Design Dynamics PFS VF-18P-MHD - Manual (Page 23)

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TRoUBlesHooTING
Continued
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 your gas supplier from a neighbor’s phone. Fol-
low the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
IMPORTANT: Operating heater where impurities in air exist may create odors. Cleaning sup-
plies, 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. These odors will
disappear over time.
POSSIBLE CAUSE
1. Battery is not installed.
Battery power is low
2. Bad module
1. Metal expanding while
heating or contracting
while cooling
1. Heater burning vapors from
paint, hair spray, glues,
cleaners, chemicals, new
carpet, etc. (See IMPOR-
TANT statement above)
2. Low fuel supply (propane/
LP only)
3. Gas leak. See Warning
statement at top of page
1. Not enough fresh air is
available
2. Low line pressure
3. ODS/pilot is partially
clogged
4. Thermostat on remote is
satisfied
1. Gas leak. See Warning
statement at top of page
2. Control valve or gas control
defective
1. Foreign matter between
control valve and burner
2. Gas leak. See Warning
statement at top of page
REMEDY
1. Replace batteries in re-
ceiver and remote control
2. Replace module
1. This is normal with most
heaters. If noise is exces-
sive, contact qualified ser-
vice person
1. Open window to venti-
late room. Stop using odor
causing products while
heater is running
2. Refill supply tank (propane/
LP only)
3. Locate and correct all leaks
(see Checking Gas Con-
nections, page 13)
1. Open window and/or door
for ventilation
2. Contact local natural or
propane/LP gas company
3. Clean ODS/pilot (see
Cleaning and Maintenance,
page 20)
4. Adjust temperature
1. Locate and correct all leaks
(see Checking Gas Con-
nections, page 13)
2. Replace control valve or
gas control
1. Take apart gas tubing and
remove foreign matter
2. Locate and correct all leaks
(see Checking Gas Con-
nections, page 13)
OBSERVED PROBLEM
Remote does not function
Heater produces a clicking/
ticking noise just after burner
is lit or shut off
Heater produces unwanted
odors
Heater shuts off in use (ODS
operates)
Gas odor even when control
knob is in OFF position
Gas odor during combustion