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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 815-877-5700 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 inlet pressure to a minimum of 11" W.C. with two or more appliances running
- Remove obstruction
- Re-align main burner and main burner orifice holder
- Adjust main burner air shutter approximately ¼ open
- Replace thermocouple
- Clean or replace pilot orifice
- Replace gas control
- Replace gas control and check the 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
- 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 out of 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 ¼ open
- Remove blockage
- Replace gas control0
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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 mis-aligned
Blockage in "U" tube
Poor gas supply
Exhaust grille blocked
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- Set inlet pressure to a minimum of 11" W.C. with two or more appliances running
- Adjust main burner air shutter approximately ¼ open
- Remove blockage
- Clean or replace orifice
- Re-align or replace main burner
- Remove blockage
- Replace gas supply
- Remove blockage
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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 11" W.C. with two or more appliances running
- Replace gas supply
- Replace or clean pilot orifice
- Adjust main burner air shutter approximately ¼ open
- Re-align or replace main burner
- Remove blockage
- Re-align main burner and main burner orifice holder
- 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 ¼ 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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