or partially clogged
burner orifice
1. Metal expanding while heating
or contracting while cooling
TROUBLESHOOTING
Continued