Alliance Laundry Systems BU170S Service Manual Page 23

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  • TROUBLESHOOTING
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70422201R1
21
Troubleshooting
8. Burner Ignites and Goes Out Repeatedly
Burner ignites
and goes out
repeatedly
Is gas pressure
insufficient?
Check gas supply
and pressure. Low
flame will not
maintain sensor
conductivity.
Are burner ports
plugged?
Check burner tubes
for build-up.
Is exhaust system or
make-up air
inadequate?
Refer to
Installation
Manual for
exhaust and
make-up air
requirements.
Is high limit or cabinet
limit thermostat
inoperative?
Test thermostat
and replace if
inoperative.
TMB1922S
Are orifices
improper?
Tumbler is equipped for type of
gas specified on serial plate. If
orifices are different from that
specified on serial plate, obtain
and install proper orifices.
Is flame recognition
circuit improper?
Replace high voltage lead.
Replace igniter.
Replace ignition control
module.
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
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