Detroit Radiant Products Company HLV Series - Manual (Page 49)

49
HLV Series 5.0 Maintenance • Troubleshooting Guide
This model has a flame rod sensor
located next to the hot surface ignitor.
With an amp meter, check the
amperage at the flame rod.
Is it greater than 7 amps?
Yes
Confirm the flame sensor wire is
OK and then replace circuit board.
The sensing rod is faulty or the flame
is weak. Confirm that the heater is
operating at proper gas pressures as
indicated on the heater’s rating label.
Replace sensing rod if necessary.
No