Maxi Comet Executive Exec-56-G, Instruction Manual, Page: 104 / 244

Troubleshooting Comet Executive Gas
6-12
WARNING
Only trained personnel with experience
in gas, electrical or mechanical repair
should troubleshoot and repair the unit.
Troubleshooting
WARNING
Read the REPAIR chapter and make
sure that the power is disconnected
before doing any repairs.
6.4 Heating System
PILOT IGNITION
ISSUE POSSIBLE CAUSE SOLUTION
TEMPERATURE Control Indi-
cator Lamp Does Not Come
On When Dial is Turned to ON
1. Switch may have a loose
connection or is bad.
• Inspect/replace the TEMPERATURE
control.
2. Indicator lamp may be bad. • Inspect/replace the lamp.
Pilot Ignition Irregular or
Absent
1. Pilot burner assembly is
dirty.
• Clean. Refer to Check and Clean Pilot
Assembly on page 4-18 .
2. Line voltage to the unit and/
or to the ignition control
may be too low.
• Line voltage to the unit must be within
+5% to -10% of the voltage on the
nameplate.
• Voltage to the ignition control may be
too low. Check the voltage at terminal It
must be 5% to -10% of 24 V.
- Check for fluctuating or incorrect in -
coming voltage. Check power require-
ments on the unit nameplate.
3. Ignition electrode wire is
loose or broken or gap is
incorrect.
• Check. Refer to Check and Clean Pilot
Assembly on page 4-18 .
4. Ignition control is not send-
ing a proper spark signal.
• Check/replace ignition control as neces-
sary.
5. Pilot gas orifice is dirty. • Clean. Refer to Check and Clean Pilot
Assembly on page 4-18 .
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