L.B. White Premier Owner's Manual And Instructions page 26

26
Premier Ductable Heaters
- Ignition spark is cut off.
- Gas valve stays open.
• Room warms to desired temperature.
- Thermostat is satisfied.
- Gas control closes, burner shuts down.
• Fan motor continues to run for 1 minute, cooling the
heat chamber.
- Fan motor stops.
- Heater shuts off.
• Process starts again on a call for heat.
Fan Drive Components Troubleshooting
Refer to the following table to identify basic problems, causes and cures associated with belt drive systems.
PROBLEM
Belt Slips
Belt Breaks
Belt Jumps Pulley
Grooves
Belt Cracking
Belt Wearing Rapidly
Owner's Manual • Premier 350 2.0
IGNITION FAILURE SEQUENCE:
-- Trial for ignitions takes approximately 180 seconds.
-- If ignition module does not sense a flame within each
-- Gas valve closes.
-- Ignition spark shuts off.
-- The ignition module will pre-purge for 60 seconds
-- If ignition is not establish within the 3 ignition trials, the
-- Fan motor stops.
-- To retry for ignition, the systems must be reset:
CAUSE
Pulleys worn (Belts bottoming out in grooves)
Oil or grease on belt
Improper belt installation
Drive misaligned
Dirt entering pulley
Belt hitting belt guard
Dirt or grease on belt or aged belt
Belt hitting belt guard
Worn pulleys
Dirt in pulleys
ignition trial,
before another ignition trial.
module goes into safety lockout.
-- Turn the thermostat down and then up to call for
heat or unplug heater and plug it back in or
-- Position selector switch to off and then back to on.
CURE
Replace pulleys
Clean pulleys or belt.
Belt pried over pulleys
using sharp or pointed
tools. Install new belt
properly.
Check and realign
Remove belt, clean the
pulleys
Realign guard (check
for loose or missing
guard screws)
Remove dirt or
replace belt.
Realign guard (check
for loose or missing
guard screws)
Replace pulley
Remove dirt