Cedar Ridge RHFD400RT-M-M User Manual page 28

Problem
ODS/pilot lights but flame
goes out when control knob
is released.
Burner(s) does not light
after ODS/pilot is lit.
Delayed ignition of
burner(s).
Burner backfiring during
combustion.
High yellow flame during
burner combustion.
Gas odor during
combustion.
Possible Cause
1. Control knob is not fully
pressed in.
2. Control knob is not pressed
in long enough.
3. Equipment shut off valve
is not fully open.
4. Thermocouple connection
is loose.
5. Thermocouple damaged.
6. Control valve damaged.
1. Burner orifice is clogged.
2. Burner orifice diameter is
too small.
3. 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. Burner is damaged.
3. Gas regulator is damaged.
1. Not enough air.
2. Gas regulator is defective.
3. Inlet gas pressure is too low.
1. Foreign matter between
control valve and burner.
2. Gas leak. (See Warning
Statement at top of page
27).
28
Corrective Action
1. Press in control knob fully.
2. After ODS/pilot lights, keep
control knob pressed in 30
seconds.
3. Fully open equipment
shutoff valve.
4. Hand tighten until snug, and
then tighten ¼ turn more.
5. Replace thermocouple.
6. Contact customer service.
1. Clean Burner orifice (see Care
and Maintenance, page 25) or
contact customer service.
2. Replace burner orifice.
3. Contact your gas supplier.
1. Contact your gas supplier.
2. Clean burner (see Care and
Maintenance, page 25) or
contact customer service.
1. Clean burner orifice (see Care
and Maintenance, page 25) or
Contact customer service.
2. Contact dealer or customer
service.
3. Replace gas regulator.
1. Check burner for dirt and
debris. If found, clean burner
(see Care and Maintenance,
page 25).
2. Replace gas regulator.
3. Contact your gas supplier.
1. Take apart gas tubing and
remove foreign matter.
2. Locate and correct all leaks
(see "Checking Gas
Connections," page 16).