When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the TRADELINE Catalog or price sheets for complete ordering number, or specify-ġ.
Īuxiliary heating-factory-set at 3 cph (adjustable to ĬALIBRATION: Self-calibrating thermostat and thermometer to ☑° F. OPERATING AMBIENT TEMPERATURE RANGE: 40° F to 110° F. OPERATING HUMIDITY RANGE: 5 to 90 percent rela. Consult heat pump literature to determine meaning.ĬURRENT RATING: 1.6A maximum, total per stage. LED (green) on subbase lights when thermostat is calling for operation of auxiliary heat.ĬHECK LED (yellow) on subbase lights when an equipment or system problem needs to be checked. On some systems, light may indicate need to switch to EM.HT. LED (red) on subbase lights when system switch is in EM.HT. SYSTEM LED (yellow) on thermostat lights during thermostat heating and cooling ON cycles.ĮM.HT. ■ Model available with separate sensor for remote ■ Powered directly from control transformer. ■ Switching subbase with wiring terminals included. ■ Batteries included provide power to maintain clock and memory during power failures. HT., CHECK LEDs available on select models.
Carbon Monoxide Alarm SF450EN Instruction.
For more information about thermostats and other HVAC topics, download our free Home Comfort Resource guide. Our goal is to help educate our customers in Cleveland, Ohio about energy and home comfort issues (specific to HVAC systems).
If this doesn’t work, it may be time to upgrade to a programmable thermostat.įor expert help troubleshooting thermostat problems in your northeast Ohio home, contact the pros at Stack Heating & Cooling. Another possibility is an improperly calibrated anticipator. You may be able to lengthen the cycle by adjusting the anticipator lever one notch at a time toward the word “longer” on the dial. It may need to be moved if it’s exposed to heat sources, direct sunlight or drafts or installed far from the main living areas.Īn off-kilter or dirty thermostat can cause this, so troubleshoot those issues first. If these fixes don’t work, consider the thermostat’s location. Locate the arm that’s attached to a round dial and try gently pushing it either direction to get it unstuck. If you have a mechanical thermostat, a frozen anticipator is another potential culprit. To fix it, place a carpenter’s level just above the device and make adjustments until it’s level again. A jarring bump can throw a non-digital thermostat off level and cause setting and temperature discrepancies too. Thermostat Setting and Room Temperature Don’t Matchĭirty thermostat components can cause this issue, so clean the inside as per the above instructions first. If the wiring looks corroded, consider replacing the thermostat. Then look for issues like loose wiring or terminal screws and tighten them up. If it looks dirty inside, use canned air or a soft artist brush to clean away accumulated grime that may be affecting its functionality. If the thermostat is still unresponsive, make sure the breaker is shut off and remove the cover. Try replacing the batteries, then check for a blown fuse or tripped breaker in the electrical panel. If the thermostat’s display is dark, a lack of power may be the issue.
Here’s how to investigate three common thermostat problems. Learning some basic thermostat troubleshooting methods may save you the cost of having an HVAC technician make the diagnosis. Thermostat malfunctions can make you think something is seriously wrong with your HVAC system.