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IC.PS.600.A4.02 / 520B2809

Fault location

Symptom: Coil burnt - cold with voltage on

Probable cause Remedy

Incorrect voltage/frequency Check coil data.

If necessary, change to correct coil type.

Check wiring diagram and wiring.

Check maximum voltage variation:

Permissible voltage variation:

±10% for dual frequency; dc and NO applications

+10% / -15% for ac on single frequency voltages

Coil short-circuit

(could be moisture in coil)

Check rest of installation for possible short-circuiting.

Check lead connections at coil.

When fault has been found, replace coil. (See also "Coil"

in section "Installation"). Consider tting a 'clip-on' style

coil with addional sealing O-ring (for high performance

range only).

Armature sluggish

a) Damaged/bent armature tube

b) Damaged armature

c) Dirt in armature tube

Replace defective component(s).

Remove dirt.

Temperature of medium too high Check valve and coil data in relation to installation

specication.

Change to suitable coil or valve.

Ambient temperature too high If possible, move valve to colder surroundings.

Check valve and coil data in relation to installation

specication.

Increase ventilation around valve and coil.

Danfoss EV210B User Manual

Questions and Answers: