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Douglas ScottSep 9, 2025
Why Enviro CFR Touch terminals heater does not operate?
- TTara CrawfordSep 9, 2025
If the heater in your Enviro Touch terminals does not operate, consider these potential causes: * No Power: Check the disconnect. * No Control Voltage: Check the transformer and transformer fusing (if applicable) and replace if necessary. * Blown Fuse: Replace the fuse. * Open Limit (primary or secondary): Replace the limits or reset as applicable. * Airflow Incorrect Direction: Check the sensing tube, red tube = high and black tube = low, rotate if needed. * Low External Static Pressure: Increase airflow to obtain a minimum of .1 in. w.c. external static. * Damaged elements: Check for open or damaged elements and replace as necessary.