Honeywell RTH9580 Wi-Fi - Page 74

72
Troubleshooting
Heat pump
issues cool air
in heat mode,
or warm air in
cool mode
• CheckyoursettingforSystemSetupscreen“Typeofchangeovervalve”to
make sure it is properly configured for your system (see page 66).
Heating or
cooling system
does not
respond
• TouchSYSTEM to set system to Heat. Make sure the temperature is set
higher than the Inside temperature.
• Touch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andcoolingsystemison.
• Makesurefurnacedoorisclosedsecurely.
• If“Wait”isdisplayed,thecompressorprotectiontimerison.Wait5minutes
for the system to restart safely, without damaging the compressor (see
page 59).
Heating system
is running in
cool mode
• CheckthatSystemSetupscreen“Yourthermostatcontrols”or“Your
system type” is set to match your heating and cooling equipment (see
“System Setup Options (MENU > System Setup)” on page 65).