Detroit Radiant Products Company HLV Series User Manual
Page 48
48
HLV
Series
5.0
Maintenance • Troubleshooting Guide
Does the burner
stay on?
Does the burner stay on for
approximately 15 seconds
and then shut off?
Does the burner come on
and turn off immediately
(1 or 2 seconds)?
Does the heater
stay ON until a call
for heat ends?
Troubleshooting ends.
The heater can shut down due to:
• Improper grounding.
• High winds.
• Taking combustion air from the attic.
• Dirty environment.
• Improperly positioned baffles (if applicable).
• Fluctuating gas pressure.
• Reduction of negative pressure as the system heats up (reset dampers).
No
Yes
No
Yes
Continued from page 46
Is the heater properly grounded?
Is the polarity correct?
Correct problem.
No
Yes
Check to confirm gas pressure
is within minimum and maximum
inputs as indicated on the heater’s
rating plate. Is gas pressure OK?
No
Yes
Yes
Remove restriction in the
exhaust or replace the faulty
pressure switch.
No
Yes
Does the burner
light?
Is the ball valve in
the ON position?
No
Check to confirm gas pressure
is within minimum and maximum
inputs as indicated on the heater’s
rating plate. Is gas pressure OK?
Yes
Correct problem.
Yes
No
Correct problem.
No
Purge gas lines of air.
Yes
No