13
Operating Instructions and Owner’s Manual
Mr. Heater | Unvented Natural Gas Fired Room Heater
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!
TR
OUBLESHOO
TING
SYMPTOM
SYMPTOM
•
ODS/pilot lights but flame goes out when control knob is released.
•
Burner backfiring during operation.
CAUSE
CAUSE
REMEDY
REMEDY
1. Gas supply turned off or equipment shutoff
valve closed.
1. Turn on gas supply or open equipment shutoff valve.
2. Control knob not fully pressed in while pressing
ignition button.
2. Press in control knob fully while pressing ignition button.
3. Air in gas line when installed.
3. Continue holding down control knob. Repeat ignition operation until
air is removed.
4. ODS/Pilot is clogged.
1. Clean ODS/Pilot (see “CLEANING AND MAINTENANCE” on page 11).
5. Control knob not in pilot position.
5. Turn control knob to pilot position.
6. Gas regulator setting is not correct.
6. Replace gas regulator.
7. Thermocouple connection loose at control
valve.
7. Hand tighten thermocouple nut until snug, and then tighten 1/4
turn more.
8. Pilot flame not touching thermocouple, which
allows thermocouple to cool, causing pilot
flame to go out. This problem could be caused
by one or both of the following:
a. Low gas Pressure
b. Dirty or Partially clogged ODS/pilot
a. Contact local gas company.
b. Clean ODS/pilot (see Cleaning and Maintenance, page 11).
9. Thermocouple damaged.
9. Replace thermocouple.
10. Control Valve damaged.
10. Replace control valve.
1. Burner orifice is clogged or damaged.
1. Clean burner orifice (see Cleaning and Maintenance on
page 11), or replace burner orifice.
2. Burner damaged.
2. Replace burner.
3. Gas regulator defective.
3. Replace gas regulator.
REMEDY
SYMPTOM
•
Burner plaque(s) does not glow [Infrared Only].
CAUSE
1. Plaque damaged.
1. Replace burner.
2. Control knob set between locked positions.
2. Turn control knob until it locks at desired setting.
3. Inlet gas pressure is too low.
3. Replace gas regulator.
REMEDY
SYMPTOM
•
Slight smoke or odor during initial operation.
CAUSE
1. Residues from manufacturing process.
1. Problem will stop after a few hours of operation.
