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Error Codes When an error has occurred, a red LED on the operation panel turns on and an error code is displayed on the LED display. The panel does not truervnertot ttohethdeisdpislapylasyleselepepmmodoedewhwilheile the error code is shown. Figure 14 Error Code example Figure 14 Error Code example After a component is replaced or the inspection is completed, turn the breaker oOnF/oFffor a psevrieordalotfim3 emsintoutceosnbfiermfortehereesrtraorrtidnogetso ncotnrfier-mocthcuere. rror does not re-occur. Below is the list of the error codes. If the corrective action does not solve the error problem, Baemloawlfuisncthtieonlisotfothf ethPeCeBrrovraclvoedeissh. iIgf hthlyelcikoerlrye.ctive action does not solve the error pErrorborlem, a malfuncEtirornorocfotnhtenPtsCB is highly likely. code Corrective action Corrective action Error Error contents HP ambient (outdoor) temperature H9 codethermistor error E001 HP water outlet over temperature 1 - Check the heat pump piping for blockage/debris HC HP water outlet(outgoing) temperature thermistor error - Check the thermistor connectors on the main J3 J5 kinking HP discharge temperature thermistor error HP suction temperature thermistor error - Check for any piping bend, blockage or PCB or control PCB in the heat pump unit for any disconnect, fall-off, wire breakage or short - Check pipes are not frozen E002 HP water outlet over temperature 2 - Ensure mains water supply is available circuit. - Measure resistance of the thermistor indicated - Ensure all shut off valves are open J6 J8 E6 E007 - If the water circulation pump is not working, replace the pump - In areas with hard water ensure Gas Cooler is not scaled up, descale if necessary HP defrost temperature thermistor error HP water inlet(return) temperature thermistor error Compressor booting error High pressure side error by the error code. E003 E004 H7 E005 E006 HP outlet temperature thermistor detection error HP discharge over temperature 1 Tank temperature thermistor error HP discharge over temperature 2 HP discharge temperature Thermistor detection error - Check if the thermistor is out of the - Check the thermistor cable on the terminal mounting pocket on the water outlet pipe block in the heat pump unit for any disconnect, - Replace the discharge temp thermistor fall-off, wire breakage or short circuit. - Reconnect the expansion valve PCB - Measure resistance of the thermistor indicated connector, check to ensure connection by the error code. - Replace the expansion valve (together with PCB), or the entire heat pump unit - Check the compressor connector. - Check the heat pump piping for any - Replace the main PCB or heat pump. blockage - Check for any piping bend, blockage or kink - Check if the pipes are frozen - Ensure mains water supply is available - Ensure all shut off valves are open - If the water circulation pump is not Sanden Heat Pump – Installation Manual SANCO2 Heat Pump – Installation Manual Page 1248 of 4302 Page 26 of 44PDF Image | SANCO2 Heat Pump Water Heater R744
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