[Asia Pump Network News] boiler water cycle pump in the process of using, there will be different failures. Only a variety of fault phenomena analysis and judgment, in order to remedy the problem to eliminate the fault, Xiaobian hereby inventory of the boiler water heater failure causes and solutions to everyone, take a look at it! Wall-mounted boiler hot water circulating pump (Asia Fluid Network) hot water circulating pump fault phenomenon hot water circulating pump fault reasons hot water circulating pump fault solution pump does not turn around, the controller alarm, the display shows the fault code is under pressure. a) The pipe is short of water, the pressure gauge shows the pipe is under water pressure. b) pressure switch failure. c) There is a lot of air in the piping system. a) Pipeline lack of water to replenish water; if the pipeline leaks, think of ways to plugging treatment. b) Check with a multimeter. If the pressure switch is not connected, replace the pressure switch. If the contact is poor, re-plug it. If the line is broken, replace the wire. If the wrong terminal is inserted, press the correct connector. c) Exhaust the piping system. Pump is not running, the fan does not run, the controller alarm, the display shows the fault code for the pipeline water shortage. a) pump power cord off b) because the pump do not lock for a long time. a) Use a multimeter to check the output power of the pump is normal, the contact is good. If the controller is not voltage output is the controller failure, replace the controller; if the controller has voltage output, the pump power is the connector off, poor contact or the wire is disconnected; off to re-contact, poor contact to make contact Good, the wire is disconnected to change the wire. b) If there is a voltage input pump, and the pump does not turn, it may lock the pump, unscrew the flathead screw on the pump, use a screwdriver to tighten the pump shaft so that the pump rotor can rotate back to normal; if the pump does not Lock with a multimeter to detect the pump open circuit or short circuit, then the pump burned, replace the pump. Pump running, the fan is not running, the controller alarm, the display shows the lack of fault code for the pipeline a) pump air is not exhausted lead to pump idle. b) The heating system distributor is not open or the filter is clogged. c) There is no air exhausted inside the pipe. d) Flow switch failure. e) pressure differential pressure generated by the pipeline is not enough. a) Unscrew the end of the pump port a word copper screws, drain the pump air, restart. b) If the distributor of the heating system is not open, turn on the distributor; if the filter is clogged, remove the filter, rinse it out, replenish it, and restart it. c) there is no exhaust air in the pipeline exhaust all exhaust air to restart. d) flow switch failure to use a multimeter to detect whether there is a switch in the operation of the output signal. If there is a signal output that is connected to the water flow switch may not plug the connector or the wire is disconnected, then plug the connector or replace the wire; if the wire and plug are intact, then the controller failure, replace the controller . If there is no signal output, the water flow switch is stuck or the waterway is blocked; if the water flow switch is stuck, the water flow switch is removed and rinsed back, and the water is replenished. Exhaust and then restart; water blocked by b method. e) In the heating outlet fitted with a distributor (switch), turn off a little distributor can. Fan does not run or slow operation, the controller alarm, the display shows the fan pressure fault code a) fan stuck or burned; b) bad connector c) controller failure d) capacitor damage e) . a) Check the fan with a multimeter, disconnect the fan and change the fan. b) poor contact with the connector to re-plug good. c) Controller failure Replace the controller. d) You can manually pull the fan impeller to start the capacitor is damaged, replace the capacitor. e) install a voltage regulator, increase the mains voltage so that it is 220V. Fan is running normally, the controller does not fire, the main controller alarm, the display shows the fault code for the fan wind pressure fault a) wind pressure switch short circuit b) wind pressure switch is not closed. c) poor contact with the connector. d) Suction exhaust port blocked. e) Controller failure. a) Check with a multimeter, if the air pressure switch is closed and connected before the fan is started, replace the power or adjust the air pressure switch. b) If the fan is normal before starting and does not close after the fan is started, the air pressure switch can be adjusted, and if the adjustment still does not solve the problem, replace the air pressure switch. ; Another check whether the venturi or air pressure tube plug. c) If the connector is not in good contact, re-plug it in. d) If the faults in the front are excluded, check if the exhaust air is smoothed or clogged; if the exhaust air is not smoothed, clean the flue and clean it if clogged. e) a, b, c, d have been ruled out the fault, then check whether the pulse ignition connector is in good contact, the main controller whether there is 4.5V voltage output. If there is poor contact, then the connection is good; if there is a 4.5V output, replace the pulse igniter; if there is no 4.5V output, replace the main controller. Pulse ignition normal ignition, but the point is not on fire, the main controller alarm, the display shows the ignition failure fault code a) ignition pin insulation porcelain broken or loose metal pin spark ignition spark weak. b) abnormal supply of gas valve power, resulting in a solenoid valve can not open. c) proportional valve ignition current adjustment is not reasonable. d) Sub-valve small gas flow adjustment is not reasonable. e) There is a foreign object in the valve of the gas valve to make it start poorly. f) Defective proportional rubber tympanic membrane. g) Solenoid coil is damaged (short circuit or open circuit). h) gas pressure is too high or too low. i) Two-speed fan high and low speed line back. j) Ignition needle related parameters are incorrect. a) Change the ignition pin. b) Replace the master. c) Adjust a reasonable proportional valve ignition current. d) Adjust the reasonable small gas flow of the staging valve. e) Remove foreign matter from the gas valve. f) Replace the gas valve. g) Replace the solenoid valve. h) Adjust the gas pressure to the rated pressure. i) Correct connection of the two speed fan's high and low speed lines. j) adjust the needle spacing is too large or too small is adjusted to 3 ~ 4mm; ignition needle in the direction of a serious bias to adjust or replace the ignition needle, the ignition needle and the burner is too far away from the adjustment is reasonable. Ignition after ignition, the main alarm, the display shows the accidental flame failure code a) flame sensor needle carbon. b) Flame sensor cable connection is poor. c) suction, exhaust vents blocked or flue into the air port does not extend the wall outside. d) Too much wind outside. e) Abnormal gas pressure supplied, too high or too low. f) Controller failure. g) flame induction needle does not touch the flame. h) The flue is not installed. i) The intake and exhaust pipe into the public flue. j) Grounding wire is disconnected or open. a) Clean up the flame induction needle carbon deposition. b) Flame sensor pin connection is good. c) Clean suction, exhaust port, so that suction, exhaust smooth. d) Change the position or direction of suction and exhaust. e) Adjust the gas pressure to the rated supply pressure. f) Replace the controller. g) Adjust the flame sensor to a position where it can contact the flame during a large or small fire. It is best to flame the inner flame and outer flame junction. h) It is forbidden to connect the intake and exhaust flue to the public flue and to move it outdoors. i) If the smoke pipe is removed, the smoke pipe is not properly connected and the smoke pipe is connected again. Boiler off, alarm on main controller, fault display shows overheating and dry-burning fault codes a) heating splitter is shut down, causing water temperature in main heat exchanger to rise sharply, hot water temperature over 90 ℃, causing bypass valve to open . b) blockage of heating pipes, slow down water circulation, rapid rise of water temperature, hot water temperature over 90 ℃. c) overheat protection thermostat is not good, should be normally closed but not normally closed. d) Three-way valve flow switching disorders (three-way valve), there may be dislocation of the connector or the ball assembly misalignment and poor rotation of the ball, resulting in heating, hot water by the three-way valve into the board in exchange for a small cycle , The water temperature rose sharply. e) Controller failure. f) Distributor (switch) installed in the opposite direction. g) clogged filter. a) Turn on the heating distributor. b) clear the heating pipe. c) Replace the overheat protection thermostat. d) Correct the connecting wire when the wire is misaligned; reassemble the three-way valve ball correctly when the ball assembly is misaligned; and replace the three-way valve if the ball is not rotated properly. e) Replace the controller. f) Reassemble dispenser (switch) so that it is oriented correctly. g) Clean the filter. Fire boiler flameout, the master alarm, the display shows the heating or hot water sensor fault code a) temperature sensor short circuit. b) The temperature sensor is open. a) If the insulation in the line is broken and shorted, replace the wire; if the temperature sensor is damaged, replace the temperature sensor; if the controller is damaged, replace the controller. b) If the connection in the line is broken or the connection is faulty, replace and re-connect the conductor. Replace the temperature sensor if the temperature sensor is damaged. If the controller fails, replace the main controller. Although the normal operation of the open fireplace, but the tank overflow a) automatic fill valve stuck debris and blocked tap water, tap water into the heating water and overflowing. b) plate heat exchanger internal leakage caused by overflow. c) heating system is too large and expansion tank unmatched and overflowing. a) If foreign matter is attached to the auto-fill valve rubber diaphragm resulting in poor sealing to clear foreign matter; fill valve is not strict, replace the automatic valve. b) Replace the plate heat exchanger. c) Install check valve on heating pipe or replace open tank with large capacity. Pressure gauge pressure is rising, long-term drip valve relief valve a) manual valve itself due to failure to plug tap water, so that tap water into the heating system. b) Leakage within the plate heat exchanger or water leakage within the integrated system. a) Clear the manual fill valve seal rubber or replace the seal rubber. b) Replace the plate heat exchanger or the entire waterway integrated system. Boiler soon reached the set temperature, but the radiator is not hot, the ambient temperature does not rise a) heating system has a lot of air is not exhausted. b) The heating system is clogged, resulting in slow water circulation. c) There are many dispensers that open only a little and the flow of water is slow. d) heating system is too large, the pump power is not enough. e) Damage to pump impeller. f) Controller output pump voltage is abnormal. g) The pump power gear adjustment unreasonable. h) Bypass valve is not reset. a) Draining air from the system. b) Clean the heating system filter. c) Turn on the dispenser reasonably. d) increase more than one pump, increase the cycle force. e) Change the pump impeller or replace the pump. f) Replace the controller. g) Adjust the pump to a reasonable position. h) Reset bypass valve. Heating system is normal but some radiators are not hot. The group is not hot radiator distributor opening is too small or open the air inside the large distributor opening or exclude the radiator air heating system water temperature rise, standby are normal, the radiator temperature is also normal, but the room temperature is not High, does not reach the heating effect a) The power of the selected model is too small, and large heating area does not match. b) The number of selected heater groups is too small, and the other heating area does not match (the standard heat dissipation of 760 standard cast iron is 130W). c) Radiator has been heavily fouled. d) floor heating system pipe clearance is too large. e) Waterway integrated system bypass valve is not reset. a) Replace the high-power boiler. b) Replace the large heat sink. c) Clean the entire system or replace the radiator. d) Only increase the flow rate of water. e) Reset the bypass valve or replace the bypass valve. In the heating state is very normal, but does not switch to the state of hot water or hot water temperature is not hot a) open the hot tap in the heating state, but the running light does not shine, then the hot water flow switch failure. b) In the summer, when the heating is off, the hot water tap is turned on and the cold water comes out, then the hot water flow switch fails or the heating water flow switch fails. c) running lights, but no hot water. First touch the surface of the heating pipe, if it is warm, it is the fault of the three-way valve did not go to the hot water state; three-way valve is normal, the plate is not exchanged for heat, the touch pad to both sides, Is the board for damage. d) no hot water during the test run, then tap water and hot water connector reversed, the flow switch does not move, resulting in no hot water. a) Change hot water flow switch. b) If the heating flow switch is faulty Replace the heating flow switch, if the hot water flow switch fails, replace the hot water flow switch. c) Three-way valve failure Replace the three-way valve; Domestic water heater normal, but can not enter the heating state a) distributor is closed, it will show the pipeline water shortage fault. b) There is excess air in the boiler and heating pipe. c) Three-way valve is only in hot water. d) The backwater filter accumulates a large amount of foreign objects, impeding the heating water circulation. e) heating pipe plug, heating water can not be recycled. a) Turn on the dispenser. b) Exhaust the air. c) If the hot water flow switch contact is always closed, then replace the hot water flow switch; if the three-way valve failure led to the heating is always closed, then replace the three-way valve. d) Remove the filter cleaning water return filter core. e) Clean the heating piping. Noise is too large a) When the fire, there are roaring boiler. b) ignition noise caused by excessive noise. c) The noise emitted during combustion is too high. d) Heating noise is too high when boiling water. e) The noise of the pump is excessive. f) Machine vibration during operation. a) Caused by excessive gas quantity during initial ignition. b) Ignition needle spacing is too large or too small spark ignition spark irregular. Or pulse igniter malfunction caused by its own failure. c) As the length of the flue and the number of bending does not meet the requirements (2 curved 3m); and exhaust pipe due to air-tightness damage, the exhaust gas is absorbed and there is noise; gas pressure is too high; proportional valve maximum current transfer is too large. d) When the heating water in the combustion heat exchanger is heated to a higher temperature will generate water noise. This noise is too high due to poor water quality or the main heat exchanger fins poor welding. e) There is air in the pipe. f) The exhaust pipe is not properly inserted or the position of the exhaust pipe opening is not suitable. g) Exhaust pipe access to public flue. h) gas pressure is too high. i) Unbalanced fan vibration. a) Too high pressure to regulate gas pressure; gas valve proportional valve is to reduce the proportion. Valve ignition current, the gas valve is a small valve regulator is adjusted, so that a small flow of air to reduce. b) Adjust the ignition needle distance or replace the pulser. c) unreasonable installation of chimney to correct installation; chimney leak plus tin seal or replace the chimney. d) improve water quality or replace heat exchanger. e) exhaust the air inside the system. f) Move the pipe away from the public tunnel to the outside. g) Reduce gas pressure or switch off gas. h) Adjust the fan's soft coupling to balance. Domestic hot water temperature is too long or not constant temperature a) water suddenly hot and cold, can not be constant. b) The water temperature is too high. c) water temperature to more than three minutes to thermostat. a) Fluctuations in water temperature due to unstable water flow or gas pressure instability. b) Water temperature is too high due to water flow too small. c) due to water quality causes water flow sensor rotation is not uniform or the water flow is too small and the inlet temperature probe caused by poor contact. a) Add current regulators and gas regulators. b) Add a pipeline pump to the tap water inlet to try to increase the water flow. c) Clean the water flow sensor or bring the inlet temperature probe into good contact with the copper wall. 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