Detroit Radiant Products Company DX3 Series User Manual
Page 17
17
Were the gas lines purged of air?
Is the heater properly
grounded? Is the heater’s
polarity correct?
With micrometer, check
amperage at flame rod. Is it
greater than 1.0 microamps?
Check to make sure flame
sensor wire is OK. If so,
then replace circuit board.
Sensing rod is faulty or flame
is weak. Check to make sure
heater is operating at proper
gas pressure as indicated on
burner rating plate and then, if
needed, replace sensing rod.
Correct problem.
No
Yes
Yes
No
Purge gas line.
No
4.0
Troubleshooting Guide
DX3
Series
Yes
Confirm manifold pressure is
correct and/or gas orifice is not
plugged and is the correct size.