Operating Instructions and Owner’s Manual
HeatStar MH4B Canada
5
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!
CLEANING INSTRUCTIONS:
1. Allow heater to thoroughly cool before performing
any maintenance.
2. Remove disposable 1 lb. propane cylinder from
heater.
3. Remove right side plastic service panel (ref.5) by
removing the six screws holding it in place.
4. Inspect the interior of casing for accumulation of
dust, lint or spider webs. If necessary, clean the
interior of the casing assembly with a vacuum
cleaner or compressed air (max 30 psi). Do not
damage any components within the casing assembly
when you are cleaning.
5. Inspect and clean main burner (ref. 13) and orifice
(ref. 3) by using a vacuum or compressed air (max 30
psi).
6. Inspect and clean pilot tube (ref. 14). Insert a
doubled over pipe cleaner into the pilot tube until
it bottoms against the pilot orifice (approximately
2”). Rotate the pipe cleaner a couple of times
and remove. Blow out the remaining debris using
compressed air.
WARNING:
Never use needles, wires or similar
cylindrical objects to clean the pilot to avoid
damaging the calibrated ruby that controls the gas
flow through the pilot orifice.
7. Apply compressed air (max 30 psi) into the ceramic
tile of burner assembly and venturi tube (ref. 13) to
remove dust, lint and spider webs.
8. Reinstall the right side plastic service panel.
9.
The exterior of the heater can be cleaned with a
damp cloth. Avoid the direct use of any aerosol or
spray-on cleaners. Do not use abrasive materials or
cleaners on the decals or control knob.
OFFSEASON
• If the heater is to left “OFF” for a considerable period of
time, the propane (LP) gas supply to the heater should
be turned off as close to the gas source as possible. In
the case of portable use, the gas should be turned off
at the propane (LP) gas supply cylinder.
•
If the heater is put into storage, make sure to disconnect
the propane (LP) gas cylinder.
• When the LP-gas cylinder is not disconnected from
the heater, the heater and cylinder must be located
outdoors, in a well-ventilated space, out of the reach of
children, and must not be stored in a building, garage,
or any other enclosed area.
•
Storage of the heater indoors is permissible only if the
cylinder is disconnected and removed from the heater.
Cylinders must be stored outdoors, in a well-ventilated
space, out of the reach of children, and must not be
stored in a building, garage, or any other enclosed area.
TROUBLESHOOTING INFORMATION:
If Spark electrode does not produce spark.
CHECK
• Spark electrode broken – replace.
• Igniter wire may not be attached to spark
electrode. -- attach
• Igniter wire damaged – replace.
• Piezo igniter defective – replace gas valve
assembly.
If Spark electrode produces spark but pilot does not light.
CHECK
• No gas to heater – re-install or replace gas
cylinder.
• Pilot is blocked from spider web or dirt – clean
pilot, see MAINTENANCE.
If Pilot flame does not stay lit when button is released.
CHECK
• “Pilot/Ignition” button not held long enough
to purge air from line.
• Pilot flame not surrounding thermocouple –
clean pilot, see MAINTENANCE.
• Pilot Assembly defective – replace.
•
Tip switch wires disconnected – connect
tip switch (check off switch and off switch
wiring).
If Main burner does not ignite.
CHECK
• Main burner orifice is blocked – clean burner,
see MAINTENANCE.
If Heater keeps shutting “OFF” during normal operation.
CHECK
• Pilot is blocked – clean pilot, see
MAINTENANCE.
• Provide minimum fresh air opening of 4
square inches (example 2” x 2” opening).
• Tip over switch activated from bumping
heater. Re-light
