Page 36
Modulating Unitary Range
VA-LT206_11292016al
TROUBLESHOOTING
Troubleshooting Chart
If problems persist contact your Advanced Radiant Systems Representative.
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
NO
NO
NO
NO
NO
Check Air Lines To Switch
Check Burner System
For Obstruction
Check for blocked
orifice adaptor, if OK
Replace Valve
Rectify As Required
Rectify As Required
Check For 24V At Switch
Rectify Switch Or
Wiring As Required
Rectify As Required
Is Valve In On
Position?
Replace Ignition
Control Module
Is Pressure Switch
Operating?
Unplug Power
Does Motor/Impeller Spin Freely?
Verify Sense Electrode
Verify Ground
Verify Wiring
Check Electrode Gap
Set to 1/8"
Does 24V Occur At Valve
During Ignition Trial? Check
Wiring and Rectify As required
Replace Motor If Required
Check 120V Power
Verify at Motor
Is There A Flame
Signal To Module?
Min. 0.8 Micro Amps
Is Gas Present At Valve?
Is Gas Pressure Sufficient?
Check Ignition Wire
Replace If Damaged
Stays
Burner
Check Voltage at
Speed Control
Lit?
Burner
Lights?
Does
Electrode
Spark?
Blower
Turn Up
Starts?
TROUBLESHOOTING CHART
Thermostat
YES
Replace Module if
no power to Motor
Is Thermostat
Working?
YES
NO
Replace
NO
YES
NO
Replace Speed Control
Содержание VA Range
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