1103UDSA-2--EN, Pag. 33/36
25. Trouble-
The integrated control relay monitors the operation of the heater. If the heater fails
to operate properly, review the fl ow chart below and see the operating sequence
in section 16.
The general troubleshooting charts on the following pages will also help you to
determine the problem.
Control relay
Troubleshooting fl owchart
24. Flue and
combustion
air piping
Check the complete system at least once a year. Inspection should include all joints,
seams, concentric adapters and the fl ue terminal cap. Replace any defective or
heavily corroded parts.
shooting
YES
YES
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