E07
Pentair · Pentair UltraTemp Heat Pump Pool Heater
The compressor motor has failed to start, has locked up, or is drawing excessive current triggering motor protection. Causes include a seized compressor (bearing failure), a failed compressor contactor, electrical supply issues, or a motor winding failure. Compressor replacement on a pool heat pump is a major repair (typically $1500-3000+ installed). In many cases, replacing the entire heat pump is more cost-effective if the unit is more than 7-10 years old.
Error E07 on the Pentair Pentair UltraTemp Heat Pump Pool Heater means: Compressor Fault. The top-ranked community fix is “Test and Replace Compressor Contactor or Compressor” (hard difficulty, ~180 min, DIY cost: $0-$50). 2 community-ranked fixes available below.
Published February 2026 · 2 fixes · pool heater
Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.
While many pool heater repairs can be done safely at home, consider hiring a qualified technician if:
Average professional repair cost for this issue: $1500-$3000.
The Pentair Pentair UltraTemp Heat Pump Pool Heater has 8 other known error codes:
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