Campo Equipment Blaze EB400G User manual

EB400G Field Assist Troubleshooting Guide
Burner control is locked-out on reset Burner control is NOT locked-out on reset
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Welcome to the Campo “Field Assist Troubleshooting Guides”.
These guides were developed to assist the working technicians in the field. We’ve supplied issues
and solutions to the most common problems encountered in the field. If you need assistance while
troubleshooting on the job, they are easy to store in your smart phone, tablet or computer.
Getting Started is easy! Just click on ‘Page #’
for the problem you are encountering
➢Contact Us…Page 30
➢Tech Tips and Bulletins for you…Page 31 +
➢Quick set-up and Installation Guides and Tools of the Trade for you…Page 33 +
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•Before resetting the burner control, ensure you have between 7-14” WC
pressure supplied to the gas valve.
•Ensure the ‘switchover valve’ is in the proper position for LP OR NG
Burner is locked out on reset
•You reset the control and it goes through the 60 second purge, but doesn’t
ignite…… Page 3
•You Reset the Burner Control. The Burner motor Does Not Start and the
Burner Control Locks-out on Reset…Page 10
•You Reset the Burner Control, but the reset light is solid red during the pre-
purge, and the control locks out on reset… Page 13
•You Reset the Burner Control and after the pre-purge, the burner fires up,
but the flame goes out after 5 to 10 seconds... PAGE 14
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You reset the control and it goes through the 60 second
purge, but doesn’t ignite…
Outlet port
•Install your manometer in the outlet port of the gas valve.
•Reset the burner control.
•After the 60 second purge, check to see if gas pressure is
coming through the valve.
•Keep a close eye on the manometer, as the pressure will only
register for 1 or 2 seconds after the 60 second pre-purge.
NOTE: If gas pressure is present… Page 4
If gas pressure is NOT present… Page 6
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If gas pressure is present…
➢Test the components... Page 5
✓Defective igniter
✓Defective ignition cable
✓Broken electrode
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HOME

Testing the Igniter
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1. Inspect the ignition electrode for cracks.
2. Inspect the ignition cable for cracks.
3. Inspect the electrode gap, ensuring the gap is 1/8”.
•With the gun still outside the burner casing, re-connect the
ignition cable to the igniter.
•Ensure the gas gun is WELL GROUNDED to the burner
housing when testing for spark.
•Reset the burner control and check for spark after the pre-
purge.
•Keep a close eye on the electrode as the spark will only
appear for 1 second AFTER the 60 second pre-purge.
Ignition Cable Electrode (Gap 1/8”)
✓No spark indicates a defective igniter
SHUT OFF the gas supply to the burner before testing!
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If gas pressure is NOT present…
✓ON/OFF switch is in the OFF position
✓Defective 24v Transformer
✓Defective Burner Control
✓Defective gas valve
➢Test the components…Page 7
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Checking the ON/OFF switch
➢Continue to… Page 8
7
•Ensure the ‘switchover valve’
is in the proper position for LP
OR NG
•Ensure the gas valve switch is
in the ON position.
HOME

Checking the 24 volt transformer
Check black and red stripe wires on 6 prong plug
For 24 volts
✓If 24 volts is NOT present, the transformer is
defective.
•If 24 volts is present… Page 9
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HOME

Checking the burner control and gas valve
Reset the Burner Control. After the 60 second purge,
check for 24 volts on the white and violet wires on the 6
prong plug.
✓If 24 volts is present, after the 60 second purge, the gas
valve is defective.
✓If 24 volts is NOT present after the 60 second purge,
the burner control is defective.
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You reset the burner control. The burner motor does not
start and the burner control locks out on reset.
✔Defective burner motor.
✔Defective Burner Control
✔Defective Motor Relay
➢Test the components…Page 11
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Light Flashing reset control
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Checking burner motor, motor relay and burner control
Reset burner control, then check for 120 volts on
burner motor relay coil.
✓If 120 volts is NOT present, defective
burner control
✓If 120 volts is present, defective burner
motor relay OR burner motor
➢Checking burner motor and motor relay…Page 12
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Checking burner motor and motor relay (continued)
Reset the burner control and check for 120
volts going to the burner motor.
✓If 120 volts is present, defective
burner motor
✓If 120 volts is NOT present, defective
burner motor relay
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HOME

You reset the burner control, but the reset light is solid red
during the purge, and the control locks out on reset
✓The air proving switch is defective
✓The air hose is cracked or busted
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➢Note: The air proven switch contact must
be open to start and close after the
burner motor starts.
HOME

You reset the burner control and after the pre-purge, the
burner fires up, but the flame goes out after 5 or 10 seconds.
✔The flame rod is defective or dirty
✔Flame rod lead wire is defective
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•Clean or replace flame rod and wire.
➢NOTE: do not use sandpaper to clean flame
rod. A cloth will be sufficient.
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•If the Burner Control is NOT locked out on Reset and will not start… Page 16
•If the Circulating Fan Fails To start… Page 23
•If the fan is starting intermittently, erratically or inconsistently…Page 24
•Circulating Fan Does Not Shut Off… Page25
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The Burner is NOT locked out on reset
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If the Burner Control is NOT locked out on Reset
and will not start…
Check for 120 volts between Terminal (L1) and
Common (L2) on the burner control.
•If 120 volts is present… Page 17
•If 120 volts is NOT present…Page 19
L1 L2
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✓Defective Bypass Switch
✓Defective Burner Control
If 120 volts is PRESENT on burner control…
➢Test the components... Page 18
Jump TR-TW
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HOME

Testing the bypass switch and burner control
To check the bypass switch, place a jumper wire
on terminals TR-TW
✓If the burner starts, the bypass switch is defective
✓If the burner does not start, the burner control
is defective
Jump TR-TW
Terminals TR-TW
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HOME

If 120 volts is NOT present on burner control between
L1 and (L2)
✓Defective Thermal Limit Disc 150⁰F
✓Defective Thermocouple
✓Defective Temperature Controller
✓Defective Fan Motor Thermostat Switch
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➢Test the temperature controller… Page 20
Thermal Limit Disc
Temperature Controller Thermostat
Switch Inside Fan
Motor
Thermostat
Switch Sealed
Inside Fan Motor
Not serviceable
Thermocouple
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Testing the temperature controller
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Check for 120 volts on the orange wire terminal #6 on the
temperature controller.
✓If 120 volts is NOT present, the temperature controller
is defective.
✓If voltage is present, the 150F thermal limit disc is
defective or the thermal heat thermostat in the fan
motor is defective… Page 21
➢NOTE: If the display on the temperature controller is
reading 000 (or other false reading), the thermocouple
Is defective.
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