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Troubleshooting Guides
Honeywell RTHL3550D Troubleshooting
Tools
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- Wire Strippers
- Spudger
- Coin
- Level
- Drill with Drill Bits
- Clamp or Clothes Pin or Vise Grips
Background and Identification
The Honeywell RTHL3550D Non-Programmable Thermostat is easy to use with a large, backlit digital display and push-button operation. Features include:
- Large backlit digital display
- Display options — degree Celsius or Fahrenheit temperature
- Easy-access battery replacement
- Set point retained in memory (in the event of power outage)