電動調節閥常見故障：
電機不轉
原因：電機線圈燒壞。如使用環境**，進水或滲透有腐蝕性的氣體而造成短路或電機轉子卡死不動，電機線圈就發熱、燒壞。
判斷故障方法：用萬用表測量電機引出線正、反和零線之間的電阻，正常值約為160Ω，如偏差過大或過小，就證明線圈已燒壞。電動操作器一投入自動，調節閥就處于全開或全關位置原因：調節閥反饋線路部分故障，無反饋電流輸出。
處理方法：檢查有無提供反饋線路的電源;檢查反饋線圈(差動變壓器)的初級和次級是否斷路;檢查差動變壓器的初級電壓和次級電壓是否正常。
暖氣管路溫度不夠，室溫過低。排除方法：進水溫度低，提高進水溫度。由物業檢查系統。進回水閥門以里(靠近暖氣方向)漏水。排除方法：關閉進回水閥門。通知安裝隊維修。進回水閥門以外(靠近主管路)漏水。排除方法：通知物業半閉系統閥門;通知安裝隊進行維修。方法一：先將進水閥門關閉。打開跑風放氣門排氣，有水溢出，關閉放氣閥。
方法二：將進水閥門關閉3/4，再將回水閥門關閉后，打開放氣門排氣，有水溢出時半閉放氣閥。
電動調節閥手動操作費勁：填料壓蓋過分擰緊，試一試松動壓蓋;閥門內部發生意外，拆卸閥門檢查
電動調節閥沒顯示開度信號：開度信號線接觸**或斷線，檢查開度信號線的連接
執行器不動作， 電源燈亮而信號燈不亮。
處理方法：檢查輸入信號極性等是否正確;用對比互換法判斷控制模塊是否良好。
調節系統參數整定不當導致執行器頻繁振蕩。
處理方法：調節器的參數整定不合適，會引起系統產生不同程度的振蕩。對于單回路調節系統，比例帶過小，積分時間過短，微分時間和微分增益過大都可能產生系統振蕩?？梢酝ㄟ^系統整定的方法，合理的選擇這些參數，使回路保持穩定速度。
Motor does not turn
Reason: the motor coil burnt out. If use environment, water or penetration have corrosive gas and short-circuited or motor rotor motor coil is dead, fever, burnt out.
Methods: using a multimeter to judge fault lead wire is measured motor, and the resistance between neutral approximately 160 Ω, normal, such as too small or large deviation, will prove coil has burnt out. Automatic electric device, the regulator is an investment in the fully open or sexual position feedback circuit part: regulator, without fault feedback current output.
Treatment: check whether the power line; provide feedback, Inspection feedback coil (differential transformer) primary and secondary whether breakers, Check differential transformer's primary voltage and secondary voltage is normal.
Heating pipe temperature, temperature is too low. Method: the inlet water temperature is low, improve water temperature. By property inspection system. The valve in the backwater into (near the heating) is leaking. Method: shut into water valve. Notice installation group maintenance. In return valve (near the) is leaking. Method: notify property semiclosed system valve, Notice installation group. Methods: a water valve closed. Open the valve exhaust, running water is put, close valve.
Method 2: will fill the valve closed 3/4, again will return after the valve is closed, open valve, water overflow vent valve closed when half.
Motorized modulating manual operation difficulty: gland too tight, try a loose gland, The valve internal accident, remove valve check
Motorized modulating didn't show opening signal: opening line contact undesirable or break open degree, check the signal
Do not move, actuators and bright lights light source.
Check the input signal processing methods: polarity is proper; etc. By contrast swap method is good judgment control module.
Regulating system parameter setting to actuator frequent oscillation.
Processing methods: regulator parameter setting, will cause the system produces different degree of oscillation. For single loop control system, the ratio is too small, with integral time too short, differential time and differential gain over mostly may produce system. Through the method of system, the reasonable selection of these parameters and stable velocity loop.
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