PORTABLE HEATING SOLUTIONS FBD28T-C, User Manual, Page: 23 / 34

23
OBSERVED PROBLEM PROBABLE CAUSE REMEDY
ODS/pilot lights but flame
goes out when control knob
is released.
1. Control knob is not fully pressed
in.
2. Control knob is not pressed in long
enough.
3. Equipment shutoff valve is not fully
open.
4. Thermocouple connection is loose.
5. Thermocouple damaged
6. Control valve damaged.
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.
Burner(s) does not light after
ODS/pilot is lit.
1. Burner orifice is clogged.
2. Burner orifice diameter is too small.
3. Inlet gas pressure is too low.
1. Burner orifice (see Care and
maintenance Page 21) or replace
burner orifice.
2. Contact Customer Service.
3. Contact your gas supplier.
Delayed ignition of
burner(s).
1. Manifold pressure is too low.
2. Burner orifice is clogged.
1. Contact your gas supplier.
2. Clean burner (see Care and
maintenance Page 21) or Contact
Customer Service.
Burner backfiring during
combustion.
1. Burner orifice is clogged or
damaged.
2. Burner is damaged.
3. Gas regulator is damaged.
1. Clean burner orifice (see C are and
maintenance Page 21) replace.
2. Contact Dealer or Customer Service.
3. Replace gas regulator.
High yellow flame during
burner combustion.
1. Not enough air.
2. Gas regulator is defective.
3. Inlet gas pressure is too low.
1. Check burner for dirt and debris. If
found, clean burner (see Care and
Maintenance Page 21).
2. Replace gas regulator.
3. Contact your gas supplier.
Gas odor during combustion.
1. Foreign matter between
control valve and burner.
2. Gas leak. (See Warning
Statement at top of page 22).
1. Take apart gas tubing and remove
foreign matter.
2. Locate and correct all leaks (see
“
Checking Gas Connections
”
, page 15).