User Manual
26 49-7774
TROUBLESHOOTING TIPS
Troubleshooting Tips... Before you call for service
Save time and money! Review the charts on the following pages first and you may not need to call for service.
Problem Possible Cause What To Do
The air is not always cool 
or hot during operation.
The heat pump is not producing 
hot air.
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but not as hot as air produced when the higher-cost 
electric heat is used. 
The Smart Fan Auxiliary control 
may be set to continuous fan.
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continuous air movement provides better overall 
temperature control in the cool mode. See Smart Fan- 
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The air does not feel warm 
enough during heating 
operation
The heat pump alone produces air 
that feels cooler than desired.
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pump and warms with electric heat only. 
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energy consumption.
The unit is not blowing 
out air
The Smart Fan Auxiliary Controls 
may be set to cycle.
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The electric heating and 
fan features do not work
The power cord is not firmly 
attached.
Remove the room cover and make sure that the 
black connector on the end of the power cord is firmly 
engaged.
Temperature display 
flashes
The compressor may have failed. Set the operation control to OFF and then restart the 
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call for service.
The unit does not function 
after installing Remote 
Wall Thermostat
Aux Mode 6 not set properly.
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unit thermostat connector.
Unit thermostat connections are 
incorrect.
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Transformer resets or opens with 
short.
Wait 5 minutes to see if power resets.
Heat pump operates with 
electric heat only during 
heating.
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Aux Mode 8 not set properly. &KHFN$X[0RGHWREHVXUHVZLWFKLV³RII´IRUKHDW
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