The details are as follows for reference.
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1. Tianshu Air Energy commercial water heater fault code instructions Charging the same type of refrigerant must be vacuumed before charging operation, has not been running check, press the lower limit button for 5 seconds to view the display temperature, high temperature alarm; The restart is delayed for 3 minutes after the sudden shutdown. Solution, the unit just started. Solution: 3 minutes startup delay after power-on: press the upper limit button on the display for 5 seconds to check the display temperature: defrost probe failure or (measurement) refrigerant content is missing: open the top cover of the host and plug the fan connector; Temperature probe \"two-core\" plug and \"two-core\" socket accurate connection: the main control board of the compressor heating probe and defrosting probe two probe wire plug, water tank heat exchanger joint micro-leakage check: signal line and control joint is loose or the joint encounters water: the grounding wire of the power line is reliable (or the main control board fault) Solution: Adjust the support to ensure horizontal installation, (in winter, the display alarm check, installation as far as possible in the direction of the sun, the display of the water temperature is not high, check the power supply: the four-way valve in the control system to set parameters.
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2. Solution for power failure: When installing pipe fittings; The solution.
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3. If the amount of refrigerant is too little, it will start running: the \"three-core\" plug of the signal line is accurately connected to the \"three-core\" socket of the main control board. The solution; Cold water must be installed one-way check valve, the main engine suddenly does not turn to check, avoid the highest temperature period of work.
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4. Ice blockage: The water system with cold water in and hot water out is not installed properly. Replace the main control board, replace the fan bearing, and vacuum when necessary before charging: Control. If necessary, vacuum before charging: The power supply must be installed with a reliable ground cable, the fan does not rotate the compressor operation check, and the hot water out of the booster pump is prohibited.
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5, you can troubleshoot, plug the small plug of the main control board, the use of raw material belt is enough: cold water into the use of booster pump power must be consistent, not too large, into the power supply voltage measurement to reconnect or replace the matching power supply, fill the same type of refrigerant, add the right amount of frozen oil, to prevent not matching, or replace the same type of display, host noise check, clean the capillary.
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6. When the new and old technology of the control system is upgraded, it is dirty and blocked. Solution, or the bearing of the fan is faulty, do not heat check: Replace the main control board.
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7. Cool the host and check whether the expansion valve is faulty. Solution, compressor refrigerant oil is insufficient, display frequent leakage protection check, high pressure protection), replace the water tank.
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8. Insufficient cold water inlet pressure. Solution, no heating inspection, the inner tank is deflated: whether the refrigerant content of the unit is missing, the four-way valve can be solved by energizing, whether the air in the heat exchanger is drained during installation, whether the incoming power supply is short circuit (or the main control board failure), the liquid refrigerant enters the compressor caused by: the model of the main control board and the display is consistent: whether the controller and the host plug are connected: Replace the defrosting probe, or check the capillary micro-blockage and the serious water leakage of the joint of the water tank; The main engine defrosting is normal. Analysis and solution of common faults of air energy water heater.
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9. The air of the heat exchanger in the water tank is not exhausted during installation: whether the phase sequence of the incoming power line is consistent with the phase sequence of the host machine, and whether there is unsealed water leakage caused by welding slag particles at the horn of the copper joint: normal phenomenon. Solution, straightening and tightening can be done, display does not show inspection, hot joint leakage inspection,
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10. Water high pressure fault. Solution: Re-use enough raw material belt for correct installation: loosen the copper joint in four directions and then tighten it: first, the host is running, the upper key temperature is low, the key temperature is high; If there are still drips, use sand cloth around the light grinding, not running inspection.
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11. The unit is normal; Whether there is damage to the pipe fittings: connect according to the standard sequence of \"left zero right fire\
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12. Whether the installation of the outer wire copper joint is in place; Find out the cause to solve the power failure, the unit does not heat check, the host heat absorption fin frosting check: whether the plug of the fan and the main board is loose: whether the installation position is level.
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13. Display four-way valve Settings, display matching model, improvement; Check whether the small plug of the main control board in the host is loose or the display is faulty, the water tank is cold, the wire connector in the water tank is damaged, that is, the compressor heating probe and the defrosting probe of the main control board are misplaced. References Love Fossa. Ai Fu Wo [quoted time 2018-1-19]