Raypak Crosswind Heat Pump Diagnostic Guide
Crosswind SpecsManual-backed specifications and service notes
Crosswind V SpecsManual-backed specifications and service notes
Want a guided diagnosis? Open the Raypak Heat Pump Troubleshooter.
Raypak Crosswind Heat Pump Diagnostic Guide
Crosswind and Crosswind V use different controls and different display vocabularies. Identify the exact model before interpreting a code. The two tables below intentionally stay separate.
Safety: Disconnect electrical power and follow the manual before opening equipment. Gas, combustion, line-voltage, pressurized-water, and refrigerant work belongs to qualified service personnel.
Original Crosswind E, P, and F codes
| Display or symptom | What it means | Manual-backed check |
|---|---|---|
| E3 | No-water protection. | Restore water flow; check pump, filter, valves, and baskets. |
| E5 | Supply power is outside the operating range. | Verify line voltage and the dedicated circuit. |
| E6 | Excessive inlet-to-outlet temperature difference from insufficient flow. | Increase flow and clear restrictions. |
| Eb / Ed | Ambient-temperature protection or anti-freezing reminder. | Verify ambient conditions; Ed is a freeze-protection reminder. |
| E1 / E2 | High-pressure or low-pressure protection. | Check water flow and airflow first; pressure/refrigerant diagnosis requires qualified service. |
| E7 / E8 / EA | Water-outlet, exhaust-temperature, or cooling-mode evaporator protection. | Shut down and have temperature, flow, airflow, and refrigerant conditions checked. |
| P0 | Controller communication failure. | Check communication connections and controls. |
| P1–P9 | A named water, exhaust, coil, ambient, cooling-plate, or current sensor failed. | Use the manual table to identify the exact sensor, then inspect its wiring and connection. |
| PA | Restart-memory failure. | Cycle power once; call service if it returns. |
| F1–F8 / FA / Fb | Compressor-drive, PFC, start/run, current, or inverter thermal protection. | Record the exact code and call qualified inverter/refrigeration service. |
| F9 | Fan-motor failure. | Check for obstruction and call qualified service for motor or drive diagnosis. |
Crosswind V message text
| Display or symptom | What it means | Manual-backed check |
|---|---|---|
| In Sensor Fault | Inlet sensors disagree or low flow affects the reading. | Check flow, pump speed, and inlet sensors. |
| In/Out/Amb/Coil Sensor Open or Short | The named sensor circuit is open or shorted. | Inspect the named sensor wires and terminals. |
| Flow Sensor Fail | The flow reading is out of range. | Check flow-sensor settings, wiring, and actual flow. |
| Hi Press Trip / Lo Press Trip | A refrigerant pressure switch tripped. | Check water flow for high pressure; refrigerant diagnosis requires qualified service. |
| Hi Press Lockout / Lo Press Lockout | Repeated pressure trips produced a lockout. | Correct flow or refrigerant causes before clearing the fault. |
| Brownout | The 24 V transformer signal is low. | Check the configured 208/230 V brownout mode, incoming voltage, and transformer output. |
| Water PS Open | The water-pressure switch is open. | Check pump operation and water flow. |
| Hi Delta-T | Inlet-to-outlet temperature difference is too high. | Check pump operation and water flow. |
| Heating Fail / Cooling Fail | Outlet temperature did not move in the expected direction. | Check compressor operation for heating or the reversing valve for cooling. |
| Defrost Lockout | Defrost was not effective. | Confirm ambient conditions and have airflow/refrigerant operation checked. |
| No Communication with Heat Pump | The main-board/keypad harness is damaged or disconnected. | Inspect, reconnect, or replace the harness. |
Running but not heating
| Display or symptom | What it means | Manual-backed check |
|---|---|---|
| Basic performance check | A working unit should normally discharge air about 8–10°F cooler than incoming air in heating mode. | Check water flow, filter, valves, airflow, runtime, setpoint, and the three-minute compressor delay before calling service. |
| Apparent leak | Operating heat pumps can produce substantial condensation. | Turn the heat pump off while leaving the filter pump on. If dripping stops and the water contains no chlorine, it is condensation rather than a pool-water leak. |
Source and model boundary
Source: Raypak Crosswind and Crosswind V Installation and Operation Manuals, Troubleshooting and Error Messages sections. This guide summarizes only the listed model family. Confirm the model number and use the current manufacturer manual before service.