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Heat pump Trouble Shooting Chart

Symptoms

Heat pump not

functioning

Heat pump running

but has low cooling

Fuses or circuit breaker

Temperature Control

Flow Switch

Pressure Cutout Switch

Compressor

Check / Solution

1. OK > Temperature Control.

2. No power > Replace fuses

1. OK > Pressure cutout switch

2. No display > Replace control

3. Check settings.

4. Error code > (see page 6)

1. Pool water flow.

2. Water flow OK > Wiring > Replace flow switch.

1. Check condenser entering water flow and water

temperature.

2. Check for low refrigerant pressure > Check Refrigerant

level.

3. Liquid gauge high pressure > Check water to condenser.

4. No water through condenser> Check water regulating

valve.

5. Reset pressure switch.

*Not running > Check start components > Replace compressor.

1. Clean heat exchanger and or condenser.

2. * Check compressor.

3. * Check refrigerate running pressure levels.

4. Check tank system requirements. Call Aqua Logic for

help.