Honeywell YRTH7500D1009 Quick Installation Guide - Page 27
Heating or cool, ing system does, not respond, Wait appears, on the screen, Heat pump is, sues cool
UPC - 085267257244
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SETUP WIRING Troubleshooting RTH7400/RTH7500 Series Heating or cooling system does not respond Press SYSTEM to set system to Heat. Make sure the temperature is set higher than the Inside temperature. Press SYSTEM to set system to Cool. Make sure the temperature is set lower than the Inside temperature. Check circuit breaker and reset if necessary. Make sure power switch at heating & cooling system is on. Make sure furnace door is closed securely. Wait 5 minutes for the system to "Wait" appears on the screen Heat pump issues cool air in heat mode, or warm air in cool mode Compressor protection feature is engaged. Wait 5 minutes for the system to restart safely, without damage to the compressor. Check Function 0190: Heat Pump Changeover Valve to make sure it is properly configured for your system (see page 17). ASSISTANCE TROUBLESHOOTING 25 69-2487ES-01