User Guide

6
Service & Troubleshooting
Burner (control) will not come on
No power to control
• Check line voltage to the control (at least 102 vac).
• Check all electrical connections.
Control is in lockout
• Press the reset button for 1 second.
Other no start problems
• Line voltage <90 VAC. Check line voltage. >132VAC
• Motor relay welded. If valve/ignitor has no voltage, and line voltage
OK, the issue is a welded motor relay. Replace the control.
• Reversed 120 VAC polarity – make sure hot and neutral lines are not
reversed on incoming lines.
• Check T-T, BV, CO and HV limit inputs.
Repeated ame failures
Check for:
• Excessive airow or draft causing ame to leave burner head-
check for proper air band setting and draft.
• Excessive back pressure causing ame to be erratic – check
appliance and ue for sooting/plugging.
• Defective ame rod assembly.
Control locks out at end of TFI
Check for:
• No gas to burner – check gas supply.
Verify gas pressure is no higher than allowed for gas valve
(usually 1/2 psig or 14" water column).
• Shorted electrodes (shorted to burner head or diffuser) – in-
spect for cracked porcelain and replace as needed.
• Poor spark – check electrode spacing and condition per burner
manual. Replace or realign if necessary.
• Airow too high – check air band setting.
• Ignitor module defective – replace if no spark.
• Check wiring connections.
• Flame rod shorted to ground or defective.
FROZEN PIPES/WATER DAMAGE
This is not a freeze protection device. Suitable freeze protection monitoring or other precautions are recommended to protect against
ruptured pipes/water damage caused by fuel outage, safety related fault conditions or equipment failure.
MN60200FR1 041715© Copyright 2015 — Carlin Combustion Technology, Inc.
TECH SUPPORT HOTLINE [phone]
Carlin Combustion Technology, Inc.
126 Bailey Road North Haven, CT 06473 Phone [phone] Fax [phone]
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