RTH9580WF1005/W1 User Manual

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69-2809EF—03 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).

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User Manual - Page 74