SUNWIND 420128 Instruction Manual page 59

stop after approx. 30 minutes of
initial operation
Thick black smoke
Heater produces a whistling
minimum installation
and air passageways for debris.
Heater produces a clicking noise
common with heaters. If noise is
just after burner is lit or turned off.
excessive, contact a qualified person.
Gas odor even when control knob Gas leaks
correct leaks immediately.
is in OFF position
PROBLEM
Gas odor during combustion
passageway and burner
burner ports
Heater burning vapors from paint,
impurities in air.
Gas leakage from:
your gas supplier.
-Valve and pipes connection.
processes.
Blockage in burner injector
Air passageways blocked.
clearances
Air in the gas line.
Metal expanding and
Gas control defective
PROBABLE CAUSE
Foreign matter in gas or on
-Regulator and hose connection.
operation.
burner
and outside.
noise when burner
Operate burner until the
air is completely
purged.
contracting, respectively.
Replace gas control
SOLUTION
Locate and correct leaks,
Turn off
the heater
and let it
cool.
Remove
blockage
and clean
inside
Check
is lit.
This is
Locate and
Check gas
or
contact
59