L7 Open run circuit lockout

What the control is telling you

Active protection: run-circuit fault (07) repeated, compressor locked out. Display flashes L then 07 (or 7). Manual reset required. (The manual's L7 intro line mistakenly says 'open start circuit'.)

Applies to: (-)PRL-JEC 2-stage 16 SEER heat pumps: RPRL/UPRL-024JEC, -036JEC, -048JEC, -060JEC

Likely causes

• Damaged, wrong or miswired run capacitor
• Broken wire or loose connector in the run circuit
• Open run winding

Test and repair steps

1. Check the run capacitor for damage, wrong value or miswiring.
2. Check for broken wires, loose connectors or a miswired compressor.
3. Check compressor windings for continuity.
4. Reset the ICC after the cause is fixed press TEST for 1 second with an insulated probe (preferred), or cycle 24VAC (pull R or C) or cycle line power.

Settings for these units

Outdoor unit clearances · Rheem/Ruud PRL-JEC heat pump (Comfort Control2 ICC)

Do not reduce the 60 in. discharge or 24 in. service clearances.

Inlet clearances under 6 in. reduce capacity and efficiency.

Models that show this code

4 models in Rheem/Ruud PRL-JEC heat pump (Comfort Control2 ICC)

Other codes on the same units

• d4 Memory card invalid for device
• d8 Old shared data
• L4 Locked rotor lockout
• L6 Open start circuit lockout
• L21 Low pressure control lockout
• L29 High pressure control lockout
• Flashing c / C / h / H Anti-short-cycle (3 min) or minimum-run (30 s) timer active
• P Compressor protector trip