11
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
•
ODS/pilot lights but flame goes out when control knob is released.
CAUSE
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 10).
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 10).
9. Thermocouple damaged.
9. Replace thermocouple.
10. Control Valve damaged.
10. Replace control valve.
REMEDY
SYMPTOM
•
Burner does not light after ODS/pilot is lit.
CAUSE
1. Burner orifice is clogged.
1. Clean burner orifice (see Cleaning and Maintenance on page 10), or
replace burner orifice.
2. Burner orifice diameter to small.
2. Replace burner orifice.
3. Inlet gas pressure is too low.
3. Contact local gas company.
NOTE:
All troubleshooting items are
listed in order of operation and likely
occurrence.
IMPORTANT:
Operating heater where
impurities in air exist may create odors.
Cleaning supplies, paint, paint remover,
cigarette smoke, cements and glues,
new carpet or textiles, etc., create
fumes. These fumes may mix with
combustion air and create odors and
possible discoloration of walls and
ceilings.
WARNING:
Only a qualified service
person should service and repair heater.
CAUTION:
Never use a wire needle,
or similar object to clean ODS/pilot.
This can damage ODS/pilot unit. Make
sure grille guard is in place before
running heater. If screen or grille guard
is removed for servicing it must be
replaced prior to operating the heater.
WARNING:
If you smell gas:
• Shut off gas supply
• Do not try to light any appliance
• Do not touch any electrical switch;
do not use any phone in your
building
• Immediately call you gas supplier
from a neighbor’s phone. Follow
the gas supplier’s instructions.
• If you cannot reach your gas
supplier, call the fire department.
