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TempstarPDS4 packaged gas/electric unit

Code 1 Flash · Packaged rooftop gas/electric unit · easy

A barber shop's rooftop unit keeps 'half-heating': warm air for a few minutes, then cool air while the fan keeps blowing. The IGC board's LED is flashing once, over and over.

Based on

Tempstar error-code database — 1 Flash (limit switch fault)Tempstar PDD4/PDS4 series installation & operation manual