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“ER1 Out” Thermostat Reading on the Display

ER1 Out

The ER1 Out reading means that the thermostat is not set up correctly. Certainly, this is a simple fix.

Fix the Issue

Go to Menu > Settings > Advance settings > Probes > External > Select “No Function”.

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Warmup offers an extensive range of electric floor systems compatible with all floor types, rooms and projects.

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✓ Ideal as a primary heat source for whole-house heating
✓ Ideal for zones less than 250ft²
✓ Ideal for single rooms
✓ Does not alter floor levels
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✓ Ideal for residential and commercial projects
✓ Compatible with existing roofs & driveways
✓ Works with asphalt, concrete, and pavers
✓ Great for new construction

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