A. O. Smith · Voltex AL Smart / Signature 900 Standard (HPTS, HPS10)
A. O. Smith Voltex AL Smart / Signature 900 Standard (HPTS, HPS10) error code CLR
Error code cleared
info
What it means
Shown when an error code is temporarily cleared from the display.
What A. O. Smith says to do
To temporarily clear an error code from the control assembly display, press the Up and Down Temperature buttons at the same time until the display shows "CLR."
Last checked 2026-10-03.
Safety first
- WARNING! Working near an energized circuit can result in severe injury or death from electrical shock. (p.28)
- WARNING! When you are finished, be sure all covers are secured to reduce the risk of fire and electric shock. (p.28)
From the manufacturer's manual for this series.
The same code on other models
Codes mean different things on different heaters. Match the series to the model number on your rating label.
- A. O. Smith Voltex MAX / Signature 900 Premium (HPTA, HPA10): CLR
- A. O. Smith Voltex 120V plug-in (HPTV, HPV10): CLR
Other Voltex AL Smart / Signature 900 Standard (HPTS, HPS10) codes
- 001 (Dry-fire)
- 003 (Upper thermistor sensor failure)
- 004 (Lower thermistor sensor failure)
- 006 (Internal Processor Error)
- 009 (Power supply voltage too low)
- 021 (Upper element circuit failure)
- 022 (Lower element circuit failure)
- 025 (Heat pump coil temperature sensor)
- 026 (Heat pump suction temperature sensor)
- 027 (Heat pump discharge temperature sensor)
- 028 (Ambient temperature sensor failure)
- 031 (Water leak)
- 044 (SAC anode depleted)
- 046 (Shut-off valve)
- 048 (Battery low energy)
- 080 (Air filter dirty)
- 081 (Condensate management)
- 083 (Compressor suction pressure too low)
- 084 (Compressor not functioning)
- 085 (Compressor discharge temperature too high)
- 086 (Fan speed feedback)
- HPO (Heat pump out of operating range)
- ICE (Heat pump defrost)