Breadcrumb Home/ Interplay Learning - Heat Pump Troubleshooting (Residential)/ Heat Pump Troubleshooting (Residential) Heat Pump Troubleshooting (Residential) Duration 8 hours 0 minutes Language English Heat pumps are more popular than ever and this course will familiarize you with the most common service problems including bad reversing valves, emergency heat relays and motor diagnostics. Back to Course Title Interplay Learning - Heat Pump Troubleshooting (Residential)