Troubleshooting Guide - Brant Radiant Heaters DX2-20-60 User Manual

5.0

Troubleshooting Guide

5.0 Troubleshooting Guide
Turn up thermostat
Does the fan
blower turn on?
Yes
Does the switch
light energize?
Yes
Does the ignitor warm
up and glow red?
Yes
Does valve light
energize?
Yes
Does valve open?
No
Yes
Continued on page 46.
Is the power at the
No
heater 120V?
No
Find the source of the electrical
problem between panel and heater.
Is the light burnt out?
No
If so, replace.
Is the ignitor
No
physically
damaged?
Yes
Replace ignitor.
Does the burner
No
ignite at all?
Yes
Replace faulty light.
Confirm that gas pressure
is within minimum and
maximum inputs as
indicated on the burner
rating plate. Are they ok?
Yes
No
Remove obstruction.
Check voltage at ignitor during
No
ignition sequence (usually 30-
45 seconds after power to the
heater). Is it 120V?
Replace circuit board.
No
No
Yes
44
DX2 Series
Is the blower
obstructed?
Yes
Remove obstruction
and lubricate fan.
Is the inlet or the outlet of
the unit obstructed (i.e.,
ice, birds nest, dirt, etc.)?
Yes
No
The circuit board and/or wiring
harness may be faulty and
needs to be replaced.
Correct problem.
Replace gas valve.
No
No
Yes