HVACopediaTrane · Heat pump
50 Limp mode (A1000BA)
What the display is showing
Table lists 50 under the Run status codes with no fault attached: the unit is running in reduced limp mode.
Applies to: 5TTR7 A-C / 5TWR7 heat pump multi-speed outdoor drive (AOC)
Settings for these units
Outdoor unit placement · Trane 5TWR7
| Item | Value |
|---|---|
| Above unit | 5 ft clear |
| Service side | 3 ft |
| Walls / shrubs | 12 in. min |
| Pad | 1 in. larger than unit all round, level, separate from house |
| Cold climate (HP) | raise 3-12 in. above pad |
| Within 1 mile of salt water | add BAYSEAC001 if no factory salt shield |
| Operating range | cooling 55-120 F, heating 0-66 F |
Avoid bedroom walls and under roof drip lines.
Dimensions and weights · Trane 5TWR7
| Model | H x D x W (in.) | Weight (lb) |
|---|---|---|
| 5TWR7024A | 41 x 30 x 33 | 181 |
| 5TWR7036A | 41 x 30 x 33 | 194 |
| 5TWR7048A | 41 x 34 x 37 | 231 |
| 5TWR7060A | 41 x 34 x 37 | 241 |
| 5TTR7024A | 41 x 30 x 33 | 176 |
| 5TTR7036A | 41 x 30 x 33 | 189 |
| 5TTR7048A | 41 x 34 x 37 | 226 |
| 5TTR7060A | 41 x 34 x 37 | 236 |
Weights are estimated, uncrated.
Models that show this code
4 models in Trane 5TWR7
Other codes on the same units
- 2nd digit F High drive fan IPM temperature protection (A1000AA board)
- 2nd digit P Pressure protection (high or low) (A1000AA board)
- 2nd digit b AOC jumper pin engaged (A1000AA board)
- 2nd digit d Discharge temperature sensor fault (A1000AA board)
- 60 Preheating (A1000BA)
- 70 Defrosting (A1000BA)
- d5 De-rate: drive AC input over-current
- d6 De-rate: high drive IPM temperature
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Source: Trane 5TTR7/5TWR7 installation ODR-SVN002E-EN, Table 18 A1000BA status/fault list, p.26-27. Summarized in our own words; check the original manual for your model.
For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.