Intermatic T171 Timer Els PW 17895 which often indicates the furnace

which often indicates the furnace pressure switch failed to close or stayed open during the inducer startup cycle

Engineered for a 5 SCFM airflow rating

Formulated as a 5-minute time delay relay

This part is the direct engineering successor and authorized replacement for legacy part numbers 0150M00036S and B1368048

Common Questions: How do I troubleshoot a pressure switch error on a Reznor heater

Intermatic T171 Timer Els PW 17895 which often indicates the furnaceThe Intermatic T171 is a heavy duty 24 hour mechanical time switch engineered for contractors who require precise, reliable control over electrical loads up to 40 Amps per pole. This SPST (Single Pole Single Throw) timer is specifically designed for 125V applications where a "skip a day" feature is critical for energy management and operational efficiency. The integrated Skip a Day function, facilitated by three provided skipper screws, allows you to