Honeywell PRO 1000 Series Heat Pump Thermostat Instruction Manual
PRO 1000 Series
In case of difficulty
Screen is blank.
•
•
•
•
Check circuit breaker and reset if necessary.
Ensure the heating/cooling system is powered up.
Ensure the furnace door is properly closed.
Ensure two fresh AAA alkaline batteries are correctly installed.
Temperature settings cannot be
changed.
•
•
The System switch is off.
You are setting the temperatures outside their allowable ranges:
•
•
Heat: 40 °F to 90 °F (4.5 °C to 32 °C).
Cool: 50 °F to 99 °F (10 °C to 37 °C).
Cool On or Heat On is flashing.
•
The compressor protection delay has been activated. Wait for the
delay to end (maximum of 5 minutes).
HI appears on the screen.
LO appears on the screen.
E1 appears on the screen.
E2 appears on the screen.
•
•
•
•
The ambient (measured) temperature is above 122 °F (50 °C).
The ambient (measured) temperature is below 32 °F (0 °C).
The temperature sensor circuit is opened. Replace the thermostat.
The temperature sensor circuit is shorted. Replace the thermostat.
9
| General | Details |
|---|---|
| Name | Honeywell PRO 1000 Series Heat Pump Thermostat Instruction Manual |
| Make | Honeywell |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.59 MB |

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