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Pilot
Guides are only intended for use on Atwood™ products by service technicians who have successfully completed
Atwood™ training. This guide should be used in conjunction with the appropriate Instruction Manual provided
with the product and any applicable Industry Standards. This is not intended to be a complete list. Please
direct questions concerning service of Atwood™ products to 866-869-3118 option 5 before proceeding or
service@atwoodmobile.com
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PILOT OUTAGE
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CONDITION
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SOLUTION
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Gas pressure incorrect
Blocked “U” tube
Improper main burner alignment
Improper air adjustment
Weak thermocouple
Poor pilot flame
Weak gas control magnet
Defective E.C.O. in control
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- Set pressure to a minimum of 11½ W.C. with two or more appliances running
- Remove obstruction
- Re-align main burner and main burner orifice holder and gas valve
- Adjust main burner air shutter approximately 1/4 open
- Replace thermocouple
- Clean or replace pilot orifice
- Replace gas control
- Replace gas control and check the pilot flame. It should be high enough to engulf the thermocouple at all times.
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PILOT OUTAGE WHEN BUTTON OR KNOB IS RELEASED
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CONDITION
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SOLUTION
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Thermocouple not hot
Thermocouple loose
Weak thermocouple
Weak gas control magnet
Defective E.C.O. in control
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- Hold button or knob for 30 seconds before releasing
- Tighten connection at gas control
- Replace thermocouple
- Replace gas control
- Replace gas control
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MAIN BURNER WILL NOT IGNITE
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CONDITION
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SOLUTION
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Blocked main burner orifice
Main burner flame spreader mis-alignment
Blocked main burner
Improper air adjustment
Blocked “U” tube
Gas control out of calibration
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- Clean or replace orifice
- Square flame spreader to end of main burner
- Remove blockage
- Adjust main burner air shutter approximately 1/4 open
- Remove blockage
- Replace gas control
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ERRATIC MAIN BURNER FLAME
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CONDITION
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SOLUTION
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Improper gas pressure
Improper air adjustment
Partial blockage of main burner
Partial blockage of main burner orifice
Flame spreader misaligned
Blockage in “U” tube
Poor gas supply
Exhaust grille blocked
Improper main burner alignment
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- Set inlet pressure to a minimum of 11½ W.C. with two or more appliances running
- Adjust main burner air shutter approximately 1/4 open
- Remove blockage
- Clean or replace orifice
- Re-align spreader or replace main burner
- Remove blockage
- Replace gas supply
- Remove blockage
- Re-align main burner, main burner orifice holder and gas valve
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SMOKING AND SOOTING
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CONDITION
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SOLUTION
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Gas pressure incorrect
Poor gas supply
Improper pilot flame
Improper air adjustment
Flame spreader mis-aligned
Blocked main burner
Improper main burner alignment
Blocked “U” tube
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- Set pressure to a minimum of 11½ W.C. with two or more appliances running
- Replace gas supply
- Clean or replace pilot orifice
- Adjust main burner air shutter approximately 1/4 open
- Re-align or replace main burner
- Remove blockage
- Re-align main burner, main burner orifice holder and gas valve
- Remove blockage
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INSUFFICIENT WATER TEMPERATURE
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CONDITION
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SOLUTION
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Temperature selector out of place
Bypass levers improperly positioned
Improper air adjustment
Partial main burner blockage
Improper main burner adjustment
Flame spreader mis-aligned
Blocked “U” tube
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- Re-set to desired position
- Reposition levers
- Adjust main burner air shutter approximately 1/4 way open
- Remove blockage
- Re-align main burner and main burner orifice holder
- Re-align or replace main burner
- Remove blockage
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* not covered under warranty
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